Mission Overview
Hubble UV Legacy Library of Young Stars as Essential Standards ("ULLYSES")
Primary Investigator: Julia Roman-Duval
HLSP Authors: See complete list of HLSP authors.
Released: 2020-11-05
Updated: 2020-11-05
Primary Reference(s): Coming soon...
Citations: Coming soon...
Source Data:
New Observations:
HST Proposals 16090, 16092, 16094, 16095, 16096
16097, 16098, 16099, 16100, 16101, 16102, 16103
Archival Observations (click "Expand All" to see):
Overview
The Hubble UV Legacy Library of Young Stars as Essential Standards ("ULLYSES") is a Director's Discretionary program devoting ~1,000 HST orbits to the production of an ultraviolet spectroscopic library of young high- and low-mass stars in the local universe. The ULLYSES program uniformly samples the fundamental astrophysical parameter space for each mass regime -- including spectral type, luminosity class, and metallicity for massive OB stars (in the Magellanic Clouds and two other lower-metallicity nearby galaxies) and the mass, and disk accretion rate for low-mass T Tauri stars (in eight young Galactic star forming regions). The data will be gathered over a three-year period, from Cycle 27 through Cycle 29 (2020-2022). The data products are combined from individual, extracted and calibrated spectra obtained with the COS and STIS instruments on-board HST. Products are made using both archival HST data and new HST observations obtained through the ULLYSES program.
In addition to the MAST HLSP webpage here, you can read more about ULLYSES on their team page: https://ullyses.stsci.edu/index.html. You can find out detailed information on the observations, the data processing, and access their spectral table.
Data Release 1 (05 Nov. 2020)
The first data release consists of multiple spectra for 115 massive stars in the Large and Small Magellanic Clouds. 43 of these 115 stars were recently observed with COS and STIS as part of the ULLYSES program; 8 of these 43 also have archival COS and STIS data. The remaining 72 targets have full UV coverage from archival programs (see the ULLYSES target lists for the LMC and SMC).
Data Products
For a full description of how the HLSPs were created, please see the Data Description page on the ULLYSES website.
The spectra have the following file naming convention:
hlsp_ullyses_hst_<instrument>_<target>_<opt-elem>_<product-type>_<version>.fits
where:
- <instrument> = one or more values representing the instrument(s) used to create the spectrum, described more below
- <target> = the name of a star in the ULLYSES program, all lowercase and no underscores allowed
- <opt-elem> = one or more optical elements representing the grism(s) used to create the spectrum, described more below
- <product-type> = the type of spectral product, described more in the table below
- <version> = the data release identifier, e.g., "dr1", "dr2", etc.
Additional Information On Data File Names and Types
Description | Instrument | Optical Element | Product Type | ULLYSES HLSP Level |
---|---|---|---|---|
STIS echelle single grating, where the orders have been extracted and merged. |
stis stis stis stis |
e140h e230h e140m e230m |
mspec | 1 |
Combined spectra, with common instrument and grating, and in some cases with different cenwave settings. |
cos cos cos cos stis stis stis stis stis stis stis |
g130m g160m g185m g230l e140h e140m e230h e230m g230l g430l g750l |
cspec | 2 |
Combined spectra, with common instrument, different gratings and cenwave settings, and grouped by resolution. |
cos stis stis stis |
g130m-g160m-g185m e140h-e230h e140m-e230m g230l-g430l-g750l |
cspec | 3 |
Final SED spectrum combined from all instruments and gratings. |
cos-stis cos-stis fuse-cos-stis |
uv uv-opt uv-opt |
sed | 4 |
Data file types:
_cspec.fits | Spectra combined from multiple gratings or instruments. |
_mspec.fits | Spectra combined from multiple STIS echelle orders. |
_sed.fits | Final SED spectrum combined from all instruments and gratings. |
Data Access
ULLYSES products are available in the MAST Portal (web-based, cross-mission search interface) and Astroquery (Python package to search for and download files from Python scripts you write). You can also access them through a spectral table available on the ULLYSES team webpage.
