NIR Survey of Variable Stars in the Large Magellanic Cloud

Pulsation at the tip of the first giant branch?
  • Yoshifusa Ita
  • T. Tanabé
  • Y. Nakada
  • N. Matsunaga
  • Y. Nakajima
  • C. Nagashima
  • T. Nagayama
  • D. Kato
  • T. Nagata
  • M. Tamura
Part of the Astrophysics and Space Science Library book series (ASSL, volume 283)

Abstract

The preliminary results of our ongoing NIR survey of the variable red giants in the Large Magellanic Cloud are presented. In the observed color-magnitude diagram (JK s , K s ) and the stellar K s magnitude distribution, the tip of the first giant branch (TRGB, Ks 12.3 Nikolaev & Weinberg 2000) is clearly seen. Apart from the genuine AGB variables, we found many variable stars that populate just below the TRGB. From this result, we infer that most, if not all, of them are RGB variables

Keywords

LMC AGB RGB Variable star Survey 

References

  1. Nikolaev, S., & Weinberg, M. D. 2000, ApJ, 542, 804ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2003

Authors and Affiliations

  • Yoshifusa Ita
    • 1
  • T. Tanabé
    • 1
  • Y. Nakada
    • 1
  • N. Matsunaga
    • 1
  • Y. Nakajima
    • 2
  • C. Nagashima
    • 2
  • T. Nagayama
    • 2
  • D. Kato
    • 2
  • T. Nagata
    • 2
  • M. Tamura
    • 3
  1. 1.Institute of Astronomy, School of ScienceThe University of TokyoMitakaJapan
  2. 2.Department of AstrophysicsNagoya UniversityChikusa-kuJapan
  3. 3.National Astronomical Observatory of JapanMitakaJapan

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