Observations of the six ULLYSES high-mass stars in the low-metallicity galaxies Sextans A and NGC 3109 will be obtained during HST cycles 27-29 with COS/G140L/800.
For each star, the table below gives the galaxy and star designation; the stellar position (generally from Gaia DR2 or 2MASS); the adopted spectral type; V magnitude; and total E(B-V) (i.e., Galactic plus the external galaxy’s); and photometry for 5 WFC3 filters listed in units of STmag (errors are of order of 0.05-0.1mag). Three additional columns will be populated (when the information exists), giving the proposal ID, the science configuration (indicating which instruments and channels will be used), and the date of the first observation of that target. Further information about each visit can be found by clicking on the row for the target of interest. An additional table will appear that will contain the visit ID, the scheduling status of that visit, a more detailed science configuration (including grating and central wavelength), and the observation date for each visit.
Additional information is available in the .csv file available for download here.