VizieR Online Data Catalog: Variable stars in M31 & M33. II. LBVs (Humphreys+, 2014)

In Paper I (Humphreys et al. 2013ApJ...773...46H), we discussed a small group of intermediate temperature supergiants, the warm hypergiants, and suggested that they were likely post-red supergiants. In this second paper, we review the spectral characteristics, spectral energy distributions (SEDs), circumstellar ejecta, and mass loss of the LBVs, candidate LBVs, emission line stars, and other luminous and variable stars in M31 and M33.

The observations (described in paper I) were made in 2010 October with the Hectospec Multi-Object Spectrograph on the 6.5m MMT on Mount Hopkins. A few stars of special interest (5 in M31 and 8 in M33) were also observed with the MODS1 spectrograph on the Large Binocular Telescope (LBT) during commissioning in 2011 September, and in 2012 October and November, and 2013 January.

All of the stars for which we have spectra are listed in Table 1 in order of right ascension.

(2 data files).