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Infrared observation of Mira variables and their galactic distribution

Published online by Cambridge University Press:  21 March 2013

Ryo Miyanoshita ,
Toshihiro Omodaka ,
Toshihiro Handa ,
Tatsuya Kamezaki ,
Chihiro Nakai  and
Hiroshi Fujiwara
Ryo Miyanoshita
Affiliation:
Depart. Astron. & Phys., Kagoshima Univ., Korimoto 1-21-35, Kagoshima 890-0065, Japan email: omodaka@sci.kagoshima-u.ac.jp
Toshihiro Omodaka
Affiliation:
Depart. Astron. & Phys., Kagoshima Univ., Korimoto 1-21-35, Kagoshima 890-0065, Japan email: omodaka@sci.kagoshima-u.ac.jp
Toshihiro Handa
Affiliation:
Depart. Astron. & Phys., Kagoshima Univ., Korimoto 1-21-35, Kagoshima 890-0065, Japan email: omodaka@sci.kagoshima-u.ac.jp
Tatsuya Kamezaki
Affiliation:
Depart. Astron. & Phys., Kagoshima Univ., Korimoto 1-21-35, Kagoshima 890-0065, Japan email: omodaka@sci.kagoshima-u.ac.jp
Chihiro Nakai
Affiliation:
Depart. Astron. & Phys., Kagoshima Univ., Korimoto 1-21-35, Kagoshima 890-0065, Japan email: omodaka@sci.kagoshima-u.ac.jp
Hiroshi Fujiwara
Affiliation:
Depart. Astron. & Phys., Kagoshima Univ., Korimoto 1-21-35, Kagoshima 890-0065, Japan email: omodaka@sci.kagoshima-u.ac.jp
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Abstract

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Since November 2003, we have monitored AGB candidates in infrared wavelengths with the Kagoshima 1m telescope. We present the latest results based on the data until June 2011. For each of 400 monitored AGB stars, we estimate the periods, amplitudes, and mean apparent magnitudes in K band. Based on the two color diagram we choose 259 objects as Miras. We use the period–luminosity relation to obtain distances to them. As results we show the 3 dimensional distribution of 259 Mira variables.

Keywords

stars: AGB — stars: distances — Galaxy: structure
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S292: Molecular Gas, Dust, and Star Formation in Galaxies , August 2012 , pp. 109
Copyright
Copyright © International Astronomical Union 2013

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