Tips On Using Portal For ULLYSES Data
How Do I Select Only ULLYSES HLSP Files In The Portal (Before or After I Do A Search)?
How Do I See The Linked HST Datasets That Went Into Each HLSP Observation In My Basket?
ULLYSES Target Table
Large Magellanic Cloud Targets (Jump To SMC Table)
Simbad Name | MAST Target Name | RA (J2000) | DEC (J2000) | SpType | V | B | E(B-V) | Instrument(s) | Grating(s) |
---|---|---|---|---|---|---|---|---|---|
SK -67 2 | SK-67D2 | 71.7686 | -67.1148 | B1Ia+ | 11.04 | 11.22 | 0.37 | STIS | E140M, E230M |
SK -67 5 | SK-67D5 | 72.5789 | -67.6606 | O9.7 Ib | 11.34 | 11.22 | 0.14 | STIS | E140H, E230H |
SK -68 8 | SK-68D8 | 73.4304 | -68.7148 | B5 Ia+ | 10.99 | 11.04 | 0.14 | COS, STIS | G130M, G160M, E230M |
SK -67 14 | SK-67D14 | 73.6329 | -67.2568 | B1.5 Ia | 11.52 | 11.42 | 0.08 | STIS | E140M, E230M |
SK -67 20 | SK-67D20 | 73.8806 | -67.5007 | WN4b | 13.81 | 13.46 | 0.1 | STIS | E140M |
LH 9-89 | LH9-89 | 74.0459 | -66.4734 | B0 IIIn | 13.68 | 13.52 | 0.14 | COS | G130M, G160M |
N11 018 | N11-ELS-018 | 74.171 | -66.4113 | O6 II(f^+ ) | 13.13 | 13.04 | 0.18 | COS | G130M, G160M |
N11 038 | N11-ELS-038 | 74.1884 | -66.4197 | O5 III(f+) | 13.81 | 13.81 | 0.28 | COS | G130M, G160M |
PGMW 3120 | PGMW3120 | 74.1951 | -66.4130 | O5.5 V ((f*)) | 12.8 | 12.73 | 0.21 | STIS | E140M, E230M |
N11 013 | N11-ELS-013 | 74.2536 | -66.4070 | O8 V | 12.93 | 12.86 | 0.2 | STIS | E140M, E230M |
SK -66 35 | SK-66D35 | 74.2685 | -66.5774 | BC1Ia | 11.58 | 11.5 | 0.11 | STIS | E140M, E230M |
SK -69 50 | SK-69D50 | 74.3129 | -69.3389 | O7 If | 13.31 | 13.15 | 0.11 | STIS | E140M |
SK -68 15 | SK-68D15 | 74.3504 | -68.3992 | WC4 | 12.69 | 12.53 | 0.24 | STIS | E140M |
SK -67 22 | SK-67D22 | 74.3644 | -67.6508 | O2 If*/WN5 | 13.44 | 13.26 | 0.1 | STIS | E140M |
SK -65 22 | SK-65D22 | 75.3462 | -65.8759 | O6 Iaf+ | 12.07 | 11.88 | 0.08 | STIS | E140M, E230M |
SK -68 26 | SK-68D26 | 75.3844 | -68.1786 | BC2Ia | 11.44 | 11.73 | 0.46 | COS, STIS | G130M, G160M, E230M |
SK -70 79 | SK-70D79 | 76.6553 | -70.4901 | B0 III | 12.71 | 12.65 | 0.24 | STIS | E140M, E230M |
SK -68 52 | SK-68D52 | 76.8351 | -68.5357 | B0 Ia | 11.54 | 11.47 | 0.17 | STIS | E140M, E230M |
SK -69 104 | SK-69D104 | 79.7479 | -69.2152 | O6Ib(f) | 12.09 | 11.89 | 0.07 | STIS | E140M, E230M |
SK -65 47 | SK-65D47 | 80.228 | -65.4550 | O4 If | 12.68 | 12.55 | 0.15 | STIS | E140M |
