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Variable stars in M31 from the MEGA survey

Published online by Cambridge University Press:  12 April 2016

David R. Alves ,
Edward A. Baltz ,
Arlin Crotts ,
Alex Bergier ,
Patrick Cseresnjes  and
Alan Gersch
David R. Alves
Affiliation:
Columbia Astrophysics Laboratory, 550 W. 120th Si., Mailcode 5247, New York, NY, 10027, USA
Edward A. Baltz
Affiliation:
Columbia Astrophysics Laboratory, 550 W. 120th Si., Mailcode 5247, New York, NY, 10027, USA
Arlin Crotts
Affiliation:
Columbia Astrophysics Laboratory, 550 W. 120th Si., Mailcode 5247, New York, NY, 10027, USA
Alex Bergier
Affiliation:
Columbia Astrophysics Laboratory, 550 W. 120th Si., Mailcode 5247, New York, NY, 10027, USA
Patrick Cseresnjes
Affiliation:
Columbia Astrophysics Laboratory, 550 W. 120th Si., Mailcode 5247, New York, NY, 10027, USA
Alan Gersch
Affiliation:
Columbia Astrophysics Laboratory, 550 W. 120th Si., Mailcode 5247, New York, NY, 10027, USA

Abstract

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The MEGA microlensing survey is introduced and several topics about variable stars in M31 are discussed. An adopted model population of semiregular (SR) variable stars is presented, and the efficiency to recover these stars in M31 in a specific example MEGA dataset is predicted. The period-flux amplitude relation of the SRs discovered by MEGA could be used to measure the inclination of the M31 disk.

Type
Part 2. What variable stars tell us about the Local Group, including the distance scale
Information
International Astronomical Union Colloquium , Volume 193: Variable Stars in the Local Group , 2004 , pp. 65 - 69
Copyright
Copyright © Astronomical Society of the Pacific 2004

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