2018A&A...618A.137D -
Astronomy and Astrophysics, volume 618A, 137-137 (2018/1-0)
An atlas of cool supergiants from the Magellanic Clouds and typical interlopers. A guide for the classification of luminous red stars.
DORDA R., NEGUERUELA I., GONZALEZ-FERNANDEZ C. and MARCO A.
Abstract (from CDS):
We present an atlas composed of more than 1500 spectra of late-type stars (spectral types from G to M) observed simultaneously in the optical and calcium triplet spectral ranges. These spectra were obtained as part of a survey to search for cool supergiants in the Magellanic Clouds and were taken over four epochs. We provide the spectral and luminosity classification for each spectrum (71% are supergiants, 13% are giants or luminous giants, 4% are carbon or S stars, and the remaining 12% are foreground stars of lesser luminosities). We also provide a detailed guide for the spectral classification of luminous late-type stars, the result of the extensive classification work done for the atlas. Although this guide is based on classical criteria, we have put them together and re-elaborated them for modern CCD-spectra as these criteria were scattered among many different works and mainly conceived for use with photographic plate spectra. The result is a systematic, well-tested process for identifying and classifying luminous late-type stars, illustrated with CCD spectra of standard stars and the classifications of our own catalogue.
Abstract Copyright:
© ESO 2018
Journal keyword(s):
atlases - stars: late-type - supergiants - stars: massive - Magellanic Clouds
VizieR on-line data:
<Available at CDS (J/A+A/618/A137): tabled.dat sp/*>
Simbad objects:
937
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