ULLYSES LOW-Z

Low-Metallicity Galaxy OB Stars

The ULLYSES sample for stars in low-metallicity galaxies consists of two parts. The core sample (Table 1) includes six high-mass stars in the low-metallicity galaxies Sextans A and NGC 3109 with spectroscopic data that is consistent with the design goals in terms of wavelength coverage and signal-to-noise. The HST UV spectroscopy for the core sample consists of new data collected during HST Cycles 27–29. Additionally, pre-imaging data was obtained of NGC 3109 and Sextans A with WFC3/UVIS (Table 3). There are no quick look figures for pre-imaging data.

The core sample is augmented by a subset of stars with purely archival data that meet many, though not necessarily all, of the project’s design goals, but nevertheless provides supplementary material that contributes directly to the scientific goals of ULLYSES. These "extra" targets and their HST UV spectroscopic material are summarized in Table 2.

In both Tables, successive columns provide:

Table 1 also contains photometry for 5 WFC3 filters (F225W, F275W, F336W, F475W, F814W) listed in units of STmag with errors on the order of 0.05-0.1mag. Simbad target names are hyperlinked to their entry in Simbad, which provides a complete list of aliases, while the ULLYSES target names are hyperlinked to the specific entry in the ULLYSES catalog. References to the source of observational information are also linked.

Four additional columns summarize the HST spectra held by MAST by providing:

Clicking anywhere in a row will also open a table that provides more detailed information about the observations in each visit.

Tables 1 and 2 contain a subset of the information accessible from the ULLYSES search form, which supports querying targets and datasets based on both observational and astrophysical parameters. The "Simbad Resolvable Name" should aid in querying specific targets in the search form. In addition to specialized search parameters, the form also:

Information for all ULLYSES targets in low-metallicity galaxies can be accessed directly via this predefined query.

Distribution of ULLYSES sources in the galaxy NGC3109 as a function of luminosity and effective temperature; that is, their distribution in a Hertzsprung-Russel diagram for the host galaxy. Representative evolutionary tracks are plotted to indicate approximately the mass and age of the stars in the ULLYSES sample.

Figure 1: The figure above shows the distribution of stars in the ULLYSES sample in the Hertzsprung-Russell diagram for the galaxy NGC 3109. Values of the effective temperature (Teff) and luminosity (L) determined by model atmosphere analyses are used whenever possible. Otherwise, values of these parameters are adopted from the spectral-type calibration of Doran et al. (2013, A&A, 558, A134). The parameters of the primary star are plotted for stars known to be in binary systems.

Fiducial evolutionary tracks from the model grid published by Szécsi et al. (2022, A&A, 658, A125) are also shown for a range of initial masses. These models were computed for single stars with a metallicity of Z/Z=0.10. Time steps corresponding to 0.5 million years are highlighted along individual tracks, and five dashed lines trace isochrones for intervals of 1 - 5 million years (from left to right).

Distribution of ULLYSES sources in the galaxy Sextans A as a function of luminosity and effective temperature; that is, their distribution in a Hertzsprung-Russel diagram for the host galaxy. Representative evolutionary tracks are plotted to indicate approximately the mass and age of the stars in the ULLYSES sample.

Figure 2: The figure above shows the distribution of stars in the ULLYSES sample in the Hertzsprung-Russell diagram for the galaxy Sextans A. Values of the effective temperature (Teff) and luminosity (L) determined by model atmosphere analyses are used whenever possible. Otherwise, values of these parameters are adopted from the spectral-type calibration of Doran et al. (2013, A&A, 558, A134). The parameters of the primary star are plotted for stars known to be in binary systems.

Fiducial evolutionary tracks from the model grid published by Szécsi et al. (2022, A&A, 658, A125) are also shown for a range of initial masses. These models were computed for single stars with a metallicity of Z/Z=0.10. Time steps corresponding to 0.5 million years are highlighted along individual tracks, and five dashed lines trace isochrones for intervals of 1 - 5 million years (from left to right).

