General Observer Programs in Cycle 1
The Cycle 1 General Observers (GO) program provides the worldwide astronomical community with the first extensive opportunity to make observations with JWST. Approximately 6,000 hours were awarded to observing programs using the full suite of JWST instrumentation. Scientists also proposed for archival analysis of data from DD ERS programs and public GTO programs, theoretical investigations, and the development of software tools relevant to JWST observations. Science observations will begin following a 6-month commissioning period after launch.
To view details about a specific program, select a category below, then click the Program ID. For reference:
- Small programs: ≤ 25 hours
- Medium programs: > 25 and ≤ 75 hours
- Large programs: >75 hours
NOTE: The listing of Co-PIs in the tables below has been limited to 4. Proposals with more than 4 Co-PIs are denoted with an asterisk. The full listing is available with the proposal.
Science Categories for GO Proposals
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ID Program Title PI & Co-PIs Exclusive Access Period (months) Prime/ Parallel Time (hours) Instrument/ Mode Type 1549 The Deepest Search for Rare Molecules and Isotopologues in Planet-forming Disks PI: Klaus Pontoppidan 0 13.4 MIRI/MRS GO 1556 A Time Series Calibration of Medium Resolution Spectroscopy with MIRI PI: Drake Deming 0 12.8 MIRI/MRS GO, Calibration 1563 Icy Kuiper Belts in Exoplanetary Systems PI: Christine Chen 12 34.9 NIRSpec/IFU
NIRCam/CoronagraphyGO 1584 A DSHARP-MIRI Treasury Survey of Chemistry in Planet-forming Regions PI: Colette Salyk
Co-PI: Klaus Pontoppidan0 27.7 MIRI/MRS GO, Treasury 1618 Searching Our Closest Stellar Neighbor for Planets and Zodiacal Emission PI: Charles Beichman
Co-PI: Dimitri Mawet12 25 MIRI/Coronagraphy GO 1633 A Deep Molecular Survey of HD 189733b PI: Drake Deming 12 39 MIRI/MRS
NIRCam/GTSGO 1640 The Infrared Water Spectrum as a Tracer of Pebble Delivery to Rocky Planets PI: Andrea Banzatti 0 19.1 MIRI/MRS GO 1647 Caught in the Act: A Debris Disc in Outburst PI: Andrew Swan 12 16.7 NIRSpec/BOTS
MIRI/MRSGO 1668 Searching for Low Mass Planets in Debris Disk Gaps PI: Sebastian Marino 12 11.1 MIRI/Coronagraphy GO 1676 EUV vs. X-ray Photoevaporation of Protoplanetary Disks PI: Catherine Espaillat 12 7.7 MIRI/MRS GO 1729 A NIRSpec Phase Curve for the Ultrahot Jupiter WASP-121b PI: Thomas Mikal-Evans
Co-PI: Tiffany Kataria12 44.7 NIRSpec/BOTS GO 1743 Constraining the Atmosphere of the Terrestrial Exoplanet Gl486b PI: Megan Mansfield 12 12.6 MIRI/LRS GO 1751 Mapping Inclined Disk Astrochemical Signatures (MIDAS) PI: Melissa McClure 12 24.9 NIRSpec/IFU
MIRI/MRSGO 1759 Physics and Chemistry of Planet-Forming Disks in Extreme Radiation Environments PI: Maria Claudia Ramirez-Tannus 12 24.3 MIRI/MRS GO 1803 Unlocking the Mysteries of the Archetype Sub-Neptune GJ1214b with a Full-Orbit Phase Curve PI: Jacob Bean
Co-PI: Eliza Kempton12 48.7 MIRI/LRS GO 1843 Cloud Composition and Origin of the Reddest Known Sub-stellar Companion HD 206893 B PI: Jens Kammerer
Co-PI: Tomas Stolker12 2.5 NIRISS/AMI GO 1846 A Search for Signatures of Volcanism and Geodynamics on the Hot Rocky Exoplanet LHS 3844b PI: Laura Kreidberg 12 11.7 MIRI/LRS GO 1902 High Resolution, High Contrast Kernel Phase Imaging with NIRCam PI: Jens Kammerer
Co-PIs: Laurent Pueyo and Anand Sivaramakrishnan12 4.3 NIRCam/Imaging GO, Calibration 1911 A Search for the Giant Planets that Drive White Dwarf Accretion PI: Susan Mullally
Co-PI: Fergal Mullally12 24.6 MIRI/Imaging GO 1935 Unshrouding the Sub-Neptune Population: The Case of TOI-421b PI: Eliza Kempton 12 10.9 NIRISS/SOSS
NIRSpec/BOTSGO 1952 Determining the Atmospheric Composition of the Super-Earth 55 Cancri e PI: Renyu Hu 12 15.4 NIRCam/GTS
MIRI/LRSGO 1958 Spectroscopy of the Circumplanetary Disk around the Young Planet-mass Companion CT Cha b PI: Christian Rab
Co-PIs: Inga Kamp, Rens Waters, and Michael Migo Mueller12 4.5 MIRI/MRS GO 1977 Glows in the Dark: New Models for the Atmospheric Structure and Evolution of High Metallicity and Low Mass Giant Planets PI: Mark Marley AR 1981 Tell Me How I’m Supposed To Breathe With No Air: Measuring the Prevalence and Diversity of M-Dwarf Planet Atmospheres PI: Kevin Stevenson
Co-PIs: Jacob Lustig-Yaeger0 75.6 NIRSpec/BOTS
NIRCam/GTSGO 2001 Mineral Clouds in the Atmosphere of the Hot Jupiter HD189733b PI: Michiel Min 12 6.4 MIRI/LRS GO 2008 A Blast From the Past: A Spectroscopic Look at the Flash Heating of HD80606b PI: Tiffany Kataria
Co-PIs: Nikole Lewis and Laura Mayorga12 24.2 MIRI/LRS GO 2021 Into the Next Dimension: 3-D Eclipse Maps of the Canonical Hot Jupiter HD 189733b PI: Brian Kilpatrick
Co-PI: Tiffany Kataria12 12.4 MIRI/LRS GO 2025 The Chemistry of Planet Formation: A JWST-ALMA Survey of 4 Planet-Forming Disks PI: Karin Oberg 12 12.8 MIRI/MRS GO 2044 Direct Imaging Spectroscopy of Two Jovian Exoplanets: Characterization of the TYC 8998-760-1 Multi-Planetary System PI: Kielan Wilcomb
Co-PIs: Marshall Perrin and Quinn Konopacky12 5.2 NIRSpec/IFU
MIRI/LRSGO 2053 Search for NIR Gas in Debris Disks. Is There a Water Delivery Mechanism? PI: Isabel Rebollido 12 5.9 NIRSpec/FS GO 2055 Tracing Hot Jupiter Formation and Migration with Volatile and Refractory Element Ratios PI: Joshua Lothringer 12 9.1 NIRSpec/BOTS GO 2062 Transmission Spectroscopy of the Super-Neptune WASP-166b PI: Andrew Mayo
