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A 6.7 GHz Methanol Maser Survey at High Galactic Latitudes

文献类型：期刊论文

作者Wang, Jun-Zhi2,3; Yang, Kai3,4; Chen, Xi2,3,5; Shen, Zhi-Qiang2,3; Li, Xiao-Qiong3,4; Jiang, Dong-Rong2,3; Li, Juan2,3; Dong, Jian2,3; Wu, Ya-Jun2,3; Qiao, Hai-Hua3,4
刊名ASTROPHYSICAL JOURNAL
出版日期2017-09-10
卷号846期号:2
关键词Ism: Molecules Masers Radio Lines: Ism Stars: Formation
DOI10.3847/1538-4357/aa8668
文献子类Article
英文摘要We performed a systematic 6.7 GHz Class II methanol maser survey using the Shanghai Tianma Radio Telescope toward targets selected from the all-sky Wide-Field Infrared Survey Explorer (WISE) point catalog. In this paper, we report the results from the survey of those at high Galactic latitudes, i.e., vertical bar b vertical bar > 2 degrees. Of 1473 selected WISE point sources at high latitude, 17 point positions that were actually associated with 12 sources were detected with maser emission, reflecting the rarity (1%-2%) of methanol masers in the region away from the Galactic plane. Out of the 12 sources, 3 are detected for the first time. The spectral energy distribution at infrared bands shows that these new detected masers occur in the massive star-forming regions. Compared to previous detections, the methanol maser changes significantly in both spectral profiles and flux densities. The infrared WISE images show that almost all of these masers are located in the positions of the bright WISE point sources. Compared to the methanol masers at the Galactic plane, these high-latitude methanol masers provide good tracers for investigating the physics and kinematics around massive young stellar objects, because they are believed to be less affected by the surrounding cluster environment.
WOS关键词H-II REGIONS ; STAR-FORMING REGIONS ; IRAS-SELECTED SOURCES ; VLBI OBSERVATIONS ; HIGH-RESOLUTION ; CATALOG ; DISCOVERY ; VARIABILITY ; EMISSION ; TRACERS
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000410687700008
资助机构National Natural Science Foundation of China(11590780 ; National Natural Science Foundation of China(11590780 ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences (CAS)(XDB09000000) ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences (CAS)(XDB09000000) ; Knowledge Innovation Program of the Chinese Academy of Sciences(KJCX1-YW-18) ; Knowledge Innovation Program of the Chinese Academy of Sciences(KJCX1-YW-18) ; Scientific Program of Shanghai Municipality(08DZ1160100) ; Scientific Program of Shanghai Municipality(08DZ1160100) ; Key Laboratory for Radio Astronomy, CAS ; Key Laboratory for Radio Astronomy, CAS ; 11590781 ; 11590781 ; 11590784) ; 11590784) ; National Natural Science Foundation of China(11590780 ; National Natural Science Foundation of China(11590780 ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences (CAS)(XDB09000000) ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences (CAS)(XDB09000000) ; Knowledge Innovation Program of the Chinese Academy of Sciences(KJCX1-YW-18) ; Knowledge Innovation Program of the Chinese Academy of Sciences(KJCX1-YW-18) ; Scientific Program of Shanghai Municipality(08DZ1160100) ; Scientific Program of Shanghai Municipality(08DZ1160100) ; Key Laboratory for Radio Astronomy, CAS ; Key Laboratory for Radio Astronomy, CAS ; 11590781 ; 11590781 ; 11590784) ; 11590784)
源URL[http://ir.bao.ac.cn/handle/114a11/20111]  
专题国家天文台_射电天文研究部
作者单位1.Chinese Acad Sci, Natl Astron Observ, A20 Datun Rd, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Key Lab Radio Astron, Beijing, Peoples R China
3.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
4.Univ Chinese Acad Sci, 19A Yuquanlu, Beijing 100049, Peoples R China
5.Guangzhou Univ, Ctr Astrophys, Guangzhou 510006, Guangdong, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Jun-Zhi,Yang, Kai,Chen, Xi,et al. A 6.7 GHz Methanol Maser Survey at High Galactic Latitudes[J]. ASTROPHYSICAL JOURNAL,2017,846(2).
APA Wang, Jun-Zhi.,Yang, Kai.,Chen, Xi.,Shen, Zhi-Qiang.,Li, Xiao-Qiong.,...&Ren,Zhiyuan.(2017).A 6.7 GHz Methanol Maser Survey at High Galactic Latitudes.ASTROPHYSICAL JOURNAL,846(2).
MLA Wang, Jun-Zhi,et al."A 6.7 GHz Methanol Maser Survey at High Galactic Latitudes".ASTROPHYSICAL JOURNAL 846.2(2017).

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