期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 371, 期 3, 页码 1405-1417出版社
OXFORD UNIV PRESS
DOI: 10.1111/j.1365-2966.2006.10764.x
关键词
catalogues; surveys; Cepheids; stars : variables : other; galaxies : individual : M33
We have conducted a variability survey of the Local Group galaxy M33, using g', r', and i' observations from 27 nights spanning 17 months, made with the MegaPrime/MegaCam instrument on the 3.6-m Canada-France-Hawaii Telescope (CFHT). We identify more than 36 000 variable sources with g', r', i' less than or similar to 24, out of approximately two million point sources in a 1-deg(2) field of view. This increases the number of known variables in this galaxy by more than a factor of 20. In this paper, we provide a brief description of the data and a general overview of the variable star population which includes more than 1300 candidate variable blue and red supergiant stars, more than 2000 Cepheids, and more than 19 000 long-period variable asymptotic giant branch and red giant branch stars.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据