Co-PI: Courtney Dressing12 22.8 NIRISS/SOSS
NIRSpec/BOTSGO 2084 Is It Raining Lava in the Evening on 55 Cancri e? PI: Alexis Brandeker 12 25 NIRCam/GTS GO 2113 Exploring the Morning and Evening Limbs of a Transiting Exoplanet PI: Nestor Espinoza 12 15.6 NIRISS/SOSS GO 2149 The Nature, Origin, and Fate of Two Planets of a Newborn System through the Lens of their Relative Atmospheric Properties PI: Jean-Michel Desert 12 24.6 NIRSpec/BOTS GO 2153 Detecting a Young 2 Jupiter Mass Planet Embedded in the Disk of HD 163296 PI: Gabriele Cugno
Co-PI: Richard Teague12 7.8 MIRI/Coronagraphy GO 2158 From East to West: The First Simultaneous Temperature and Cloud Map of a Hot Jupiter PI: Vivien Parmentier 12 25 NIRSpec/BOTS GO 2159 The First Near-infrared Spectroscopic Phase-curve of a Super-Earth PI: Nestor Espinoza 12 14.9 NIRSpec/BOTS GO 2232 Precision Tests of the Physics of Mixing in Cool Planetary and Brown Dwarf Atmospheres PI: Jonathan Fortney AR 2243 A Direct Detection of the Closest Jupiter Analog with JWST/MIRI PI: Elisabeth Matthews 12 13.8 MIRI/Coronagraphy GO 2260 Caught in the Act of Dispersing their Disks? MIRI MRS Can Tell PI: Ilaria Pascucci 12 18 MIRI/MRS GO 2278 Illuminating Ice: A 3D View of Water Ice during Planet Formation PI: Ilse Cleeves 12 16.2 NIRCam/Coronagraphy GO 2297 Unveiling Formation Signatures in the Atmosphere of beta Pictoris c PI: Tomas Stolker 12 5.1 NIRISS/AMI GO 2304 Hot Take on a Cool World: Does Trappist-1c Have an Atmosphere? PI: Laura Kreidberg 12 17.9 MIRI/Imaging GO 2311 JWST MIRI Imaging Survey of Planetary-mass Companions: Testing the Compact Disk Hypothesis PI: Ya-Lin Wu
Co-PI: Brendan Bowler12 16.2 MIRI/Imaging GO 2319 TOI-178: The Best Laboratory for Testing Planetary Formation Theories PI: Matthew Hooton 12 24.9 NIRSpec/BOTS GO 2334 Exploring the Nature of a Temperate Exoplanet in the Fulton Gap PI: Mario Damiano 12 14.4 NIRSpec/BOTS GO 2347 A Hell of a Phase Curve: Mapping the Surface and Atmosphere of a Lava Planet K2-141b PI: Lisa Dang 12 24.9 MIRI/LRS GO 2358 Under the Light of a Dead Star: Revealing the Atmospheric Composition of a White Dwarf Planet PI: Ryan MacDonald 12 13.3 NIRSpec/BOTS GO 2372 Deep Characterization of the Atmosphere of a Temperate Sub-Neptune PI: Renyu Hu 12 67.9 NIRSpec/BOTS GO 2420 Probing the Terrestrial Planet TRAPPIST-1c for the Presence of an Atmosphere PI: Alexander Rathcke 0 24.9 NIRSpec/BOTS GO 2437 Diamonds are Forever: Probing the Carbon Budget and Formation History of the Ultra-Puffy Hot Jupiter WASP-127b PI: Stefan Pelletier
Co-PIs: Bjorn Benneke and Romain Allart12 13.1 NIRSpec/BOTS GO 2454 Unveiling the Nature of the Impossible Planets PI: Peter Gao 12 14.9 NIRSpec/BOTS GO 2487 Detecting a Wide-Separation Gas Giant in AS 209 PI: Stefano Facchini 12 4.6 NIRCam/Imaging GO 2488 Real Time Exoplanet Meteorology: Direct Measurement of Cloud Dynamics on the High-Eccentricity Hot Jupiter HD80606 b PI: James Sikora 12 25 NIRSpec/BOTS GO 2498 The Atmosphere of a 17Myr Old Hot Jupiter PI: Andrew Mann 12 8.9 NIRSpec/BOTS GO 2507 Thermal Emission from the First Planet Transiting a White Dwarf PI: Andrew Vanderburg 12 3 NIRSpec/BOTS GO 2508 The First and Only Multi-wavelength Map of an Ultra-short-period Sub-Earth PI: Michael Zhang 12 13.2 MIRI/LRS GO 2509 Kernel-Phase Detection Limits for Planet Discovery with JWST PI: Samuel Factor AR 2512 Seeing the Forest and the Trees: Unveiling Small Planet Atmospheres with a Population-Level Framework PI: Natasha Batalha
Co-PI: Johanna Teske0 141.6 NIRSpec/BOTS GO 2538 Using JWST to Search for Planetary Sculptors in an ALMA-Selected Sample of Debris Disks PI: Sasha Hinkley 12 23.5 MIRI/Coronagraphy GO 2540 Investigating the Disk-Planet Interaction in the HD 163296 System with JWST PI: Luca Ricci 12 15.6 NIRCam/Coronagraphy GO 2562 Dust Settling and Grain Evolution in Edge-on Protoplanetary Disks PI: Francois Menard
Co-PI: Karl Stapelfeldt12 10.8 NIRCam/Imaging
MIRI/ImagingGO 2571 Unveiling the Atmospheric Composition and Haze Formation Rates in the Young, Cool, Super-Puff Kepler-51d PI: Jessica Libby-Roberts
Co-PI: Zach Berta-Thompson12 20.5 NIRSpec/BOTS GO 2589 Atmospheric Reconnaissance of the TRAPPIST-1 Planets PI: Olivia Lim 0 53.7 NIRISS/SOSS
NIRSpec/BOTSGO 2594 The Twin Paradox: Assessing Planetary Radius Evolution with a CH4 Thermometer PI: Jessica Spake
Co-PI: Zafar Rustamkulov12 16.6 NIRSpec/BOTS
NIRISS/SOSSGO 2627 Demonstrating a Model-based Coronagraphic Phase Retrieval for Processing of High-Contrast-Imaging Observations with the James Webb Space Telescope PI: Marie Ygouf 12 9.9 Wfsc Fine Phasing NIRCam/Coronagraphy
NIRCam/Engineering ImagingGO, Calibration 2667 Good Vibrations: Directly Measuring Exoplanet Aerosol Compositions with MIRI Spectroscopy PI: Hannah Wakeford 12 9.2 MIRI/LRS GO 2708 The Thermal Emission Spectrum of the Closest M Dwarf Transiting Rocky Planet PI: Zach Berta-Thompson 12 17.8 MIRI/LRS GO 2722 Chemical Disequilibrium in a Temperate Sub-Neptune PI: Nikku Madhusudhan 12 20.4 NIRSpec/BOTS
MIRI/LRS
NIRISS/SOSSGO -
ID Program Title PI & Co-PIs Exclusive Access Period (months) Prime/ Parallel Time (hours) Instrument/ Mode Type 1433 Physical Properties of the Triply-Lensed z = 11 Galaxy PI: Dan Coe 0 11.3 NIRCam/Imaging
