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Optical spectroscopic observations of the Be/X-Ray binary A0535+262/V725 Tau during the giant outburst in 2009

Published online by Cambridge University Press:  12 July 2011

Yuuki Moritani ,
Daisaku Nogami ,
Atsuo T. Okazaki ,
Akira Imada ,
Eiji Kambe ,
Satoshi Honda ,
Osamu Hashimoto  and
Kazuhide Ichikawa
Yuuki Moritani
Affiliation:
Department of Astronomy, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan email: moritani@kusastro.kyoto-u.ac.jp
Daisaku Nogami
Affiliation:
Kwasan Observatory, Kyoto University, Yamashina-ku, Kyoto 607-8471, Japan
Atsuo T. Okazaki
Affiliation:
Faculty of Engineering, Hokkai-Gakuen University, Toyohira-ku, Sapporo 062-8605, Japan
Akira Imada
Affiliation:
Okayama Astrophysical Observatory, National Astronomical Observatory of Japan, 3037-5 Honjo, Asakuchi, Okayama 719-0232, Japan
Eiji Kambe
Affiliation:
Okayama Astrophysical Observatory, National Astronomical Observatory of Japan, 3037-5 Honjo, Asakuchi, Okayama 719-0232, Japan
Satoshi Honda
Affiliation:
Kwasan Observatory, Kyoto University, Yamashina-ku, Kyoto 607-8471, Japan
Osamu Hashimoto
Affiliation:
Gunma Astronomical Observatory, Takayama-mura, Gunma 377-0702, Japan
Kazuhide Ichikawa
Affiliation:
Department of Astronomy, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan email: moritani@kusastro.kyoto-u.ac.jp
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Abstract

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A giant outburst occurred in A0535+262/V725 Tau in November 2009, which lasted approximately 30 days. We carried out spectroscopic monitoring at OAO and GAO from November 2009 to March 2010, from before the giant outburst to the rising phase of the normal outburst which occurred after the next periastron. The obtained H-alpha, H-beta and He I emission lines exhibited drastic profile variability during the observations.

Keywords

binaries: spectroscopicstars: emission-lineBestars: individual (A0535+262)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S272: Active OB stars: structure, evolution, mass loss, and critical limits , July 2010 , pp. 618 - 619
Copyright
Copyright © International Astronomical Union 2011

References

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