Short period Miras and Galactic Structure

Details Short period Miras and Galactic Structure Short period Miras and Galactic Structure

Jul 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994ap%26ss.217..101j&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 217, no. 1-2, p. 101-104

Astronomy and Astrophysics

Astronomy

1

Asymptotic Giant Branch Stars, Galactic Structure, Milky Way Galaxy, Mira Variables, Red Giant Stars, Sky Surveys (Astronomy), Stellar Luminosity, Classifications, Globular Clusters, Infrared Astronomy, Magellanic Clouds, Near Infrared Radiation

Scientific paper

Red Giants on the Asymptotic Giant Branch typically are more luminous than MK = -7 mag. Therefore, a new Two Micron Sky Survey (2MASS) which will go as faint as mK = 10 mag will be able to observe most of these stars in the Milky Way. Such a complete census will enable us to develop a much better understanding of Galactic Structure. It will be important to separate the luminous red giants into their different subclasses because these subclasses trace different Galactic Populations. For example, Miras with periods less than 300 days can be used to study the 'thick disk', while Miras with periods greater than 300 days belong to the 'thin disk'.

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