NIRSpec/MOSGO 1567 Early Galaxy Assembly Uncovered with ALMA and JWST: A Remarkably UV and [CII] Bright, Strongly Lensed Sub-L* Galaxy at z=6.072 PI: Seiji Fujimoto 12 12.3 NIRCam/Imaging
NIRSpec/IFUGO 1571 PASSAGE– Parallel Application of Slitless Spectroscopy to Analyze Galaxy Evolution PI: Matthew Malkan 0 0/591 NIRISS/WFSS GO, Pure Parallel 1572 Mapping, Resolving and Penetrating into the Dusty Spiderweb Protocluster with Unique Pa-beta Imaging PI: Helmut Dannerbauer
Co-PI: Yusei Koyama12 3.6 NIRCam/Imaging GO 1626 Achieving a Revolutionary Panchromatic View of Early Galaxy Growth through NIRSpec/IFU Observations of 12 Massive z>6.5 Galaxies with ALMA-derived [CII] Redshifts PI: Mauro Stefanon 12 14.1 NIRSpec/IFU GO 1635 Galaxy Protoclusters as Drivers of Cosmic Reionization PI: Crystal Martin 12 35.2/9.7 NIRCam/Imaging
NIRSpec/MOSGO 1657 Anchoring z>6 Galaxy Metallicities Using T_e and n_e Diagnostics Enabled by JWST and ALMA Spectroscopy PI: Yuichi Harikane
Co-PI: Ryan Sanders12 23.7 NIRSpec/IFU
MIRI/MRS
NIRCam/ImagingGO 1671 Emission Line Galaxies Beyond the Limits of the Hubble UDF: Physical Conditions in Ultra-faint Star Forming Galaxies PI: Michael Maseda 12 23.9 NIRSpec/MOS GO 1701 Dissecting the Prototypical Starbursts NGC 253 and M 82 and Their Cool Galactic Winds PI: Alberto Bolatto 12 42.8 MIRI/Imaging
MIRI/MRS
NIRCam/ImagingGO 1712 JWST Beholds the Multiple-merger Assembly of the Most Luminous Quasar PI: Tanio Diaz-Santos 12 23.3 MIRI/MRS
NIRSpec/IFUGO 1721 Probing the Interstellar Medium of Galaxies in the Early Universe PI: Jeyhan Kartaltepe AR 1740 H-drop Galaxies: "Rosetta Stones'' at z~13 for Galaxy Formation Studies PI: Yuichi Harikane 12 6.6 NIRSpec/FS GO 1747 Linking Bright Galaxy Properties to IGM Opacity and Environment in the Early Epoch of Reionization with NIRSpec PI: Guido Roberts-Borsani 6 25.1 NIRSpec/MOS GO 1758 Confirming a Potential Ultra-Massive Galaxy at z=10.57 PI: Steven Finkelstein 12 2.6 NIRSpec/FS GO 1762 Halfway to the Peak: A Bridge Program To Map Coeval Star Formation and Supermassive Black Hole Growth PI: Alexandra Pope
Co-PIs: Anna Sajina and Lin Yan12 24.6 MIRI/MRS GO 1783 JWST probes Feedback in Emerging extrAgalactic Star clusTers: JWST-FEAST PI: Angela Adamo 12 45 NIRCam/Imaging
MIRI/ImagingGO 1791 The Early Assembly History of the Most Massive Halo in the Reionization Era PI: Justin Spilker 12 6.1 NIRCam/Imaging
MIRI/ImagingGO 1810 The Stellar and Gas Content of Galaxies at Cosmic Noon PI: Sirio Belli 12 46/35.7 NIRSpec/MOS GO 1827 NIRSpec Integral Field Spectroscopy of LyC-Leaking Galaxies PI: Koki Kakiichi 12 24.1 NIRSpec/IFU GO 1837 PRIMER: Public Release IMaging for Extragalactic Research PI: James Dunlop 0 187.2/94.97 MIRI/Imaging GO, Treasury 1840 ALMA [OIII]88um Emitters. Signpost of Early Stellar Buildup and Reionization in the Universe PI: Javier Alvarez-Marquez
Co-PI: Takuya Hashimoto12 33.9 NIRSpec/IFU
NIRCam/ImagingGO 1864 The Formation of a Primeval Hyperstarburst Galaxy at z~6 PI: Kedar Phadke 12 18.9 NIRCam/Imaging
MIRI/Imaging
NIRSpec/IFU
MIRI/MRSGO 1865 Witnessing the Circumgalactic Medium in Formation: The Warm Dust and Molecular Gas in a Record-Breaking Galactic Wind PI: Sylvain Veilleux 12 8.3 MIRI/Imaging
NIRCam/ImagingGO 1869 LyC22 - Deep Spectroscopic Insights on Star-forming Galaxies 2.2 Gyr after the Big Bang PI: Daniel Schaerer 12 73.5 NIRSpec/MOS GO 1879 Opening the Era of Direct Metallicity Measurements in High Redshift Galaxies PI: Mirko Curti 12 54.2 NIRSpec/MOS GO 1883 A Modern Theory for Strong Line Metallicity Indicators in the Era of JWST PI: Desika Narayanan AR 1893 Galaxy Assembly at z > 6: Unraveling the Origin of the Spatial Offset between the UV and FIR Emission PI: Stefano Carniani 12 21.3 NIRSpec/IFU GO 1895 FRESCO: The First Reionization Epoch Spectroscopic COmplete Survey PI: Pascal Oesch 0 53.1 NIRCam/WFSS GO 1914 The AURORA Survey: First Direct Metallicity Calibrations at High Redshift PI: Alice Shapley
Co-PI: Ryan Sanders12 63.8 NIRSpec/MOS GO 1933 Anatomy of an Ionized Bubble at z=6.6: Which Galaxies Reionized the Universe? PI: Jorryt Matthee
Co-PI: Rohan Naidu12 18.2 NIRCam/WFSS GO 1963 UDF Medium Band Survey: Using H-alpha Emission To Reconstruct Ly-alpha Escape during the Epoch of Reionization PI: Christina Williams
Co-PIs: Michael Maseda and Sandro Tacchella0 20.4/15.5 NIRCam/Imaging GO 1991 Lifting the Veil on the Most Obscured Galaxies in the Universe PI: George Privon 12 8.5 MIRI/MRS
NIRSpec/IFUGO 2079 The Next Generation Deep Extragalactic Exploratory Public (NGDEEP) Survey: Feedback in Low-Mass Galaxies from Cosmic Dawn to Dusk PI: Steven Finkelstein
Co-PIs: Casey Papovich and Norbert Pirzkal0 121.7/96.4 NIRISS/WFSS GO, Treasury 2110 Ultra-deep Continuum Spectroscopy of Quiescent Galaxies at 1.0<z<2.5: Chemical Abundances and Stellar Kinematics PI: Mariska Kriek
Co-PI: Aliza Beverage0 22.9 NIRSpec/MOS GO 2123 A Pathfinder for JWST Spectroscopy: Deep High Spectral Resolution Maps of Galaxies over 1<z<6 PI: Susan Kassin 0 74.3 NIRSpec/MOS GO 2130 Embedded Star Formation in Nearby Galaxies: The Advent of Parsec Scale Studies beyond the Magellanic Clouds PI: Janice Lee 0 27.9 MIRI/Imaging