SK -71 19 | SK-71D19 | 80.5656 | -71.3609 | O6 III | 14.23 | 14.03 | 0.07 | COS | G130M, G160M |
SK -68 73 | SK-68D73 | 80.7491 | -68.0296 | OBf:pe | 11.45 | COS, STIS | G130M, G160M, E230M | ||
SK -67 101 | SK-67D101 | 81.4844 | -67.5080 | O8II((f)) | 12.67 | 12.44 | 0.04 | STIS | E140M, E230M |
SK -67 105 | SK-67D105 | 81.5258 | -67.1824 | O4f + O6 V | 12.25 | 11.55 | STIS | E140M, E230M | |
SK -67 106 | SK-67D106 | 81.5634 | -67.5000 | B0 I | 12.78 | 12.61 | 0.07 | STIS | E140M |
SK -67 107 | SK-67D107 | 81.5862 | -67.4988 | B0 I | 12.5 | 12.38 | 0.12 | STIS | E140M |
SK -67 108 | SK-67D108 | 81.6103 | -67.6223 | O4-5 III | 12.57 | 12.37 | 0.08 | STIS | E140M |
SK -67 111 | SK-67D111 | 81.7003 | -67.4916 | O6:Iafpe | 12.57 | 12.37 | 0.07 | STIS | E140M |
BI 173 | BI173 | 81.7915 | -69.1323 | O8II: | 12.96 | 12.8 | 0.11 | STIS | E140M, E230M |
SK -69 140 | SK-69D140 | 81.9141 | -69.2116 | B4 I | 12.71 | 12.61 | 0.03 | COS, STIS | G130M, G160M, E230M |
BI 184 | BI184 | 82.6278 | -71.0421 | O8 (V)e | 13.84 | 13.76 | 0.19 | COS, STIS | G130M, G160M, E230M |
SK -71 41 | SK-71D41 | 82.6673 | -71.0936 | O9.7 Iab | 12.82 | 12.75 | 0.19 | STIS | E140M |
NGC2004 3 | NGC2004-ELS-3 | 82.6684 | -67.2691 | B5 Ia | 11.94 | 12.14 | 0.29 | COS, STIS | G130M, G160M, E230M |
[N206-FS]-170 | N206-FS-170 | 82.7622 | -70.8323 | B1 IV | 14.39 | 14.22 | 0.09 | COS | G130M, G160M |
SK -71 46 | SK-71D46 | 82.9566 | -71.0606 | O4 If | 13.24 | 13.15 | 0.19 | COS | G130M, G160M |
SK -67 168 | SK-67D168 | 82.9672 | -67.5724 | O8Iaf | 12.08 | 11.91 | 0.1 | STIS | E140M |
LMC X-4 | LMCX-4 | 83.2065 | -66.3703 | O8IV | 14.17 | 13.94 | 0.04 | STIS | E140M |
SK -67 191 | SK-67D191 | 83.3918 | -67.5055 | O8V | 13.46 | 13.25 | 0.06 | STIS | E140M, E230M |
SK -69 191 | SK-69D191 | 83.5802 | -69.7529 | WC4 | 13.25 | 12.98 | 0.05 | STIS | E140M |
SK -67 211 | SK-67D211 | 83.8079 | -67.5576 | O2III(f*) | 12.28 | 12.05 | 0.05 | STIS | E140M, E230M |
BI 237 | BI237 | 84.061 | -67.6553 | O2 V((f*)) | 13.89 | 13.77 | 0.16 | COS, STIS | G130M, G160M, E230M |
LMCe078-1 | LMCE078-1 | 84.3734 | -69.2478 | O5.5 Iaf | 13.49 | 13.46 | 0.24 | COS | G130M, G160M |
VFTS 72 | VFTS72 | 84.3936 | -69.0195 | O2 V-III(n)((f*)) | 13.7 | 13.56 | 0.14 | COS, STIS | G130M, G160M, E230M |
SK -68 135 | SK-68D135 | 84.4548 | -68.9171 | ON9.7 Ia+ | 11.36 | 11.36 | 0.26 | STIS | E140M, E230M |