Distribution of ULLYSES sources in the galaxy WLM as a function of luminosity and effective temperature; that is, their distribution in a Hertzsprung-Russel diagram for the host galaxy. Representative evolutionary tracks are plotted to indicate approximately the mass and age of the stars in the ULLYSES sample.

Figure 3: The figure above shows the distribution of stars in the ULLYSES sample in the Hertzsprung-Russell diagram for the galaxy WLM. Values of the effective temperature (Teff) and luminosity (L) determined by model atmosphere analyses are used whenever possible. Otherwise, values of these parameters are adopted from the spectral-type calibration of Doran et al. (2013, A&A, 558, A134). The parameters of the primary star are plotted for stars known to be in binary systems.

Fiducial evolutionary tracks from the model grid published by Szécsi et al. (2022, A&A, 658, A125) are also shown for a range of initial masses. These models were computed for single stars with a metallicity of Z/Z=0.10. Time steps corresponding to 0.5 million years are highlighted along individual tracks, and five dashed lines trace isochrones for intervals of 1 - 5 million years (from left to right).

Distribution of ULLYSES sources in the galaxy IC1613 as a function of luminosity and effective temperature; that is, their distribution in a Hertzsprung-Russel diagram for the host galaxy. Representative evolutionary tracks are plotted to indicate approximately the mass and age of the stars in the ULLYSES sample.

Figure 4: The figure above shows the distribution of stars in the ULLYSES sample in the Hertzsprung-Russell diagram for the galaxy IC 1613. Values of the effective temperature (Teff) and luminosity (L) determined by model atmosphere analyses are used whenever possible. Otherwise, values of these parameters are adopted from the spectral-type calibration of Doran et al. (2013, A&A, 558, A134). The parameters of the primary star are plotted for stars known to be in binary systems.

Fiducial evolutionary tracks from the model grid published by Szécsi et al. (2022, A&A, 658, A125) are also shown for a range of initial masses. These models were computed for single stars with a metallicity of Z/Z=0.20. Time steps corresponding to 0.5 million years are highlighted along individual tracks, and five dashed lines trace isochrones for intervals of 1 - 5 million years (from left to right).

Distribution of ULLYSES sources in the Magellanic Bridge as a function of luminosity and effective temperature; that is, their distribution in a Hertzsprung-Russel diagram for the host galaxy. Representative evolutionary tracks are plotted to indicate approximately the mass and age of the stars in the ULLYSES sample.

Figure 5: The figure above shows the distribution of stars in the ULLYSES sample in the Hertzsprung-Russell diagram for the Magellanic Bridge. Values of the effective temperature (Teff) and luminosity (L) determined by model atmosphere analyses are used whenever possible. Otherwise, values of these parameters are adopted from the spectral-type calibration of Doran et al. (2013, A&A, 558, A134). The parameters of the primary star are plotted for stars known to be in binary systems.

Fiducial evolutionary tracks from the model grid published by Szécsi et al. (2022, A&A, 658, A125) are also shown for a range of initial masses. These models were computed for single stars with a metallicity of Z/Z=0.20. Time steps corresponding to 0.5 million years are highlighted along individual tracks, and five dashed lines trace isochrones for intervals of 1 - 5 million years (from left to right).

Distribution of ULLYSES sources in the galaxy Leo A as a function of luminosity and effective temperature; that is, their distribution in a Hertzsprung-Russel diagram for the host galaxy. Representative evolutionary tracks are plotted to indicate approximately the mass and age of the stars in the ULLYSES sample.

Figure 6: The figure above shows the distribution of stars in the ULLYSES sample in the Hertzsprung-Russell diagram for the galaxy Leo A. Values of the effective temperature (Teff) and luminosity (L) determined by model atmosphere analyses are used whenever possible. Otherwise, values of these parameters are adopted from the spectral-type calibration of Doran et al. (2013, A&A, 558, A134). The parameters of the primary star are plotted for stars known to be in binary systems.