NIRCam/ImagingGO 2136 The Emergence of the Modern Hubble Sequence Revealed by JWST Slit-stepping PI: Tucker Jones 0 31.7 NIRSpec/MOS GO 2162 Does Turbulence Suppress Star Formation in AGN hosts? PI: Nicole Nesvadba 12 4.3 NIRSpec/IFU
MIRI/MRSGO 2186 NIRSpec IFU Spectroscopy of the High-density Starburst in Ultra-luminous Infrared Galaxies PI: Shunsuke Baba 12 6.7 NIRSpec/IFU GO 2198 Quiescent or Dusty? Unveiling the Nature of Extremely Red Galaxies at z>3 PI: Laia Barrufet
Co-PI: Pascal Oesch12 9.8 NIRCam/Imaging
NIRSpec/MOSGO 2219 Shining Light on the CO-dark H2 Gas in the Heart of M83 PI: Svea Hernandez 12 14.8 MIRI/MRS GO 2234 The JWST-legacy Narrow-band Survey of H-alpha and [OIII] Emitters in the Epoch of Reionization PI: Eduardo Banados 12 17.8 NIRCam/Imaging GO 2279 Where Cosmic Dawn Breaks First: Mapping the Primordial Overdensity Powering a z~9 Ionized Bubble PI: Rohan Naidu 12 7.1 NIRCam/WFSS GO 2282 A Strongly Magnified Individual Star and Parsec-Scale Clusters Observed in the First Billion Years at z = 6 PI: Dan Coe 0 13.9 NIRCam/Imaging
NIRSpec/MOSGO 2285 A Massive Quiescent Galaxy at Redshift 4.657 PI: Adam Carnall 12 8 NIRSpec/FS GO 2301 Unearthing the Fossilized Andromeda Galaxy: A Spectroscopic Pilot Survey of M31 Giants PI: John Mackereth 12 12.1 NIRSpec/MOS GO 2321 The First Blind H-alpha Narrow-band Survey of Star-formation at z>6 PI: Philip Best 12 40.5 NIRCam/Imaging GO 2344 Mapping Emission and Absorption Line Metallicities onto the Same Univeral Scale PI: Patricia Schady
Co-PI: Nial Tanvir12 24.9 NIRSpec/FS GO 2345 Resolved Studies of a Unique Lensed Quiescent Galaxy at z=2: Testing Models of Assembly History, Quenching, and IMF Variations PI: Andrew Newman 12 13.7 NIRSpec/IFU
NIRCam/ImagingGO 2354 Preventing the Slit-Loss Catastrophe Using Flexible, Spatially Resolved Galaxy Models PI: Joel Leja AR 2362 Dawn of the Monsters: JWST Characterization of Extremely Massive Galaxies at z~5 PI: Cemile Marsan
Co-PI: Adam Muzzin12 8.6 NIRSpec/FS
NIRCam/ImagingGO 2368 What Lies Beneath: Understanding the Hidden Engines Driving Extreme Outflows and Galaxy Quenching PI: Christy Tremonti 12 19.8 MIRI/MRS GO 2391 The Resolved Properties of PAHs at Low Metallicity PI: Julia Roman-Duval 12 67.3 MIRI/Imaging
NIRCam/ImagingGO 2410 How Efficiently Do Galaxies Produce Ionizing Photons in the Epoch of Reionization? PI: Ramesh Mainali AR 2417 Physical Characterization of a Massive Galaxy Protocluster ~1 Billion Years after the Big Bang PI: Dominik Riechers 12 11 NIRCam/Imaging
MIRI/Imaging
NIRSpec/IFU
NIRSpec/MOSGO 2424 Revealing the Ionizing Spectrum of Low-Metallicity Galaxies with MIRI PI: Anne Jaskot 12 24.5 MIRI/MRS GO 2426 Spectroscopic Confirmation and Characterization of Bright Galaxies at z~9 PI: Micaela Bagley
Co-PI: Sofia Rojas12 18.1 NIRSpec/FS GO 2439 Resolving the Cooling Flow at the Center of the Phoenix Cluster PI: Michael McDonald 12 14.2 MIRI/MRS GO 2452 The Vanishing Act: PAHs and Heavy Element Abundance in M101 PI: JD Smith 12 7 NIRCam/Imaging GO 2457 Extreme Quasar Feedback at the Peak of the Galaxy Formation Epoch PI: Andrey Vayner 12 20.9 NIRSpec/IFU GO 2478 Spectroscopy of Dwarf Galaxies in the Reionization Era: Ionizing Sources and Gas Conditions at Very Low Metallicity PI: Daniel Stark 12 10 NIRSpec/MOS GO 2484 JWST Probes Star Formation Efficiency in Giant Molecular Clouds at z=1 PI: Miroslava Dessauges-Zavadsky
Co-PI: Johan Richard12 8.7 NIRSpec/IFU GO 2511 How Do the Small Survive: PAH’s in Low Metallicity Starburst II Zw 40 PI: Thomas Lai
Co-PIs: JD Smith, Adolf Witt, Aditya Togi, Brandon Hensley, and others*12 4.2 NIRSpec/IFU
MIRI/MRSGO 2514 PANORAMIC – A Pure Parallel Wide Area Legacy Imaging Survey at 1-5 Micron PI: Christina Williams
Co-PI: Pascal Oesch0 0/150 NIRCam/Imaging GO, Pure Parallel 2516 Revealing the Hidden Stellar Emission in the Highest-fidelity ALMA-mapped Submillimeter Galaxies PI: Jacqueline Hodge
Co-PI: Elisabete da Cunha12 14.3 NIRCam/Imaging
MIRI/ImagingGO 2555 How Do Ionizing Photons Escape the Sunburst Arc? PI: T. Emil Rivera-Thorsen 12 24.2 NIRSpec/IFU
NIRCam/ImagingGO 2561 UNCOVER: Ultra-deep NIRCam and NIRSpec Observations Before the Epoch of Reionization PI: Ivo Labbe
Co-PI: Rachel Bezanson0 68.2/50.2 NIRCam/Imaging
NIRSpec/MOSGO, Treasury 2565 How Many Quiescent Galaxies Are There at 3<z<4 Really? PI: Karl Glazebrook
Co-PI: Themiya Nanayakkara12 14.4 NIRSpec/MOS GO 2566 Characterizing Stellar Mass Assembly and Physical Properties in the Brightest Galaxy in the Redshift>5 Universe PI: Gourav Khullar 12 19.4 NIRSpec/IFU
NIRCam/ImagingGO 2567 Do Massive Black Holes Come in Small Packages? A Census of Black Holes in Compact Stellar Systems in the Virgo Cluster PI: Matthew Taylor
Co-PI: Patrick Cote12 41.2 NIRSpec/IFU GO 2581 Come Out, Come Out, Wherever You Are: Seeking All the Massive Young Clusters Hidden in the Antennae PI: Rupali Chandar 12 6 NIRCam/Imaging
MIRI/ImagingGO 2593 CECILIA: A Direct-method Metallicity Calibration for Cosmic Noon through the Epoch of Reionization PI: Allison Strom
Co-PI: Gwen Rudie12 39.2 NIRSpec/MOS GO 2659 Beasts in the Bubbles: Characterizing ultra-luminous Galaxies at Cosmic Dawn PI: John Weaver 12 13.6 NIRSpec/IFU GO 2674 Environmental Effects on Galaxy Evolution in a z=5.2 Proto-cluster PI: Pablo Arrabal Haro 12 15.2/7.8 NIRSpec/MOS GO 2687 Leveraging Early Public JWST Data to Measure Luminosity Functions and Rest-UV Slopes from 6<z<12 PI: Micaela Bagley AR -
