16821( 3) - 18-Apr-2022 19:14:41 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 16821 Version: 3 Check-in Time: 18-Apr-2022 19:14:41 STScI Edit Number: 2 Title ULLYSES LMC O6 Bright Giants - STIS ------------------------------------------------------------------------------------ Type Cycle GO/DD 29 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Julia Christine Roman-Duval Space Telescope Science Institute Y CoI: Dr. Kenneth Sembach Space Telescope Science Institute N CoI: Dr. TalaWanda R. Monroe Space Telescope Science Institute Y CoI: Joanna Taylor Space Telescope Science Institute N CoI: Dr. Travis C Fischer Space Telescope Science Institute - ESA N CoI: Dr. William J. Fischer Space Telescope Science Institute N CoI: Dr. Alexander W. Fullerton Space Telescope Science Institute Y CoI: Dr. Alessandra Aloisi Space Telescope Science Institute N CoI: Christopher Britt Space Telescope Science Institute N CoI: Dr. Thomas M. Brown Space Telescope Science Institute N CoI: Ivo Busko Space Telescope Science Institute N CoI: Dr. Joleen Carlberg Space Telescope Science Institute N CoI: Dr. Gisella De Rosa Space Telescope Science Institute N CoI: Elaine M Frazer Space Telescope Science Institute N CoI: Dr. Svea S Hernandez Space Telescope Science Institute - ESA - N JWST CoI: Dr. Alec S. Hirschauer Space Telescope Science Institute N CoI: Dr. Bethan Lesley James Space Telescope Science Institute - ESA - N JWST CoI: Robert Jedrzejewski Space Telescope Science Institute N CoI: Sean Lockwood Space Telescope Science Institute N CoI: Dr. Cristina Oliveira Space Telescope Science Institute N CoI: Rachel Plesha Space Telescope Science Institute N CoI: Dr. Charles R. Proffitt Space Telescope Science Institute N CoI: Dr. I. Neill Reid Space Telescope Science Institute N CoI: Dr. W. Van Dyke Dixon Space Telescope Science Institute N CoI: Dr. David J. Sahnow Space Telescope Science Institute N CoI: Dr. Ravi Sankrit Space Telescope Science Institute N CoI: Dr. Richard Shaw Space Telescope Science Institute N CoI: Dr. Linda J. Smith Space Telescope Science Institute N CoI: Dr. Sangmo Tony Sohn Space Telescope Science Institute N CoI: Dr. Debopam Som Space Telescope Science Institute N CoI: Dr. Leonardo Ubeda Space Telescope Science Institute N CoI: Dr. Daniel E. Welty Space Telescope Science Institute N ------------------------------------------------------------------------------------ Abstract The Space Telescope Science Institute (STScI) Director has decided to devote up to 1000 orbits of Director's Discretionary time in observing Cycles 27-29 to a new Hubble Ultraviolet Legacy program focused on star formation and associated stellar physics. This new program, ULLYSES (UV Legacy Library of Young Stars as Essential Standards), will provide a UV spectroscopic reference sample of young (< 10 Myr) high- and low-mass stars. It will target over ~150 OB stars in the Magellanic Clouds 16821( 3) - 18-Apr-2022 19:14:41 - [ 2] and lower metallicity galaxies in the Local Group, and ~40 T Tauri stars and brown dwarfs in the Milky Way. In addition, ULLYSES will monitor 4 typical T Tauri stars over different rotational phases through at least three rotation periods, and over timescales of months to years. The resulting library will provide template spectra of massive stars at metallicities substantially below the well studied, while the low mass sample will cover a wide range of ages, accretion rates, and masses, including objects down to well below 0.5 M_sun. The legacy of this large UV dataset on the first 10 Myr of stellar evolution will be enhanced by complementary datasets obtained by the scientific community. In addition to the core goals of the program related to stellar astrophysics of low and high mass stars, this data will also enable exciting science in the fields of ISM, CGM, jets, and exoplanets. ULLYSES will be modeled after the Frontier Fields program: all data obtained will be non-proprietary. The implementation team at STScI is developing high-level science data products and a sophisticated database and