BAT99 105 | BAT99-105 | 84.6755 | -69.0987 | O2 If* | 12.78 | 12.86 | 0.36 | STIS | E140M |
SK -68 140 | SK-68D140 | 84.7382 | -68.9481 | B0.7 Ib-Iab Nwk | 12.73 | 12.71 | 0.17 | COS, STIS | G130M, G160M, E230M |
[ST92] 4-18 | ST92-4-18 | 84.9612 | -69.4076 | O5 If | 13.66 | 13.64 | 0.26 | COS | G130M, G160M |
Farina 88 | FARINA-88 | 85.0343 | -69.6548 | O4 III(f) | 13.63 | 13.56 | 0.21 | COS | G130M, G160M |
SK -71 50 | SK-71D50 | 85.1799 | -71.4835 | O6.5II | 13.44 | 13.32 | 0.15 | STIS | E140M, E230M |
SK -69 279 | SK-69D279 | 85.4361 | -69.5875 | O9I | 12.84 | 12.79 | 0.21 | COS, STIS | G130M, G160M, E230M |
SK -68 155 | SK-68D155 | 85.7289 | -68.9485 | O8I | 12.75 | 12.74 | 0.26 | COS, STIS | G130M, G160M, E230M |
LH 114-7 | LH114-7 | 85.8042 | -67.8544 | O3 III(f)* | 13.66 | 13.41 | 0.03 | STIS | E140M |
SK -70 115 | SK-70D115 | 87.2069 | -70.0661 | O6.5Iaf | 12.24 | 12.14 | 0.17 | STIS | E140H, E230H |
Small Magellanic Cloud Targets (Jump To LMC Target Table)
Simbad Name | MAST Target Name | RA (J2000) | DEC (J2000) | SpType | V | B | E(B-V) | Instrument(s) | Grating(s) |
---|---|---|---|---|---|---|---|---|---|
2dFS 163 | 2DFS-163 | 9.2427 | -73.3926 | O8 Ib(f) | 15.11 | 14.95 | 0.11 | COS | G130M, G160M |
AV 6 | AV6 | 11.3257 | -73.2569 | O9III | 13.31 | 13.36 | 0.31 | COS | G130M, G160M |
AV 15 | AV15 | 11.6757 | -73.4154 | O6.5II(f) | 13.12 | 12.93 | 0.08 | STIS | E140M |
AV 16 | AV16 | 11.7293 | -73.1428 | B0[e]LBV | 13.03 | 13.15 | 0.42 | STIS | E140M |
AV 18 | AV18 | 11.8009 | -73.1092 | B2 Ia | 12.44 | 12.47 | 0.2 | STIS | E140H, E230H |
AV 22 | AV22 | 11.9114 | -73.1302 | B5 (Ia) | 12.23 | 12.21 | 0.07 | STIS | E140M, E230M |
AV 43 | AV43 | 12.1996 | -72.7736 | B0.2 V | 13.88 | 13.76 | 0.18 | COS | G130M, G160M |
AV 47 | AV47 | 12.2145 | -73.4329 | O8III((f)) | 13.44 | 13.26 | 0.09 | STIS | E140M, E230M |
AV 69 | AV69 | 12.5717 | -72.8917 | OC7.5III((f)) | 13.27 | 13.09 | 0.09 | STIS | E140M |
AV 70 | AV70 | 12.5755 | -72.6361 | O9.5Iw | 12.38 | 12.21 | 0.09 | STIS | E140M, E230M |
AV 75 | AV75 | 12.635 | -72.8768 | O5III(f+) | 12.7 | 12.55 | 0.13 | STIS | G130M, G160M |
AV 80 | AV80 | 12.6825 | -72.7949 | O7 III | 13.32 | 13.19 | 0.14 | STIS | E140M, E230M |
AV 83 | AV83 | 12.7167 | -72.7042 | O7Iaf+ | 13.31 | 13.19 | 0.15 | STIS | E140M |