ID Program Title PI & Co-PIs Exclusive Access Period (months) Prime/ Parallel Time (hours) Instrument/ Mode Type 1835 Unraveling the Knots of Gaseous Cosmic Web Filaments at z~3 through H-alpha Emission Observations PI: Sebastiano Cantalupo 12 24.4 NIRSpec/MOS GO 2073 Towards Tomographic Mapping of Reionization Epoch Quasar Light-Echoes with JWST PI: Joseph Hennawi
Co-PI: Frederick Davies12 24.3/6.3 NIRCam/Imaging
NIRSpec/MOSGO 2180 Structure Formation and Baryonic Cycling in the Edge-on Galaxy NGC891 PI: Ilse De Looze 12 22.7/1.9 NIRCam/Imaging
MIRI/MRS
MIRI/ImagingGO -
ID Program Title PI & Co-PIs Exclusive Access Period (months) Prime/ Parallel Time (hours) Instrument/ Mode Type 1638 Securing the TRGB Distance Indicator: A Pre-Requisite for a JWST Measurement of H_0 PI: Kristen McQuinn 12 6.8/2 NIRCam/Imaging GO 1727 COSMOS-Web: The JWST Cosmic Origins Survey PI: Jeyhan Kartaltepe
Co-PI: Caitlin Casey0 207.8/81.3 NIRCam/Imaging GO, Treasury 1794 100% Gain in Precision and Accuracy of H0 Measurement from JWST Stellar Kinematics of a Lens Galaxy PI: Akin Yildirim
Co-PIs: Sherry Suyu and Tommaso Treu12 9.5 NIRSpec/IFU GO 1871 The First Observations of the Ionizing Luminosity of Galaxies within the Epoch of Reionization PI: John Chisholm 12 22.2 NIRSpec/MOS GO 1995 Answering the Most Important Problem in Cosmology Today: Is the Tension in the Hubble Constant Real? PI: Wendy Freedman
Co-PI: Barry Madore12 25.8/11.2 NIRCam/Imaging GO 2046 A Definitive Test of the Dark Matter Paradigm on Small Scales PI: Anna Nierenberg 12 38.4 MIRI/Imaging GO 2078 A SPectroscopic survey of biased halos In the Reionization Era (ASPIRE): A JWST Quasar Legacy Survey PI: Feige Wang
Co-PIs: Joseph Hennawi and Xiaohui Fan12 61.5/29.6 NIRCam/WFSS GO 2134 Absolute Brightness Measurement of the Extragalactic Background Light Using Gallilean Satellites Eclipse Occultations PI: Kohji Tsumura 12 24.3 NIRCam/Imaging GO 2608 Revealing the Earliest Reionized Bubbles with JWST PI: Anson D'Aloisio AR -
ID Program Title PI & Co-PIs Exclusive Access Period (months) Prime/ Parallel Time (hours) Instrument/ Mode Type 1424 Extreme Events on Gas Giants: Impacts and Storm Eruptions PI: Leigh Fletcher 12 10 MIRI/MRS
NIRSpec/IFUGO, Non-Disruptive ToO 1566 The Coma Dust and Volatiles of C/2017 K2 (Pan-STARRS) PI: Chick Woodward 12 12.4 MIRI/MRS
NIRSpec/IFU
NIRCam/ImagingGO 1568 An Ultra-Sensitive Pencil Beam Search for 10 km Trans-Neptunian Objects PI: John Stansberry
Co-PIs: David Trilling and Wesley Fraser12 45.1 NIRCam/Imaging GO 1585 Analysis of GTO Observations of Uranus by the MIRI Instrument PI: Glenn Orton 12 AR 1598 Analysis of GTO Observations of Neptune by the MIRI Instrument PI: Glenn Orton 12 AR 1604 Dynamics and Temporal Variability in the Atmosphere of Neptune PI: Glenn Orton 12 8.3 MIRI/MRS GO 1658 Pluto's Climate System with JWST PI: Emmanuel Lellouch 12 23.4 MIRI/MRS
MIRI/LRS
NIRCam/Imaging
MIRI/ImagingGO 1731 Variability and Abundance of Hydration on M-Type Asteroid (16) Psyche: The Search for Water on the Largest Metallic Asteroid PI: Stephanie Jarmak 12 8.7 NIRSpec/IFU
MIRI/MRSGO 1786 The Moons of Uranus: A NIRSpec Investigation of Their Origins, Organic Constituents, and Possible Ocean World Activity PI: Richard Cartwright 12 18.7 NIRSpec/IFU GO 1897 Pushing the Envelope of the JWST Discovery Space: Measuring the Insoluble Organic Matter (IOM) and Polycyclic Aromatic Hydrocarbon (PAH) Content of Comet 9P/Tempel 1 PI: Nathan Roth 12 5.5 NIRSpec/IFU
MIRI/MRSGO 2037 First Detection of Volatiles from a Main-belt Comet PI: Michael Kelley 12 AR 2060 Unraveling the Primordial Constituents and Exogenic Processes That Shaped Callisto's Surface PI: Richard Cartwright 12 3.4 NIRSpec/IFU GO 2127 Frozen Oort Cloud Comet Hale-Bopp PI: Michael Kelley 12 11.1 NIRCam/Imaging
NIRSpec/IFUGO 2211 A Pure Parallel Survey of Water in the Asteroid Belt PI: David Trilling 12 0/38 NIRCam/Imaging GO,
Pure Parallel2337 Composition of an Interstellar Object – Unique Insights into Protoplanetary Disk Midplane Chemistry PI: Martin Cordiner 12 17.7 NIRSpec/IFU
MIRI/LRSGO,
Disruptive ToO2361 Are L-type Asteroids Ancient Reservoirs for the Earliest Solar System Solids? PI: Katherine de Kleer 12 23.4 MIRI/MRS
NIRSpec/FSGO 2416 Measuring Volatile Production in Active Centaurs with JWST NIRSpec PI: Adam McKay 12 26.3 NIRSpec/IFU GO 2418 DiSCo-TNOs: Discovering the Composition of the Trans-Neptunian Objects, Icy Embryos for Planet Formation PI: Noemi Pinilla-Alonso 0 98.2 NIRSpec/IFU GO 2524 Trace Gases in Titan's Atmosphere with JWST MIRI PI: Conor Nixon 12 AR 2537 Analysis of Low-Albedo Asteroids Observed through JWST Guaranteed Time PI: Andrew Rivkin 12 AR 2550 The First Near-IR Spectroscopic Survey of Neptune Trojans PI: Larissa Markwardt 12 24.1 NIRSpec/IFU GO 2574 JWST Observations of Lucy Mission Targets PI: Michael Brown 12 25.5 NIRSpec/IFU
MIRI/MRSGO -
ID Program Title PI & Co-PIs Exclusive Access Period (months) Prime/ Parallel Time (hours) Instrument/ Mode Type 1586 Black Hole Jet Launching Physics with MIRI PI: Poshak Gandhi
Co-PIs: Thomas Maccarone and Aarran Shaw12 6.6 MIRI/LRS GO,
