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22 GHz H2O maser survey towards 221 BGPS sources
Xi, Hongwei1,2; Zhou, Jianjun1,3; Esimbek, Jarken1,3; Wu, Gang1,3; He, Yuxin1,2; Ji, Weiguang1; Tang, Xiaoke1,2
2015-11-01
Source PublicationMonthly Notices of the Royal Astronomical Society
ISSN0035-8711
Volume453Issue:4Pages:4203-4221
Contribution Rank1
AbstractWe performed a 22 GHz H2O maser survey towards 221 Bolocam Galactic Plane Survey (BGPS) sources. We detected 107 H2O masers, of which 12 are new. The detection rate is 48.4 per cent for our sample. We obtained the positions of five new H2O masers via On The Fly (OTF) observations. The detection rate of H2O masers is correlated with continuum emission fluxes of BGPS sources at far-infrared, sub-millimetre and millimetre wavelengths. We employed the classification of Dunham et al. to classify the evolutionary stage of BGPS sources into Group 0, 1, 2, and 3. The detection rate and velocity range of H2O masers increases as the BGPS sources evolve from Group 1 to Group 3. The BGPS sources associated with both H2O and CH3OH masers are more compact than that associated with either only H2O or only CH3OH masers. This indicates that the sources associated with both H2O and CH3OH masers are in relative later evolutionary stage. The detection rate of H2O masers towards BGPS sources displaying evidence of the collapse phenomenon is 62.1 per cent, which suggests that most BGPS sources showing indications of collapse phenomena contain ongoing active star formation activities.
Keywordmasers stars: formation ISM: molecules radio lines: ISM star-forming regions galactic plane survey msx source survey extended green objects methanol masers water maser molecular cloud point sources catalog ii. Astronomy & Astrophysics
SubtypeArticle
DOI10.1093/mnras/stv1935
URL查看原文
Indexed BySCI
Language英语
WOS KeywordSTAR-FORMING REGIONS ; GALACTIC PLANE SURVEY ; MSX SOURCE SURVEY ; EXTENDED GREEN OBJECTS ; METHANOL MASERS ; WATER MASER ; MOLECULAR CLOUD ; POINT SOURCES ; CATALOG ; II.
WOS IDWOS:000363651600063
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.xao.ac.cn/handle/45760611-7/3214
Collection射电天文研究室_恒星形成与演化研究团组
Affiliation1.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, 830011 Urumqi, China;
2.University of the Chinese Academy of Sciences, 100080 Beijing, China;
3.Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, Nanjing, JiangSu 210008, China
First Author AffilicationXinjiang Astronomical Observatory, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Xi, Hongwei,Zhou, Jianjun,Esimbek, Jarken,et al. 22 GHz H2O maser survey towards 221 BGPS sources[J]. Monthly Notices of the Royal Astronomical Society,2015,453(4):4203-4221.
APA Xi, Hongwei.,Zhou, Jianjun.,Esimbek, Jarken.,Wu, Gang.,He, Yuxin.,...&Tang, Xiaoke.(2015).22 GHz H2O maser survey towards 221 BGPS sources.Monthly Notices of the Royal Astronomical Society,453(4),4203-4221.
MLA Xi, Hongwei,et al."22 GHz H2O maser survey towards 221 BGPS sources".Monthly Notices of the Royal Astronomical Society 453.4(2015):4203-4221.
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