Fiducial evolutionary tracks from the model grid published by Szécsi et al. (2022, A&A, 658, A125) are also shown for a range of initial masses. These models were computed for single stars with a metallicity of Z/Z=0.04. Time steps corresponding to 0.5 million years are highlighted along individual tracks, and five dashed lines trace isochrones for intervals of 1 - 5 million years (from left to right).

Distribution of ULLYSES sources in the galaxy Leo P as a function of luminosity and effective temperature; that is, their distribution in a Hertzsprung-Russel diagram for the host galaxy. Representative evolutionary tracks are plotted to indicate approximately the mass and age of the stars in the ULLYSES sample.

Figure 7: The figure above shows the distribution of stars in the ULLYSES sample in the Hertzsprung-Russell diagram for the galaxy Leo P. Values of the effective temperature (Teff) and luminosity (L) determined by model atmosphere analyses are used whenever possible. Otherwise, values of these parameters are adopted from the spectral-type calibration of Doran et al. (2013, A&A, 558, A134). The parameters of the primary star are plotted for stars known to be in binary systems.

Fiducial evolutionary tracks from the model grid published by Szécsi et al. (2022, A&A, 658, A125) are also shown for a range of initial masses. These models were computed for single stars with a metallicity of Z/Z=0.04. Time steps corresponding to 0.5 million years are highlighted along individual tracks, and five dashed lines trace isochrones for intervals of 1 - 5 million years (from left to right).

Table 1: ULLYSES Core Sample

Quick Look Plot Simbad Resolvable Name ULLYSES Target Name APT Target Name RA(J2016) DEC(J2016) SpType V E(B-V) F225W F275W F336W F475W F814W Proposal ID Science Configuration First Observation Date Overall Status
Quick Look [EBU2007] 7 NGC 3109 EBU 07 NGC-3109-EBU-07 10h 02m 54.72s -26d 08m 59.66s B0-1 Ia 18.69 0.09 16.25 16.62 17.23 18.27 20.12 16511 COS/FUV Dec 03 2021 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
16511 1C Failed COS/FUV: G140L/800 -
16511 AC Completed COS/FUV: G140L/800 Dec 03 2021
Quick Look [EBU2007] 20 NGC 3109 EBU 20 NGC-3109-EBU-20 10h 03m 03.30s -26d 09m 21.34s O8 I 19.33 17.04 17.35 17.90 18.91 20.67 16511 COS/FUV Nov 29 2021 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
16511 2C Failed COS/FUV: G140L/800 -
16511 3C Failed COS/FUV: G140L/800 -
16511 BC Completed COS/FUV: G140L/800 Nov 29 2021
16511 CC Completed COS/FUV: G140L/800 Dec 01 2021
Quick Look [EBU2007] 34 NGC 3109 EBU 34 NGC-3109-EBU-34 10h 03m 14.31s -26d 09m 17.90s O8 I(f) 19.61 16.99 17.40 18.03 19.16 21.07 16511 COS/FUV Nov 30 2021 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
16511 4C Failed COS/FUV: G140L/800 -
16511 DC Completed COS/FUV: G140L/800 Nov 30 2021
Quick Look [VPW98] 1805 Sextans A LGN s004 SEXTANS-A-LGN-S004, SEXTANS-A-GHN-S4 10h 10m 57.89s -04d 43m 10.20s O5 III 20.92 0.0 18.05 18.45 19.17 20.37 22.38 16930 COS/FUV Dec 06 2022 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
16930 2C Completed COS/FUV: G140L/800 Dec 06 2022
Quick Look [VPW98] 1670 Sextans A LGN s003 SEXTANS-A-LGN-S003, SEXTANS-A-GHN-S2 10h 10m 58.58s -04d 43m 28.94s O3-5 Vz 20.8 0.19 18.49 18.84 19.41 20.47 20.08 16930 COS/FUV Oct 26 2022 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
16930 1C Completed COS/FUV: G140L/800 Oct 26 2022
16930 1D Completed COS/FUV: G140L/800 Dec 05 2022
16930 1E Completed COS/FUV: G140L/800 Dec 10 2022
Quick Look [VPW98] 412 Sextans A LGN s071 SEXTANS-A-LGN-S071, SEXTANS-A-GHN-S8 10h 11m 05.68s -04d 42m 13.63s B1 I 19.7 0.0 17.38 17.71 18.30 19.28 21.16 16930 COS/FUV Dec 08 2022 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
16930 3C Completed COS/FUV: G140L/800 Dec 08 2022
16930 3D Completed COS/FUV: G140L/800 Dec 11 2022