Disruptive ToO1621 Testing the Emerging Paradigm of Wind-driven Accretion with NIRSpec Spectro-imaging PI: Ilaria Pascucci 12 15.1 NIRSpec/IFU GO 1644 A Cornerstone Study of the Jet/Outflow Connexion: The Remarkable DG Tau B System PI: Catherine Dougados
Co-PI: Benoit Tabone12 11.1 MIRI/MRS
NIRSpec/IFU
NIRCam/ImagingGO 1666 Validating JWST's In-orbit Clock Accuracy PI: Poshak Gandhi
Co-PIs: Thomas Maccarone and Aarran Shaw12 22.9 NIRCam/TSO GO,
Calibration1706 PROJECT-J: PROtostellar JEt's Cradle Tested with JWST PI: Brunella Nisini 12 23.1 MIRI/MRS
NIRSpec/IFUGO 1714 The Origin of the Crab Nebula PI: Tea Temim 12 22.6 MIRI/Imaging
MIRI/MRS
NIRCam/ImagingGO 1726 Shocks and Expanding Ejecta in Supernova 1987A PI: Mikako Matsuura
Co-PIs: Richard Arendt, Eli Dwek, Claes Fransson, and Josefin Larsson12 24.3 NIRCam/Imaging GO 1741 Solid-state Water Inside the Snowline in Planet-forming Disks: Exploring the Origin of Water on Terrestrial Planets PI: Alexey Potapov
Co-PI: Jeroen Bouwman12 11.6 NIRSpec/IFU
MIRI/MRSGO 1742 Planetary Nebula NGC 6302 – A Testbed for Dust Formation and Processing in a Dense Torus Irradiated by Harsh UV Radiation PI: Mikako Matsuura 12 17.8 MIRI/MRS GO 1798 Characterizing Accretion Signatures in the Youngest Protostars: The Case of L1527 IRS PI: John Tobin 12 7.6 NIRSpec/IFU
MIRI/MRSGO 1802 Investigating Protostellar Accretion Across the Mass Spectrum PI: Tom Megeath 12 65.1 MIRI/MRS
NIRSpec/IFUGO 1860 Disentangling the Origin of Dust in Type IIn Supernovae PI: Ori Fox 12 12.4 MIRI/MRS GO 1863 Confirming the First Low-Metallicity Wolf-Rayet Dust Factory PI: Ryan Lau 12 6.7 NIRSpec/IFU GO 1874 JWST Spectrophotometry of Brown Dwarf Pulsars PI: Stuart Littlefair
Co-PIs: Gregg Hallinan and John Pineda12 5.5 NIRISS/SOSS GO 1905 Testing Protoplanetary Disk Evolution and Brown Dwarf Formation in Starburst: NIRCam and MIRI Observations of the Young Cluster Westerlund 1 PI: Mario Guarcello
Co-PIs: Koraljka Muzic, Adam Ginsburg, Andrew Winter, Juan Martinez-Galarza, and others*12 18.9 NIRCam/Imaging
MIRI/ImagingGO 1906 NAOMY-J: NIR-dark Accretion Outbursts from Massive Young Stellar Objects with JWST PI: Alessio Caratti o Garatti
Co-PIs: Jochen Eisloeffel and Bringfried Stecklum12 24.9 NIRSpec/IFU
MIRI/MRSGO, Non-Disruptive ToO 1936 Nebular Spectroscopy of a Kilonova with JWST PI: Charles Kilpatrick 0 14.9 NIRCam/Imaging
NIRSpec/FSGO, Non-Disruptive ToO, Long Term ToO 1947 JWST Survey of the Prototypical Core-collapse Supernova Remnant Cassiopeia A PI: Dan Milisavljevic 12 45.1 MIRI/Imaging
MIRI/MRS
NIRCam/Imaging
NIRSpec/IFUGO 1959 Ice Chemical Complexity Toward the Ophiuchus Molecular Cloud PI: Will Rocha 12 7.2 MIRI/MRS GO 1960 The JWST Protostellar Ice Legacy Survey PI: Ewine Van Dishoeck 12 21.5 NIRSpec/IFU GO 1979 The Faintest and Coolest Stars in the Two Closest Globulars PI: Luigi Bedin 12 6.9/2.2 NIRCam/Imaging GO 1984 Fine-Tuned Search for Kilonova Emission in a Short Gamma-Ray Burst: Implications for Gravitational Wave Sources and r-Process Nucleosynthesis PI: Edo Berger 0 11.9 NIRCam/Imaging
NIRSpec/FSGO,
Disruptive ToO2050 Mid-infrared Molecular Absorption in the Atmospheres of K Giants PI: Gregory Sloan 12 5.3 MIRI/MRS GO 2061 Nucleosynthesis, Astrophysics, and Cosmology with IR Observations of a Gravitational Wave Counterpart PI: Ryan Foley 0 17.2 MIRI/Imaging
NIRCam/Imaging
NIRSpec/FSGO,
Disruptive ToO2072 See Through Supernovae: Nebular Spectroscopy of Exploding White Dwarfs PI: Saurabh Jha 0 19.8 MIRI/LRS
NIRSpec/FS
MIRI/MRSGO, Non-Disruptive ToO 2091 Detecting the Synthesis of the Heaviest Elements with Photometry of a Kilonova in the Optically Thin Phase PI: Maria Drout 0 9.3 NIRCam/Imaging
MIRI/ImagingGO 2114 MIR Spectroscopy of Type Ia Supernovae: The Key To Unlocking Their Explosions and Element Production PI: Chris Ashall
Co-PIs: Peter Hoeflich and Eddie Baron0 21.1 MIRI/MRS GO, Non-Disruptive ToO 2122 Dust, Mass Loss and Explosions of Massive Stars in the MIR PI: Chris Ashall
Co-PIs: Peter Hoeflich and Scott Davis0 22.1 MIRI/MRS
NIRSpec/FSGO, Non-Disruptive ToO 2124 Explaining the Diversity of Cold Worlds PI: Jacqueline Faherty 12 24.6 NIRSpec/FS
MIRI/ImagingGO 2204 Confirming the Most Massive Neutron Star with Observations of Its Companion PI: Paulo Freire
Co-PI: Rosie Chen12 5.2 NIRCam/Imaging GO 2209 Preparing for Planets: The Impact of the Extraordinary Outburst of EX Lup on Its Circumstellar Disk PI: Peter Abraham 12 1.6 MIRI/MRS GO 2288 Formation and Impact of Silicate Clouds on L Dwarfs PI: Joshua Lothringer
Co-PI: Jeff Valenti0 7.4 NIRSpec/FS
MIRI/MRSGO 2302 Bolometric Luminosities of Cool Brown Dwarfs: The Key To Their Effective Temperatures and the Mass Function PI: Michael Cushing 12 75 NIRSpec/FS
MIRI/LRS
MIRI/ImagingGO 2327 Water Ice Clouds and Weather on the Coldest Brown Dwarf PI: Andrew Skemer
Co-PIs: Caroline Morley and Brittany Miles12 13.7 NIRSpec/BOTS GO 2348 Chemistry of Mass Loss in the Interacting Stripped-Envelope Supernova 2014C PI: Samaporn Tinyanont 12 3 NIRSpec/IFU
MIRI/MRSGO 2395 A Comprehensive View of a Binary Neutron Star Merger PI: Andrew Levan
Co-PIs: Stephen Smartt and Andrew Fruchter0 25 NIRSpec/FS
NIRCam/ImagingGO,
Disruptive ToO2473 Multiplicity Survey of 20 Y Dwarfs with NIRCam Kernel Phase Interferometry PI: Loic Albert
