Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994ap%26ss.217..117f&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 217, no. 1-2, p. 117-120
Astronomy and Astrophysics
Astronomy
2
Asymptotic Giant Branch Stars, Infrared Astronomy, Kinematics, Mira Variables, Near Infrared Radiation, Sky Surveys (Astronomy), Spatial Distribution, Stellar Luminosity, Accuracy, Distance, Globular Clusters, Light Curve, Magellanic Clouds, Stellar Color
Scientific paper
The Deep Near-Infrared Survey (DENIS) and Two Micron All Sky Survey (2MASS) will detect large numbers of cool AGB stars both in our Galaxy and the Magellanic Clouds. Among the most interesting of these will be the large amplitude, oxygen-rich, (M-type) Mira variables, including OH/IR variables. Such stars can be selected with a high success rate from their position in a J-H/H-K two color diagram (cf. Feast et al. 1982, Whitelock et al. 1993). It may well be that a similar separation is possible in the I-J/J-K diagram though this possibility does not seem to have been investigated. Evidently, much work will be necessary to obtain accurate periods and mean magnitudes for Mira candidates detected in the surveys. Such work should greatly increase our understanding both of late stages of stellar evolution and of galactic structure. This paper discusses some of the issues which should be addressed by this work.
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