Table 2: Additional Archival Stars Included in the ULLYSES sample

Quick Look Plot Simbad Resolvable Name ULLYSES Target Name APT Target Name RA(J2016) DEC(J2016) SpType V E(B-V) Proposal ID Science Configuration First Observation Date Overall Status
Quick Look [BPU2006] A 11 WLM BPU A 11 WLM-BPU-A-11, WLM-A11 00h 01m 59.95s -15d 28m 19.58s O9.7 Ia 18.38 0.15 12867 COS/FUV Jun 13 2013 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
12867 05 Completed COS/FUV: G130M/1291/1327 Jun 13 2013
12867 06 Completed COS/FUV: G160M/1577/1589/1611/1623 Jun 14 2013
Quick Look [BPU2006] A 15 WLM BPU A 15 WLM-BPU-A-15, WLM 00h 02m 00.53s -15d 29m 52.41s O7 V((f)) 20.25 0.0 15967 COS/FUV Jun 20 2020 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
15967 01 Completed COS/FUV: G130M/1291 Jun 20 2020
15967 02 Completed COS/FUV: G160M/1600 Jun 24 2020
15967 03 Completed COS/FUV: G160M/1600 Jun 26 2020
Quick Look [BUG2007] C 10 IC1613 BUG C10 IC1613-BUG-C10, IC1613-C10 01h 04m 43.38s +02d 10m 22.38s B1.5 Ib 18.82 15156 COS/FUV Nov 25 2018 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
15156 1A Completed COS/FUV: G130M/1291 Dec 14 2018
15156 1B Failed COS/FUV: G160M/1577 Nov 25 2018
15156 5C Completed COS/FUV: G160M/1577 Dec 24 2018
Quick Look [BUG2007] B 11 IC1613 BUG B11 IC1613-BUG-B11, IC1613-B11 01h 04m 43.83s +02d 06m 45.16s O9.5 I 18.62 0.13 12867, 15880 COS/FUV Sep 22 2013 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
12867 03 Completed COS/FUV: G130M/1291/1327 Sep 22 2013
12867 04 Completed COS/FUV: G160M/1577/1589/1611/1623 Sep 22 2013
15880 01 Completed COS/FUV: G130M/1291 Jan 23 2020
Quick Look [BUG2007] B 4 IC1613 BUG B4 IC1613-BUG-B4, IC1613-010460-020916 01h 04m 59.56s +02d 09m 16.21s B1.5 Ia 18.23 0.05 12587 COS/FUV Jul 15 2012 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
12587 09 Completed COS/FUV: G140L/1105 Jul 15 2012
Quick Look [GHV2009] Star 61331 IC1613 GHV 61331 IC1613-GHV-STAR-61331, IC1613-61331 01h 05m 00.16s +02d 09m 13.19s O9.7 II 19.14 0.05 15880 COS/FUV Jun 19 2020 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
15880 10 Completed COS/FUV: G130M/1291/1309 Jun 19 2020
Quick Look [GHV2009] Star 62024 IC1613 GHV 62024 IC1613-GHV-STAR-62024, IC1613-010501-020849, IC1613-62024 01h 05m 00.65s +02d 08m 49.35s O6.5 IIIf 19.6 0.11 12587, 15880 COS/FUV Nov 17 2012 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
12587 04 Completed COS/FUV: G140L/1105 Nov 17 2012
15880 07 Completed COS/FUV: G130M/1291/1309 Jun 27 2020
15880 08 Completed COS/FUV: G130M/1291/1309 Jul 01 2020
Quick Look [BUG2007] A 10 IC1613 BUG A10 IC1613-BUG-A10, IC1613-010501-021041 01h 05m 00.92s +02d 10m 41.59s B1 Ia 17.42 0.08 12587 COS/FUV Jul 19 2012 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
12587 07 Completed COS/FUV: G140L/1105 Jul 19 2012
