AGB stars and red supergiants in the LMC as seen with DENIS

Details AGB stars and red supergiants in the LMC as seen with DENIS AGB stars and red supergiants in the LMC as seen with DENIS

Jul 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994ap%26ss.217..131l&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 217, no. 1-2, p. 131-135

Astronomy and Astrophysics

Astronomy

1

Asymptotic Giant Branch Stars, Infrared Astronomy, Magellanic Clouds, Near Infrared Radiation, Sky Surveys (Astronomy), Stellar Magnitude, Stellar Mass, Stellar Mass Ejection, Supergiant Stars, Astronomical Photometry, Detection, Diagrams, Evaluation, Identifying, Milky Way Galaxy, Spectral Bands, Stellar Color, Stellar Spectra

Scientific paper

The goal of this short communication is to evaluate the usefulness of Deep Near-Infrared Survey (DENIS) for the study of stars on the Asymptotic Giant Branch (AGB) and red supergiants (RSG) in the Large Magellanic Cloud (LMC). We try to answer two fundamental questions: (i) Can DENIS detect all the AGB stars and RSG in the LMC? (ii) How can we identify these sources using only the I, J, and K bands? We have used an observational approach by compiling available data in the LMC in the (V,R), I, J, H, K, (L,M) bands. About 3000 AGB stars and RSG have been measured in I, of which about 1000 have JHK measurements. Note that most of the searches were based on I and then the sample is strongly biased for optical stars, losing mass at a small rate. Only a few dust obscured objects are known, identified on the basis of Infrared Astronomy Satellite (IRAS) observations.

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