The ATCA/VLA OH 1612 MHz survey .2. Observations of the galactic disk region

被引:85
作者
Sevenster, MN
Chapman, JM
Habing, HJ
Killeen, NEB
Lindqvist, M
机构
[1] ANGLO AUSTRALIAN OBSERV,EPPING,NSW 2121,AUSTRALIA
[2] AUSTRALIA TELESCOPE NATL FACIL,EPPING,NSW 2121,AUSTRALIA
[3] ONSALA SPACE OBSERV,S-43992 ONSALA,SWEDEN
来源
ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES | 1997年 / 124卷 / 03期
关键词
surveys; stars; AGB and post-AGB; Galaxy; stellar content; radio lines;
D O I
10.1051/aas:1997365
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present observations of the region between -45 degrees less than or equal to l less than or equal to -10 degrees and \b\ less than or equal to 3 degrees in the OH 1612.231 MHz line, taken in 1994 January with the Australia Telescope Compact Array (ATCA)(1). These observations are part of a larger survey, covering \I\ less than or equal to 45 degrees and \b\ less than or equal to 3 degrees, with the ATCA and the Very Large Array. In a previous article we have discussed the observational strategy in detail. In this paper we present only the objects found in this part of the survey. The region was systematically searched for OH-maser emission and was covered completely with 910 pointing centres separated by 30'. We found 202 OH-masing objects, 112 of which are new detections. Out of the 202 objects, 166 have a standard double-peaked spectral profile, 32 a single-peaked profile and 4 objects have non-standard or irregular profiles. In this article we analyse the data statistically and give classifications and identifications with known sources where possible. The astrophysical, kinematical, morphological. and dynamical properties of subsets of the data will be addressed in future articles(2).
引用
收藏
页码:509 / 515
页数:7
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