Quick Look [BUG2007] B 7 IC1613 BUG B7 IC1613-BUG-B7, IC1613-010502-020805 01h 05m 01.98s +02d 08m 05.16s O9 II 18.96 0.06 12587, 15156 COS/FUV Nov 11 2012 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
12587 06 Completed COS/FUV: G140L/1105 Nov 11 2012
15156 2A Completed COS/FUV: G130M/1291 Nov 23 2018
15156 2B Completed COS/FUV: G160M/1577 Nov 23 2018
Quick Look [GHV2009] Star 64066 IC1613 GHV 64066 IC1613-GHV-STAR-64066, IC1613-64066 01h 05m 02.08s +02d 09m 28.17s O3 III((f)) 19.03 0.07 15880 COS/FUV Jun 20 2020 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
15880 04 Failed COS/FUV: G130M/1291/1309 Jun 20 2020
15880 24 Completed COS/FUV: G130M/1291/1309 Aug 01 2020
Quick Look [BUG2007] B 2 IC1613 BUG B2 IC1613-BUG-B2, IC1613-010503-021004, IC1613-B2 01h 05m 03.07s +02d 10m 04.64s O7.5 III-V((f)) 19.62 0.07 12587, 15880 COS/FUV Nov 03 2012 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
12587 02 Completed COS/FUV: G140L/1105 Nov 03 2012
12587 03 Completed COS/FUV: G140L/1105 Nov 10 2012
15880 05 Completed COS/FUV: G130M/1291/1309 Jun 25 2020
15880 06 Completed COS/FUV: G130M/1291/1309 Jun 26 2020
Quick Look [GHV2009] Star 67559 IC1613 GHV 67559 IC1613-GHV-STAR-67559, IC1613-010505-020923, IC1613-67559 01h 05m 04.77s +02d 09m 23.28s O8.5 III((f)) 19.24 0.07 12587, 15880 COS/FUV Nov 12 2012 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
12587 05 Completed COS/FUV: G140L/1105 Nov 12 2012
15880 11 Failed COS/FUV: G130M/1291/1309 Jun 29 2020
15880 25 Completed COS/FUV: G130M/1309 Aug 06 2020
Quick Look [GHV2009] Star 67684 IC1613 GHV 67684 IC1613-GHV-STAR-67684, IC1613-67684 01h 05m 04.89s +02d 09m 32.67s O8.5 I 19.02 0.05 15880 COS/FUV Jun 29 2020 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
15880 09 Completed COS/FUV: G130M/1291/1309 Jun 29 2020
Quick Look [BUG2007] A 13 IC1613 BUG A13 IC1613-BUG-A13, IC1613-010506-021043, IC1613-A13 01h 05m 06.26s +02d 10m 43.26s O3-4 V((f)) 18.96 0.05 12587, 12867, 15880 COS/FUV Jul 27 2012 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
12587 01 Completed COS/FUV: G140L/1105 Jul 27 2012
12867 01 Completed COS/FUV: G130M/1291/1327 Jun 05 2013
12867 02 Completed COS/FUV: G160M/1577/1589/1611/1623 Jun 16 2013
15880 02 Completed COS/FUV: G130M/1291 Nov 18 2019
Quick Look [BUG2007] B 3 IC1613 BUG B3 IC1613-BUG-B3, IC1613-010506-020931, IC1613-B3 01h 05m 06.38s +02d 09m 31.41s B0 Ia 17.69 0.09 12587, 15880 COS/FUV Jul 19 2012 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
12587 08 Completed COS/FUV: G140L/1105 Jul 19 2012
15880 03 Completed COS/FUV: G130M/1291/1309 Jun 09 2020
Quick Look [DI91] 719 DI91 719 DI91-719, S0XA000389 02h 11m 55.04s -74d 12m 37.12s O9 V 15.24 0.08 16647 COS/FUV Mar 28 2022 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
16647 02 Completed COS/FUV: G130M/1291 + G160M/1611 Mar 28 2022