website for disseminating data from the ULLYSES program and ancillary datasets for the ULLYSES target sample from space and ground-based facilities. ------------------------------------------------------------------------------------ Observations Description ------------------------ This proposal includes a subset of the massive ULLYSES stars being observed in the Magellanic clouds. Depending on target brightness, the main FUV spectral range will generally use either the STIS E140M setting or the combination of the COS c1291 + c1611 settings. Sufficiently bright stars without good FUSE data in the archive will also be observed with the COS c1096 setting to provide coverage at shorter wavelengths. Where time permits, stars of type O9 or later will also be observed with STIS E230M/1978, while for supergiants of spectral type B5 or later E230M/2707 may also be included. Where possible, targets of a given spectral type were selected to span both a range in extinction and in rotation rates to support a variety of stellar and ISM studies. Signal-to-noise requirements used to determine the desired exposures times were defined as follows: COS/G130M/c1096: 20 / nine-pixel resel at 1080 A COS/G130M/c1291: 30 / six-pixel resel at 1150 A COS/G160M/c1611: 30 / six-pixel resel at 1590 A COS/G185M/c1953: 30 / three-pixel resel at 1860 A COS/G185M/c1986: 30 / three-pixel resel at 1980 A STIS/E140M/c1425: 20 / two-pixel resel at 1200 A STIS/E230M/c1978: 20 / two-pixel resel at 1800 A STIS/E230M/c2707: 20 / two-pixel resel at 2800 A The actual implemented exposure times may be adjusted to efficiently use HST orbits, but should always provide at least 80% of the desired time as defined by the above requirements. Additional details about the scientific motivation and technical implementation strategy of the ULLYSES observations can be found at http://www.stsci.edu/stsci-research/research-topics-and-programs/ullyses. The ULLYSES program is based on the recommendations of a working group led by Sally Oey; the full text of that group's report can be found at http://www.stsci.edu/files/live/sites/www/files/home/stsci-research/research-to 16821( 3) - 18-Apr-2022 19:14:41 - [ 3] pics-and-programs/ullyses/_documents/HSTUV-report-ULLYSES.pdf. ------------------------------------------------------------------------------------ 16821( 3) - 18-Apr-2022 19:14:41 - [ 4] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 SK-66D100 STAR, SUPERGIANT O, OF RA=05H27M45.4515S +/- 0", J2000 V = 13.26 SpT=O6 II(f); E(B-V)=0.06; DEC=-66D55'15.29" +/- 0" U=11.99; B=13.05; V=13.26; F1160=1.150e-12; F1360=7.030e-13; F1700=4.730e-13; F2200=2.450e-13 Reference Frame: ICRS Extended: NO Comments: SK-66D100 : SK -66 100 Previous name : SK-66 100 Input file: ULLYSES_Cycle29_MassiveStar_ProgramInput_v5.csv SpT = O6 II(f) Coordinate pedigree: Gaia DR2 Calculation performed 2021-10-25T01:00:04, v0.9 ----------------------------------------------------------- -------------------- tstatus; SK-66D100; P/STIS approved for submission; S/ins not started; P/LS 25/02/22; S/xx DD/MM/YY tcheck; APT/SIMBAD target names: ; SK -66 100 'SK -66 100'... aka 2MASS J05274546-6655152, Gaia DR2 ID 4660223379469868416 tcheck; Target info verification status?; OK... SIMBAD gives SpT as O6II(f) and this is used in recent papers tcheck; Coordinates & P.M. verified, epoch checked?; yes - used PMs given in SNAP 16230 for epoch 2015.5. Coords are same. tcheck; Adopted SED compared to Observations?; OK - FUSE match is good but STIS/G230LB and G430L and UBV are 30% brighter than SED Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 2.706479012356107E-4 5.705268658050937E-4 0 ------------------------------------------------------------------------------------------------------------------------------------ 16821( 3) - 18-Apr-2022 19:14:41 - [ 5] Visit: 1S (SK-66D100-STIS) Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: vstatus; 1S; SK-66D100; P/STIS approved for submission; P/LS 28/01/22 ; intrev: complete ; P/JRD 18/04/22 vcheck; Enter targ name & Inst. & Resp. Sci.; SK -66 