The southern dwarf hunt: Local Group dwarf candidates in the southern sky

被引:31
作者
Whiting, AB
Hau, GKT
Irwin, M
机构
[1] USN Acad, Dept Phys, Annapolis, MD 21402 USA
[2] Catholic Univ Chile, Fac Fis & Astron, Santiago, Chile
[3] Univ Cambridge, Inst Astron, Cambridge CB2 1TN, England
关键词
galaxies : dwarf; Local Group; planetary nebulae : general; reflection nebulae; surveys;
D O I
10.1086/340037
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present observations of 82 Local Group dwarf galaxy candidates, of which 62 were chosen visually from ESO-SRC survey plates of the southern sky (32 of which were not previously cataloged) and the rest suggested by various sources in the literature. Two are the Local Group galaxies Antlia and Cetus; nine are more distant galaxies, though still within a few megaparsecs; 45 are background galaxies; seven are planetary ( or other emission) nebulae; 15 are reflection or other Galactic nebulae; two are galaxy clusters; one is a Galactic star cluster; and one is a misidentified star. We conclude that there is no large population of faint Local Group dwarf galaxies of any familiar type awaiting discovery. We point out the danger of relying on a single type of data to reach conclusions about an object.
引用
收藏
页码:123 / 146
页数:24
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