Quick Look Gaia DR3 4637562032451492608 Gaia DR3 4637562032451492608 GAIA-DR3-4637562032451492608, S0XA000387 02h 12m 04.83s -74d 11m 57.72s O9.5 V 15.18 0.05 16647 COS/FUV Mar 28 2022 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
16647 03 Completed COS/FUV: G130M/1291 + G160M/1611 Mar 28 2022
Quick Look None Gaia DR3 4637562376048872448 GAIA-DR3-4637562376048872448, S0XA000379 02h 12m 09.86s -74d 10m 26.42s O 16647 COS/FUV & COS/NUV Jun 11 2022 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
16647 04 Completed COS/FUV: G130M/1291 + G160M/1611 & COS/NUV: G185M/1953/1986 Jun 11 2022
Quick Look [DI91] 739 DI91 739 DI91-739, S0XA000375 02h 12m 17.86s -74d 09m 51.14s O 14.05 16647 COS/FUV & COS/NUV Jun 11 2022 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
16647 05 Completed COS/FUV: G130M/1291 + G160M/1611 & COS/NUV: G185M/1953/1986 Jun 11 2022
Quick Look Sk 215 Sk 215 SK-215, WDG-8 02h 13m 25.42s -74d 31m 20.32s B5 Ia 12.18 0.03 16647 COS/FUV & COS/NUV Feb 07 2022 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
16647 06 Completed COS/FUV: G130M/1291 + G160M/1611 & COS/NUV: G185M/1953/1986 Feb 07 2022
Quick Look [DI91] 842 DI91 842 DI91-842, S0WX000267 02h 14m 11.86s -74d 04m 42.83s O8 III 14.26 0.14 16647 COS/FUV Mar 27 2022 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
16647 01 Completed COS/FUV: G130M/1291 + G160M/1611 Mar 27 2022
Quick Look None J095921.90+304518.1 J095921P304518, J095921.90+304518.1 09h 59m 21.90s +30d 45m 18.07s OB 19.9 16717 COS/FUV May 05 2022 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
16717 01 Failed COS/FUV: G160M/1589 May 07 2022
16717 02 Completed COS/FUV: G160M/1589 May 08 2022
16717 03 Completed COS/FUV: G160M/1589 May 06 2022
16717 04 Completed COS/FUV: G160M/1589 May 05 2022
16717 51 Completed COS/FUV: G160M/1589 Jun 19 2022
Quick Look [GWS2022] K1 LeoA GWS K1 LEOA-GWS-K1, J095927.53+304457.7 09h 59m 27.52s +30d 44m 57.75s O9 V 20.1 15921 COS/FUV Apr 18 2020 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
15921 01 Completed COS/FUV: G160M/1533 Apr 18 2020
15921 02 Completed COS/FUV: G160M/1533 May 01 2020
15921 03 Failed COS/FUV: G160M/1533 Apr 22 2020
15921 04 Completed COS/FUV: G160M/1533 Apr 22 2020
15921 23 Completed COS/FUV: G160M/1533 Oct 23 2020
Quick Look [GWS2022] K2 LeoA GWS K2 LEOA-GWS-K2, J095930.22+304437.0 09h 59m 30.22s +30d 44m 37.08s O9.7 V 20.2 15921 COS/FUV Apr 27 2020 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
15921 05 Completed COS/FUV: G160M/1533 May 01 2020
15921 06 Completed COS/FUV: G160M/1533 Apr 27 2020
15921 07 Completed COS/FUV: G160M/1533 Apr 29 2020
15921 08 Completed COS/FUV: G160M/1533 Apr 28 2020
Quick Look LGGS J101053.81-044113.0 Sextans A LGN s014 SEXTANS-A-LGN-S014, SEXTANS-A-OB326, STAR-J101053.81-044113.0 10h 10m 53.80s -04d 41m 13.11s O7.5 III((f)) 20.69 0.0 14245, 15880 COS/FUV Dec 11 2015 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
