ACCURATE OH MASER POSITIONS FROM THE SPLASH PILOT REGION

doi:10.3847/1538-4365/227/2/26

	ACCURATE OH MASER POSITIONS FROM THE SPLASH PILOT REGION
	Qiao, Hai-Hua 1,2,3,4; Walsh, Andrew J.3; Green, James A.5; Breen, Shari L.5,6; Dawson, J. R.5,7,8; Ellingsen, Simon P.9; Gomez, Jose F.10; Jordan, Christopher H.3,11; Shen, Zhi-Qiang 1,4; Lowe, Vicki 12
刊名	ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
	2016-12-01
卷号	227 期号:2 页码:22
关键词	catalogs ISM: molecules masers radio lines: ISM stars: AGB and post-AGB stars: formation
ISSN号	0067-0049
DOI	10.3847/1538-4365/227/2/26
通讯作者	Qiao, Hai-Hua(qiaohh@shao.ac.cn)
英文摘要	We report on high spatial resolution observations, using the Australia Telescope Compact Array (ATCA), of ground-state OH masers. These observations were carried out toward 196 pointing centers previously identified in the Southern Parkes Large-Area Survey in Hydroxyl (SPLASH) pilot region, between Galactic longitudes of 334 degrees and 344 degrees and Galactic latitudes of -2 degrees and +2 degrees. Supplementing our data with data from the MAGMO (Mapping the Galactic Magnetic field through OH masers) survey, we find maser emission toward 175 of the 196 target fields. We conclude that about half of the 21 nondetections were due to intrinsic variability. Due to the superior sensitivity of the followup ATCA observations, and the ability to resolve nearby sources into separate sites, we have identified 215 OH maser sites toward the 175 fields with detections. Among these 215 OH maser sites, 111 are new detections. After comparing the positions of these 215 maser sites to the literature, we identify 122 (57%) sites associated with evolved stars (one of which is a planetary nebula), 64 (30%) with star formation, two sites with supernova remnants, and 27 (13%) of unknown origin. The infrared colors of evolved star sites with symmetric maser profiles tend to be redder than those of evolved star sites with asymmetric maser profiles, which may indicate that symmetric sources are generally at an earlier evolutionary stage.
WOS关键词	INTERSTELLAR HYDROXYL MASERS ; RADIO-CONTINUUM OBSERVATIONS ; EXTENDED GREEN OBJECTS ; II METHANOL MASERS ; 1612 MHZ SURVEY ; PLANETARY-NEBULAE ; EVOLVED STARS ; EMISSION ; CATALOG ; GALAXY
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000391441600001
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/22748]
专题	中国科学院紫金山天文台
通讯作者	Qiao, Hai-Hua
作者单位	1.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China 2.Univ Chinese Acad Sci, 19A Yuquanlu, Beijing 100049, Peoples R China 3.Curtin Univ, Int Ctr Radio Astron Res, GPO Box U1987, Perth, WA 6845, Australia 4.Chinese Acad Sci, Key Lab Radio Astron, Beijing 100864, Peoples R China 5.CSIRO Astron & Space Sci, Australia Telescope Natl Facil, POB 76, Epping, NSW 2121, Australia 6.Univ Sydney, Sch Phys, Sydney Inst Astron SIfA, Sydney, NSW 2006, Australia 7.Macquarie Univ, Dept Phys & Astron, N Ryde, NSW 2109, Australia 8.Macquarie Univ, MQ Res Ctr Astron Astrophys & Astrophoton, N Ryde, NSW 2109, Australia 9.Univ Tasmania, Sch Phys Sci, Private Bag 37, Hobart, Tas 7001, Australia 10.CSIC, Inst Astrofis Andalucia, Glorieta Astron S-N, E-18008 Granada, Spain
推荐引用方式 GB/T 7714	Qiao, Hai-Hua,Walsh, Andrew J.,Green, James A.,et al. ACCURATE OH MASER POSITIONS FROM THE SPLASH PILOT REGION[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2016,227(2):22.
APA	Qiao, Hai-Hua.,Walsh, Andrew J..,Green, James A..,Breen, Shari L..,Dawson, J. R..,...&Jones, Paul A..(2016).ACCURATE OH MASER POSITIONS FROM THE SPLASH PILOT REGION.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,227(2),22.
MLA	Qiao, Hai-Hua,et al."ACCURATE OH MASER POSITIONS FROM THE SPLASH PILOT REGION".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 227.2(2016):22.