100 'SK -66 100'; STIS; LS vcheck; ETC numbers entered in APT?; completed vcheck; Any screening violations?; None vcheck; S/N ETC calcs done & documented?; Yes ... SED gives exposure time of 7948 s for S/N of 20 but S/N plot shows S/N=25. Exposure time used in APT is 5180 s and this gives a S/N of 20 in S/N plot vcheck; Field images checked & saved?; Yes SK-66D100_DSS.png and SK-66D100_2MASS.png vcheck; Selected ACQ strategy?; STIS F28X50LP 2.1 s (same as 16230 - ACQ image looks good) vcheck; Possible ACQ or Sci spoilers?; None vcheck; Field BOT clear?; Yes vcheck; Visual BOT check for stars not in catalog?; Yes vcheck; Orbit packing finalized?; 2 orbits, total exp is 4736 s vcheck; Buffer times optimized?; Yes vcheck; Verify visit grouping correct; Yes vcheck; Is visit ready for int. review?; Yes Allocated STIS orbits = 2 Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SK-66D100 STIS/CCD ACQ F28X50LP MIRROR 1 2.1 S (2.1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SK-66D100 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 WAVECAL=NO, BUFFER-TIME=300 1 5180.2 S -MAMA G see below (2188 S) Comments: rn(PoWR-OB-new(PoWR_39000_3.80_m7.00_Z0.50.fi ts, lmc-ob-i 39-38, Z=0.500 solar, Teff=39000, log_lum=5.54, log_g=3.80, log_mdot=-7.00) (extinction lmcavg=0.060), flux1360 +- 2.0A flux=7e-13 Flam); stis, fuvmama, e140m, c1425, 0.2x0.2, mjd#59670 From file ULLYSES_Cycle29_MassiveStar_ProgramInput_v5.c sv Spectral type: O6 II(f) SED = SK-66D100_STIS_E140M_c1425_sed.fits For exptime=5180.2 s, spectral region: 1200.0 +- 0.5 A achieves SNR=20.0/resel global countrate (brightest segment): 4149.2 cts/s/segment brightest pixel: 0.057 cts/s/pix at 1243.5 A Calculation performed 2021-10-25T01:00:12, v0.9 16821( 3) - 18-Apr-2022 19:14:41 - [ 6] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ 3 WAVE STIS/FUV ACCUM 0.2X0.2 E140M 1425 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 4 SK-66D100 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 WAVECAL=NO, BUFFER-TIME=300 1 5180.2 S -MAMA G see below (2548 S) Comments: rn(PoWR-OB-new(PoWR_39000_3.80_m7.00_Z0.50.fi ts, lmc-ob-i 39-38, Z=0.500 solar, Teff=39000, log_lum=5.54, log_g=3.80, log_mdot=-7.00) (extinction lmcavg=0.060), flux1360 +- 2.0A flux=7e-13 Flam); stis, fuvmama, e140m, c1425, 0.2x0.2, mjd#59670 From file ULLYSES_Cycle29_MassiveStar_ProgramInput_v5.c sv Spectral type: O6 II(f) SED = SK-66D100_STIS_E140M_c1425_sed.fits For exptime=5180.2 s, spectral region: 1200.0 +- 0.5 A achieves SNR=20.0/resel global countrate (brightest segment): 4149.2 cts/s/segment brightest pixel: 0.057 cts/s/pix at 1243.5 A Calculation performed 2021-10-25T01:00:12, v0.9 ------------------------------------------------------------------------------------------------------------------------------------ 5 WAVE STIS/FUV ACCUM 0.2X0.2 E140M 1425 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SK-66D100 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A SK-66D100 2 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 1 2188.0 S -MAMA G WAVE 3 STIS/FUV ACCUM 0.2X0.2 E140M 1425 none none none none 1 N/A -MAMA SK-66D100 4 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 2 2548.0 S -MAMA G WAVE 5 STIS/FUV ACCUM 0.2X0.2 E140M 1425 none none none none 2 N/A -MAMA 16821( 3) - 18-Apr-2022 19:14:41 - [ 7] Summary Form for Proposal 16821 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 0.2X0.2, F28X50LP ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/CCD, STIS/FUV-MAMA ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, ACQ, TIME-TAG ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BUFFER-TIME=300, WAVECAL=NO ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements SCHED 100% ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements E140M, MIRROR ------------------------------------------------------------------------------------------------------------------------------------ Target Names SK-66D100, WAVE ------------------------------------------------------------------------------------------------------------------------------------