14245 01 Completed COS/FUV: G140L/1105 Dec 11 2015
14245 02 Completed COS/FUV: G140L/1105 Dec 15 2015
14245 03 Completed COS/FUV: G140L/1105 Mar 18 2016
15880 19 Completed COS/FUV: G130M/1291 Mar 31 2020
15880 20 Completed COS/FUV: G130M/1291/1309 Apr 01 2020
15880 21 Completed COS/FUV: G130M/1309 Jan 03 2020
Quick Look LGGS J101056.86-044040.8 Sextans A LGGS J101056.86-044040.8 SEXTANS-A-LGGS-J101056M044040, SA2 10h 10m 56.85s -04d 40m 40.90s O 20.41 0.0 16767 COS/FUV Dec 01 2021 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
16767 08 Completed COS/FUV: G130M/1291 Jan 20 2022
16767 09 Completed COS/FUV: G130M/1291 Dec 01 2021
16767 10 Completed COS/FUV: G160M/1600 Dec 02 2021
16767 11 Completed COS/FUV: G160M/1600 Dec 04 2021
16767 12 Completed COS/FUV: G160M/1600 Dec 02 2021
16767 13 Completed COS/FUV: G160M/1600 Dec 04 2021
Quick Look [VPW98] 1744 Sextans A LGN s029 SEXTANS-A-LGN-S029, SEXTANS-A 10h 10m 58.19s -04d 43m 18.46s O8.5 III 20.8 0.03 15967 COS/FUV May 29 2020 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
15967 04 Completed COS/FUV: G130M/1291 May 29 2020
15967 05 Completed COS/FUV: G160M/1600 Jun 04 2020
15967 06 Completed COS/FUV: G160M/1600 Jun 06 2020
Quick Look LGGS J101100.66-044044.3 Sextans A LGN s050 SEXTANS-A-LGN-S050, SEXTANS-A-OB321, STAR-J101100.66-044044.3 10h 11m 00.65s -04d 40m 44.40s O9.7 I 19.61 0.01 14245, 15880 COS/FUV Mar 19 2016 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
14245 07 Completed COS/FUV: G140L/1105 Mar 20 2016
14245 08 Completed COS/FUV: G140L/1105 Mar 19 2016
15880 16 Completed COS/FUV: G130M/1291 Feb 15 2020
15880 17 Completed COS/FUV: G130M/1291 Feb 16 2020
15880 18 Failed COS/FUV: G130M/1309 Feb 17 2020
15880 23 Completed COS/FUV: G130M/1309 Apr 18 2020
Quick Look LGGS J101102.38-044014.6 Sextans A LGN s089 SEXTANS-A-LGN-S089, STAR-J101102.38-044014.6 10h 11m 02.37s -04d 40m 14.68s B2.5 I 19.58 0.05 14245 COS/FUV Mar 06 2016 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
14245 09 Completed COS/FUV: G140L/1105 Mar 06 2016
14245 10 Completed COS/FUV: G140L/1105 Mar 06 2016
Quick Look LGGS J101104.78-044224.1 Sextans A LGN s037 SEXTANS-A-LGN-S037, SA1 10h 11m 04.77s -04d 42m 24.24s O9 I 20.68 0.03 16767 COS/FUV Jan 24 2022 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
16767 01 Completed COS/FUV: G130M/1291 Jan 24 2022
16767 02 Completed COS/FUV: G130M/1291 Jan 25 2022
16767 03 Completed COS/FUV: G160M/1600 Mar 13 2022
16767 04 Completed COS/FUV: G160M/1600 Mar 10 2022
16767 05 Completed COS/FUV: G160M/1600 Mar 12 2022
16767 06 Completed COS/FUV: G160M/1600 Mar 16 2022
16767 07 Completed COS/FUV: G160M/1600 Mar 16 2022