Co-PI: Michael Meyer12 38.8 NIRCam/Imaging GO 2559 Brown Dwarfs, White Dwarfs and Planetary Disks in an Ancient Stellar System PI: Ilaria Caiazzo
Co-PI: Harvey Richer12 20.7 NIRCam/Imaging GO 2635 Infrared Emission from the Magnetar 4U 0142+61: A Dusty Fallback Disk? PI: George Pavlov
Co-PI: Oleg Kargaltsev12 2.9 MIRI/LRS
NIRCam/TSO
NIRCam/ImagingGO 2640 A Census to the Bottom of the IMF in Westerlund 2: Atmospheres, Disks, Accretion, and Demographics PI: William Best 12 9.4/3.8 NIRSpec/MOS GO 2666 Are Supernovae Dust Factories? PI: Ori Fox
Co-PI: Tamas Szalai12 12.8 MIRI/Imaging GO 2692 Accurate Mass Determination of the Nearby Single White Dwarf L845-70 through Astrometric Microlensing PI: Kailash Sahu 12 2.6 NIRCam/Imaging GO -
ID Program Title PI & Co-PIs Exclusive Access Period (months) Prime/ Parallel Time (hours) Instrument/ Mode Type 1557 Photodissociation Region Models for JWST Observations PI: Mark Wolfire AR 1558 The Ring Nebula as a Laboratory for the Interaction of Molecules, PAHs and Dust in Strong UV Radiation Fields PI: Michael Barlow
Co-PI: Nick Cox12 19 MIRI/Imaging
MIRI/MRS
NIRCam/Imaging
NIRSpec/IFUGO 1591 NIRSpec IFU: Deuterated PAHs, PAH-nitriles, and PAH Overtone and Combination Bands PI: Louis Allamandola
Co-PI: Christiaan Boersma12 25 NIRSpec/IFU GO 1611 A Chemical Census of Volatile Ices in Protostellar Envelopes PI: Klaus Pontoppidan 12 15.7 NIRCam/Imaging
NIRSpec/MOSGO 1617 The Boundary of Galaxy Formation: Constraints from the Ancient Star Formation of the Isolated, Extremely Low-Mass Galaxy Leo P PI: Kristen McQuinn 12 35.7 NIRCam/Imaging GO 1619 Dust Formation in a Primitive Environment PI: Martha Boyer 12 24.1/2.1 MIRI/Imaging
MIRI/LRS
NIRCam/ImagingGO 1678 Calibrating Billions of SPHEREx Spectra from 2.4 to 5.0 um PI: Matthew Ashby 0 12.7 NIRSpec/FS GO 1685 Uncrowding the Cepheids for an Improved Determination of the Hubble Constant PI: Adam Riess 12 24.1 NIRCam/Imaging GO 1854 It's Complicated: Disentangling the Formation Pathways of Complex Organic Molecules from Molecular Clouds to Comets. PI: Melissa McClure 12 17.7 MIRI/MRS
NIRSpec/IFUGO 1908 Constraining the Nature of the First Stellar Complexes: Globular Cluster Precursors and Population III Stellar Clusters at z~6-7 PI: Eros Vanzella 12 24.5 NIRSpec/IFU GO 1939 The Galactic Center PI: Jessica Lu 12 16.5 NIRCam/Imaging
NIRSpec/IFUGO 2045 Testing the Physical Origin of the Initial Mass Function and Circumstellar Disk Destruction with Massive Clusters at the Galactic Center PI: Matthew Hosek 12 2.6 NIRCam/Imaging GO 2074 Galactic Archaeology with Brown Dwarfs in Medium-Deep JWST Observations PI: Russell Ryan AR 2092 Unveiling Stellar Birth in a Cosmologically Common Cradle PI: Steven Longmore
Co-PI: Jens Kauffmann12 19.5 NIRCam/Imaging
MIRI/ImagingGO 2104 Mapping the Hot Gas Where an Outflow Is Launched from a Protoplanetary Disk PI: Daniel Harsono
Co-PIs: Per Bjerkeli, Lars Kristensen, Jon Ramsey, Jes Jorgensen and others*12 5.3 NIRSpec/IFU GO 2107 A JWST-HST-VLT/MUSE-ALMA Treasury of Star Formation in Nearby Galaxies PI: Janice Lee
Co-PIs: Karin Sandstrom, Adam Leroy, Eva Schinnerer, David Thilker, and others*0 106.9/10.7 MIRI/Imaging
NIRCam/ImagingGO, Treasury 2128 The First Resolved View of Individual Star Formation Across a Spiral Arm PI: Erik Rosolowsky 12 22.8/8 MIRI/Imaging GO 2143 The Turbulent Magnetized Interstellar Medium: Looking for Ambipolar Diffusion in the Pleiades PI: Francois Boulanger
Co-PI: Vincent Guillet12 11.3 NIRCam/Imaging GO 2151 Blazing the Trail of COMs from Ice to Gas PI: Yao-Lun Yang 12 24.6 MIRI/MRS GO 2155 Probing Silicate and Carbonaceous Dust and Ice in Distant Galaxies with Mid-IR Spectroscopy of Quasars with Foreground 2175 A Absorbers PI: Varsha Kulkarni 12 19.8 MIRI/MRS GO 2183 Illuminating the Dust Properties in the Diffuse ISM with JWST PI: Sascha Zeegers 12 31 MIRI/MRS
NIRCam/GTSGO 2221 Star Formation along the Galactic Dust Ridge: The Brick and Cloud C PI: Adam Ginsburg
Co-PI: Alyssa Bulatek12 8.6/1.6 NIRCam/Imaging
MIRI/ImagingGO 2317 Initial Mass Function in the Lowest Metallicity Protocluster in the Galaxy PI: Yu Cheng
Co-PIs: Morten Andersen, Jonathan Tan, Ruben Fedriani, and Massimo Robberto12 2.8 NIRCam/Imaging GO 2331 Unveiling Grain Growth in Very Dense Galactic Cores PI: Roberta Paladini
Co-PI: Alberto Noriega-Crespo12 60 MIRI/MRS GO 2352 Wide Binary Stars in Nearby Dwarf Galaxies: A Novel Probe of Dark Matter on Subgalactic Scales PI: Matthew Walker AR 2402 Opening Pandora's Box: Revealing the Hidden Content of a Forming Super Star Cluster PI: Jean Turner 12 2.5 MIRI/MRS GO 2433 Imaging the Disk-halo Boundary Layer: PAH Emission as a Probe of the Energetics and Physics of Interstellar Thick Disks PI: Jay Howk 12 16.1 GO 2441 An Investigation of Claimed Silicate Dust Crystallinity in a z=0.9 Spiral Galaxy PI: Monique Aller 12 11.3 MIRI/MRS GO 2459 Completing the Puzzle of Interstellar Dust Grain Compositions: Combining Extinction, Depletion, and Molecular Hydrogen Measurements PI: Marjorie Decleir 12 16.9 NIRCam/GTS
MIRI/MRSGO 2491 Low-mass Star Formation in the Inner Parsec of Our Galaxy PI: Nadeen Sabha 12 11.6 MIRI/MRS GO 2521 The First Ever Low Metallicity PDR Benchmark PI: Karin Sandstrom
Co-PI: Mark Wolfire12 16 MIRI/MRS
