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The implementation team at STScI is inviting invites the community to provide recommendations for specific targets and/or types of targets to be observed as part of the ULLYSES program. We provide links to spreadsheets that summarise the HST data available currently in the MAST archives. The targets should be aligned with the science goals outlined in the report and cover the parameter space defined therein:
- ~150 OB stars in the LMC and SMC that uniformly sample spectral types and luminosity class, including WR stars. Whenever possible, the sight-lines should sample a range of extinction. Overlap with the FUSE and VLT archival samples is preferable. LMC COS archive data SMC COS archive data
- ~ 5-10 OB stars in low-metallicity galaxies (Z < 10% solar) in the Local Group that are observable with HST/COS (G140L or G130M + G160M). Availability of spectral classification and archival optical spectroscopic observations are preferable. Sextans A COS archive data
- ~ 40-50 T Tauri stars and brown dwarfs sampling masses 0.05-1 M_sun (focusing on the low mass end <0.5 M_Sun), ages 1-10 Myr, log accretion rates = -10 to -6 M_sun/yr, jet presence/absence, disk inclination and cloud membership (Lupus, Chamaeleon I, Upper Sco, Ori OB1, a, b OB associations, TW Hya, Eta Cha, Epsilon Cha associations). Availability of archival data (sub-mm/radio imaging and spectroscopy, optical-IR spectroscopy, X-ray, or other) is preferable. Targets should be confirmed single objects with known optical or UV reddening. Low mass stars archive data
- 4 T-Tauri stars sampling different magnetic field structures, as measured previously from Zeeman Doppler Imaging, as well as disk/star inclination and jet presence/absence. Rotation periods and UV flux for these objects should be known.
he The list of Cycle 27 approved targets and observations can be found at http://www.stsci.edu/hst/proposing/approved-programs.
Recommendations for specific samples should must be accompanied by the following:
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