Quick Look LGGS J101104.79-044220.9 Sextans A LGN s021 SEXTANS-A-LGN-S021, SA3 10h 11m 04.79s -04d 42m 20.96s O8 V 20.6 0.05 16920 COS/FUV Jun 24 2022 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
16920 01 Completed COS/FUV: G130M/1291 Jun 24 2022
16920 02 Completed COS/FUV: G130M/1291 Jun 24 2022
16920 03 Completed COS/FUV: G160M/1600 Jun 27 2022
16920 04 Completed COS/FUV: G160M/1600 Jun 27 2022
16920 05 Completed COS/FUV: G160M/1600 Jun 27 2022
16920 06 Completed COS/FUV: G160M/1600 Jun 28 2022
Quick Look [VPW98] 451 Sextans A LGN s022 SEXTANS-A-LGN-S022, SEXTANS-A-OB521, STAR-J101105.38-044240.1 10h 11m 05.38s -04d 42m 40.15s O8 V 19.46 0.01 14245, 15880 COS/FUV Mar 15 2016 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
14245 04 Completed COS/FUV: G140L/1105 Mar 15 2016
15880 12 Failed COS/FUV: G130M/1291/1309 Feb 19 2020
15880 13 Completed COS/FUV: G130M/1291/1309 Feb 20 2020
15880 22 Completed COS/FUV: G130M/1291 Apr 05 2020
Quick Look LGGS J101106.05-044211.4 Sextans A LGN s038 SEXTANS-A-LGN-S038, SEXTANS-A-OB523, STAR-J101106.05-044211.4 10h 11m 06.04s -04d 42m 11.49s O9 I((f)) 19.49 0.03 14245, 15880 COS/FUV Mar 13 2016 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
14245 05 Completed COS/FUV: G140L/1105 Mar 13 2016
14245 06 Completed COS/FUV: G140L/1105 Mar 13 2016
15880 14 Completed COS/FUV: G130M/1291/1309 Feb 21 2020
15880 15 Completed COS/FUV: G130M/1291/1309 Feb 22 2020
Quick Look [ECG2019] LP 26 Leo-P ECG LP 26 LEO-P-ECG-LP-26, LEO-P 10h 21m 45.12s +18d 05m 16.93s O7-8 V 20.62 0.0 15967 COS/FUV Apr 11 2020 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
15967 07 Completed COS/FUV: G130M/1291 May 27 2020
15967 08 Completed COS/FUV: G130M/1291 Apr 18 2020
15967 09 Completed COS/FUV: G160M/1600 Apr 19 2020
15967 10 Completed COS/FUV: G160M/1600 Apr 19 2020
15967 11 Completed COS/FUV: G160M/1600 May 28 2020
15967 12 Completed COS/FUV: G160M/1600 Apr 11 2020

Table 3: ULLYSES Imaging

Quick Look Plot Simbad Resolvable Name ULLYSES Target Name APT Target Name RA(J2016) DEC(J2016) Proposal ID Science Configuration First Observation Date Overall Status
Imaging Only NGC3109 NGC3109 NGC3109, NGC-3109-V01, NGC-3109-V02 10h 03m 06.88s -26d 09m 34.46s 16104 WFC3/UVIS Oct 27 2020 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
16104 01 Completed WFC3/UVIS: F225W + F275W + F336W + F475W + F814W Oct 27 2020
16104 02 Completed WFC3/UVIS: F225W + F275W + F336W + F475W + F814W Nov 03 2020
Imaging Only Sex A Sextans-A SEXTANS-A 10h 11m 00.50s -04d 41m 30.00s 16104 WFC3/UVIS Jan 21 2022 Completed
Proposal ID Visit ID Visit Status Science Configuration Observation Date
16104 03 Completed WFC3/UVIS: F225W + F275W + F336W + F475W + F814W Jan 21 2022

Last Updated: Dec 12, 2023

Charting young stars’ ultraviolet light with Hubble.

Space Telescope Science Institute
3700 San Martin Dr.
Baltimore, MD

Questions? Contact the
STScI Help Desk