Program Number | Principal Investigator | Program Title |
---|---|---|
13291 | Masao Hayashi, National Astronomical Observatory of Japan (NAOJ) | Resolving internal structures of the progenitors of early-type galaxies in a vigorously forming cluster at z=2.5 |
13297 | Giampaolo Piotto, Universita degli Studi di Padova | The HST Legacy Survey of Galactic Globular Clusters: Shedding UV Light on Their Populations and Formation |
13305 | Carolin Villforth, University of St. Andrews | Do mergers matter? Testing AGN triggering mechanisms from Seyferts to Quasars |
13330 | Bradley M Peterson, The Ohio State University | Mapping the AGN Broad Line Region by Reverberation |
13332 | Seth Redfield, Wesleyan University | A SNAP Survey of the Local Interstellar Medium: New NUV Observations of Stars with Archived FUV Observations |
13352 | Matthew A. Malkan, University of California - Los Angeles | WFC3 Infrared Spectroscopic Parallel Survey WISP: A Survey of Star Formation Across Cosmic Time |
13360 | Saurabh W. Jha, Rutgers the State University of New Jersey | The Peculiar Type Ia Supernova 2012Z: A Massive Star Progenitor? |
13366 | Roelof S. de Jong, Leibniz-Institut fur Astrophysik Potsdam | The vertical disk structure of spiral galaxies and the origin of their thick disks |
13386 | Steven A. Rodney, The Johns Hopkins University | Frontier Field Supernova Search |
13397 | Luciana C. Bianchi, The Johns Hopkins University | Understanding post-AGB Evolution: Snapshot UV spectroscopy of Hot White Dwarfs |
13398 | Christopher W. Churchill, New Mexico State University | A Breakaway from Incremental Science: Full Characterization of the z<1 CGM and Testing Galaxy Evolution Theory |
13412 | Tim Schrabback, Universitat Bonn, Argelander Institute for Astronomy | An ACS Snapshot Survey of the Most Massive Distant Galaxy Clusters in the South Pole Telescope Sunyaev-Zel'dovich Survey |
13425 | Hua Feng, Tsinghua University | Multiwavelength Test For A Standard Accretion Disk Around An Intermediate Mass Black Hole Candidate |
13444 | Bart P. Wakker, University of Wisconsin - Madison | Constraining the size of intergalactic clouds with QSO pairs |
13445 | Joshua S. Bloom, University of California - Berkeley | Absolute Calibration of the Extragalactic Mira Period-Luminosity Relation |
13448 | Andrew J. Fox, Space Telescope Science Institute - ESA | The Closest Galactic Wind: UV Properties of the Milky Way's Nuclear Outflow |
13456 | Michael McDonald, Massachusetts Institute of Technology | Searching for 300, 000 Degree Gas in the Core of the Phoenix Cluster with HST-COS |
13460 | Sylvain Veilleux, University of Maryland | The Remarkable Ultraviolet Spectrum of Mrk 231 |
13463 | Kailash C. Sahu, Space Telescope Science Institute | Detecting and Measuring the Masses of Isolated Black Holes and Neutron Stars through Astrometric Microlensing |
13472 | Wendy L. Freedman, Carnegie Institution of Washington | The Hubble Constant to 1%? STAGE 4: Calibrating the RR Lyrae PL relation at H-Band using HST and Gaia Parallax Stars |
13483 | Goeran Oestlin, Stockholm University | eLARS - extending the Lyman Alpha Reference Sample |
13495 | Jennifer Lotz, Space Telescope Science Institute | HST Frontier Fields - Observations of Abell 2744 |
13513 | Julia Comerford, University of Colorado at Boulder | A Pilot Search for Spatially Offset AGN in Galaxy Merger Remnants |
13515 | Breanna Binder, University of Washington | The Effect of Intermediate-Luminosity Transients on the X-ray Luminosity Functions of Spiral Disks |
GO 13297: The HST Legacy Survey of Galactic Globular Clusters: Shedding UV Light on Their Populations and Formation
GO 13330: Mapping the AGN Broad Line Region by Reverberation
Simulations of the appearance and velocity structure within an AGN disk (see Keith Horne's web page). |
Active galaxies (AGNs) are generally luminous systems, characterised by the presence of strong nuclear emission lines of numerous species including H, He I, He II, and Fe, Ca, O, C and S over a range of ionisations. These features originate from gas clouds in the nuclear regions, with the energy supplied through accretion onto a central massive black hole. The high-temperature, rapidly-rotating gas clouds nearest the central engine are responsible for producing broad emission lines (hence, the "Broad Line Region"). The structure of the BLR can be discerned using a technique known as reverberation mapping: variations in the accretion rate lead to fluctuations in luminosity; those variations lead, in turn, to variations in the photoionisation of the BLR, and corresponding changes in spectral line strengths and velocities; monitoring those changes, and correlating them with the photometric variability of the central source, measures the light travel time from nucleus to BLR gas, and hence maps the size of the BLR. The present prorgam will use the Cosmic Origins Spectrograph to undertake systematic monitoring of the nuclear regions of the Seyfert I galaxy, NGC 5548. The first observations were taken on February 2nd 2014 and the program will run through July at a cadence of one orbit per day for 179 days. |
GO 13366: The vertical disk structure of spiral galaxies and the origin of their thick disks
GO 13444: Constraining the size of intergalactic clouds with QSO pairs