AV 95 | AV95 | 12.84 | -72.7375 | O7III((f)) | 13.78 | 13.6 | 0.09 | STIS | E140M, E230M |
AV 104 | AV104 | 12.9101 | -72.8017 | B0.5Ia | 13.17 | 13.01 | 0.06 | STIS | E140M, E230M |
NGC330 4 | NGC330-ELS-04 | 14.0867 | -72.4762 | B2.5 Ib | 13.33 | 13.26 | 0.08 | STIS | E140M, E230M |
NGC330 2 | NGC330-ELS-02 | 14.1036 | -72.4617 | B3 Ib | 13.03 | 12.99 | 0.09 | STIS | E140M, E230M |
AV 175 | AV175 | 14.1587 | -72.6098 | B1 IIW | 13.53 | 13.45 | 0.16 | COS | G130M, G160M |
AV 187 | AV187 | 14.3822 | -71.3331 | B3Ia | 12.06 | 11.96 | 0.03 | COS, STIS | G130M, G160M, E230M |
AV 189 | AV189 | 14.3855 | -72.4809 | B0 (IV) | 14.37 | 14.26 | 0.19 | COS | G130M, G160M |
NGC346 43 | NGC346-ELS-43 | 14.5581 | -72.1553 | B0V | 15.36 | 15.13 | 0.07 | COS | G130M, G160M, G185M |
NGC346 26 | NGC346-ELS-26 | 14.5593 | -72.1792 | B0 IV (Nstr) | 14.98 | 14.84 | 0.16 | STIS | E140M |
NGC346 28 | NGC346-ELS-28 | 14.6323 | -72.1828 | OC6 Vz | 15.01 | 14.75 | 0.02 | COS, STIS | G130M, E140M |
AV 207 | AV207 | 14.6383 | -71.9296 | O7 III((f)) | 14.25 | 14.05 | 0.07 | COS, STIS | G130M, G160M, E230M |
AV 210 | AV210 | 14.6491 | -72.2736 | B1.5Ia | 12.6 | 12.58 | 0.16 | STIS | E140M, E230M |
NGC346 50 | NGC346-ELS-50 | 14.7301 | -72.1519 | O8 Vn | 15.5 | 15.2 | 0.0 | COS | G130M, G160M |
AV 215 | AV215 | 14.7318 | -72.5357 | B0 (Ib) | 12.69 | 12.6 | 0.15 | STIS | E140M, E230M |
NGC346 7 | NGC346-ELS-07 | 14.7392 | -72.1760 | O4V((f)) | 14.07 | 13.79 | 0.0 | STIS | E140M |
NGC346 355 | NGC346-MPG-355 | 14.7532 | -72.1745 | O2III(f*) | 12.74 | 12.56 | 0.1 | STIS | E140M |
NGC346 368 | NGC346-MPG-368 | 14.7575 | -72.1754 | O5.5V((f+)) | 14.04 | 13.89 | 0.13 | STIS | G130M, G160M |
NGC346 51 | NGC346-ELS-51 | 14.7862 | -72.1706 | O7 Vz | 15.51 | 15.25 | 0.01 | COS | G130M, G160M |
AV 224 | AV224 | 14.8168 | -72.0790 | B1 III | 14.12 | 13.97 | 0.11 | COS | G130M, G160M |
AV 229 | AV229 | 14.8608 | -72.1650 | WN4+WN+O | 11.08 | STIS | E140M, E230M | ||
AV 232 | AV232 | 14.8832 | -72.1795 | O7 Iaf+ | 12.31 | 12.12 | 0.08 | STIS | E140M |
AV 234 | AV234 | 14.9313 | -72.0719 | B3Iab | 12.94 | 12.84 | 0.03 | COS, STIS | G130M, G160M, E230M |
AV 235 | AV235 | 14.9406 | -72.7490 | B0Iaw | 12.2 | 12.02 | 0.06 | STIS | E140M, E230M |
NGC346 35 | NGC346-ELS-35 | 14.9444 | -72.0924 | B1 V | 15.09 | 14.86 | 0.03 | COS | G130M, G160M |