NIRSpec/IFUGO 2526 Density Structure and Fragmentation Manner of Infrared Dark Filaments PI: Philippe Andre
Co-PI: Michael Mattern12 23.5 MIRI/Imaging GO 2560 Solving the Globular Clusters Multiple Population Enigma through JWST PI: Anna Marino 12 19/13 NIRSpec/MOS GO 2609 Searching for the Alpha-Abundance Bimodality in the M31 Disk PI: David Nidever
Co-PIs: Karoline Gilbert and Erik Tollerud12 14.9 NIRCam/Imaging
NIRSpec/MOSGO 2662 NGC 602 in the SMC, As Seen by Webb – Progressive Star Formation under Extraordinary Conditions? PI: Peter Zeidler 12 12.3/1.4 NIRCam/Imaging
MIRI/ImagingGO 2677 Mapping the Aromatic Smoke from the Superwind of the Archetypal Starburst M82 PI: Aigen Li 12 10.2 NIRSpec/MOS GO -
ID Program Title PI & Co-PIs Exclusive Access Period (months) Prime/ Parallel Time (hours) Instrument/ Mode Type 1554 Nebular Line Diagnostics in a Merger at Cosmic Dawn PI: Roberto Decarli 12 7.8 NIRSpec/IFU GO 1670 Closing in on the Launching Sites of AGN Outflows PI: Thomas Shimizu 12 34 MIRI/MRS GO 1717 Feedback around Supermassive Black Holes in Dusty Nuclei PI: Vivian U 0 27.6 MIRI/MRS GO 1760 First Accreting Black Hole Candidates: Infrared-dropout Heavily Obscured X-ray AGNs PI: Hyewon Suh 12 23.6 NIRSpec/FS
MIRI/LRSGO 1764 A Comprehensive JWST View of the Most Distant Quasars Deep into the Epoch of Reionization PI: Xiaohui Fan
Co-PIs: Jinyi Yang and Eduardo Banados12 65.5/8.6 NIRCam/Imaging
MIRI/Imaging
NIRSpec/FS
NIRSpec/IFU
MIRI/MRSGO 1813 Unveiling Stellar Light from Host Galaxies of z~6 Quasars PI: Madeline Marshall 12 15.9 NIRCam/Imaging GO 1875 Kinetic and Chemical Feedback in Radio-Quiet AGN as a Driver of the Galaxy Evolution – Revealed in ESO 420-G13 PI: Juan Fernandez Ontiveros 12 4 MIRI/MRS GO 1928 Blowing Star Formation Away: Unraveling Molecular Wnds in AGN PI: Rogemar Riffel
Co-PI: Nadia Zakamska12 16.2 NIRSpec/IFU
MIRI/MRSGO 1964 The Role of Radio AGN Feedback in Massive Galaxies at z = 4 - 6 PI: Roderik Overzier
Co-PI: Aayush Saxena12 23.8 NIRSpec/IFU GO 1967 A Complete Census of Supermassive Black Holes and Host Galaxies at z=6 PI: Masafusa Onoue
Co-PIs: Yoshiki Matsuoka, Takuma Izumi, John Silverman, and Xuheng Ding12 49.5 NIRSpec/FS
NIRCam/ImagingGO 1970 Zooming into the Monster's Mouth: Tracing Feedback from Their Hosts to Circumgalactic Medium in z=3.5 Radio-loud AGN PI: Wuji Wang 12 24.5 NIRSpec/IFU GO 1983 Uncovering Intermediate Mass Black Holes with JWST: Pushing the Frontier PI: Shobita Satyapal 12 11.2 NIRSpec/IFU GO 2004 Pressure Gradients of the Molecular Gas and Their Role in Cloud Stability in Massive Outflows Driven by Black Hole Jets PI: Kalliopi Dasyra 12 5.6 MIRI/MRS GO 2016 Revealing Low Luminosity Active Galactic Nuclei (ReveaLLAGN) PI: Anil Seth 12 31.9 NIRSpec/IFU
MIRI/MRSGO 2028 Mapping a Distant Protocluster Anchored by a Luminous Quasar in the Epoch of Reionization PI: Feige Wang
Co-PI: Jinyi Yang12 16.3/5.8 NIRSpec/MOS
NIRSpec/IFUGO 2057 A JWST Study of the Link Between Supermassive Black Holes and Galaxies at Cosmic Noon PI: Yue Shen
Co-PI: Jennifer Li12 22.4 NIRCam/Imaging
NIRSpec/IFUGO 2064 Dust in the Wind: Testing a New Paradigm for the Nature of AGN Feedback PI: David Rosario
Co-PIs: Sebastian Hoenig and Leonard Burtscher12 19.3 MIRI/Imaging GO 2075 The Ultra Violet Output of Sgr A* PI: Chi-kwan Chan
Co-PI: Andras Gaspar12 10.4 MIRI/MRS GO 2080 Exploration of the Nuclear Jet Impact on the Interstellar Medium in Seyfert Galaxy NGC 4258 PI: Jason Glenn 6 24 NIRCam/Imaging GO 2108 Constraining the Seeding and Growth of First Black Holes via Observable Signatures from the Early Universe PI: L. Y. Aaron Yung
Co-PI: Jonathan GardnerAR 2177 A Missing Piece of the Puzzle: The Warm Molecular Phase of AGN-driven Outflows at Cosmic Noon PI: Vincenzo Mainieri 12 13.1 MIRI/MRS GO 2228 Probing the M87 Supermassive Black Hole with Parsec-Scale Stellar Dynamics PI: Jonelle Walsh 12 9.9 NIRSpec/IFU GO 2235 Imaging the Shadow of a Black Hole through Sgr A* Monitoring PI: Farhad Yusef-Zadeh 12 24.9 NIRCam/Imaging GO 2249 Monster in the Early Universe: Unveiling the Nature of a Dust Reddened Quasar Hosting a Ten-Billion Solar Mass Black Hole at z=7.1 PI: Jinyi Yang
Co-PI: Feige Wang12 5.5 NIRSpec/IFU
MIRI/ImagingGO 2446 Illuminating the AGN-Galaxy Connection with JWST: AGN Host Demographics During the Era of Galaxy Assembly PI: Dale Kocevski AR 2547 Quasar Feedback in Action: The Multiphase and Multiscale Outflow of the Most Luminous Quasar in the Local Universe PI: Sylvain Veilleux 12 8.7 MIRI/MRS
NIRSpec/IFUGO 2554 AGN Feeding and Feedback in NGC 4151 PI: Francisco Mueller-Sanchez AR 2654 Kpc-scale Dual Supermassive Black Holes and Their Impact on Galaxy Formation at Cosmic Noon PI: Yuzo Ishikawa
Co-PIs: Yue Shen and Xin Liu12 16.4 NIRSpec/IFU
MIRI/MRSGO 2701 Unveiling the Nature of CID-42. The Best Candidate for a Gravitational Wave Recoiling Supermassive Black Hole PI: Francisco Mueller-Sanchez 12 6.7 NIRSpec/IFU GO
Abbreviations:
BOTS = Bright Object Time-series
FS = Fixed Slit
GTS = Grism Time Series
IFU = Integral Field Unit
LRS = Low Resolution Spectroscopy
MOS = Multi-object Spectroscopy
MRS = Medium Resolution Spectroscopy
SOSS = Single-object Slitless Spectroscopy
TSO = Time Series Observation
WFSS = Wide Field Slitless Spectroscopy
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