AV 243 | AV243 | 15.028 | -72.7887 | O6V | 13.84 | 13.67 | 0.11 | COS | G130M, G160M |
AV 242 | AV242 | 15.0287 | -72.2326 | B0.7Iaw | 12.11 | 11.98 | 0.06 | STIS | E140M, E230M |
AV 266 | AV266 | 15.2891 | -72.4579 | B1 I | 12.55 | 12.43 | 0.07 | STIS | E140M, E230M |
AV 267 | AV267 | 15.3154 | -72.1098 | O8 V | 14.84 | 14.58 | 0.01 | COS | G130M, G160M |
AV 304 | AV304 | 15.5895 | -72.6541 | B0.5V | 14.98 | 14.78 | 0.08 | COS | G130M, G160M, G185M |
AV 307 | AV307 | 15.6341 | -72.6618 | O9 III | 13.96 | 13.8 | 0.1 | COS | G130M, G160M |
AV 321 | AV321 | 15.7379 | -72.1359 | B0 IIIWW | 13.76 | 13.57 | 0.11 | STIS | E140M, E230M |
AV 324 | AV324 | 15.7634 | -72.1877 | B4Iab | 12.84 | 12.79 | 0.08 | COS, STIS | G130M, G160M, G185M, E230M |
AV 326 | AV326 | 15.7886 | -72.4324 | B0 (IV) | 13.92 | 13.8 | 0.18 | COS | G130M, G160M |
AV 327 | AV327 | 15.794 | -72.0373 | O9.5II-Ibw | 13.03 | 12.87 | 0.1 | STIS | E140M |
AV 332 | AV332 | 15.8551 | -72.1122 | WN4+O6.5I: | 12.3 | 12.11 | 0.1 | STIS | E140M |
AV 362 | AV362 | 16.2056 | -72.1060 | B3Ia | 11.36 | 11.34 | 0.11 | STIS | E140M, E230M |
AV 372 | AV372 | 16.2323 | -72.7800 | O9.5Iabw | 12.59 | 12.44 | 0.11 | STIS | E140M, E230M |
AV 377 | AV377 | 16.2808 | -72.8052 | O5 V((f)) | 14.59 | 14.34 | 0.03 | COS | G130M, G160M |
AV 388 | AV388 | 16.4147 | -72.4908 | O4 V | 14.09 | 13.88 | 0.07 | COS, STIS | G130M, G160M, E140M, E230M |
AV 393 | AV393 | 16.4847 | -72.3291 | B2 Ia | 11.48 | 11.45 | 0.14 | COS, STIS | G130M, G160M, E230M |
AV 423 | AV423 | 16.9183 | -72.8500 | O9.5II(n) | 13.25 | 13.08 | 0.09 | STIS | E140M |
AV 440 | AV440 | 17.2334 | -71.8796 | O7.5 III: | 14.48 | 14.3 | 0.09 | COS | G130M, G160M |
AV 446 | AV446 | 17.356 | -73.1583 | O6.5 V | 14.59 | 14.35 | 0.03 | COS | G130M, G160M |
AV 456 | AV456 | 17.7324 | -72.7156 | O9.5 Ib | 12.83 | 12.93 | 0.36 | COS, STIS | G130M, G160M, E230M |
AV 476 | AV476 | 18.4269 | -73.2915 | O6.5 V | 13.52 | 13.43 | 0.18 | COS, STIS | G130M, G160M, E230M |
AV 479 | AV479 | 18.7094 | -73.3383 | O9Ib | 12.42 | 12.26 | 0.1 | COS, STIS | G130M, G160M, E140H, E230H |
AV 488 | AV488 | 18.9953 | -73.3568 | B0.5Iaw | 11.89 | 11.76 | 0.09 | STIS | E140M, E230M |
SK 173 | SK173 | 21.4093 | -73.1276 | B0.7 (II)e | 13.57 | 13.4 | 0.07 | COS | G130M, G160M |
SK 191 | SK191 | 25.4253 | -73.8439 | B1.5Ia | 11.86 | 11.82 | 0.14 | COS, STIS | G130M, G160M, E140M, E230M |