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A 6.7 GHz Methanol Maser Survey at High Galactic Latitudes
Yang, Kai1,2; Chen, Xi1,3,4; Shen, Zhi-Qiang1,4; Li, Xiao-Qiong1,2; Wang, Jun-Zhi1,4; Jiang, Dong-Rong1,4; Li, Juan1,4; Dong, Jian1,4; Wu, Ya-Jun1,4; Qiao, Hai-Hua1,2; Ren, Zhiyuan4,5
2017-09-10
发表期刊ASTROPHYSICAL JOURNAL
卷号846期号:2
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.
文章类型Article
关键词Ism: Molecules Masers Radio Lines: Ism Stars: Formation
WOS标题词Science & Technology ; Physical Sciences
资助者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)
DOI10.3847/1538-4357/aa8668
关键词[WOS]H-II REGIONS ; STAR-FORMING REGIONS ; IRAS-SELECTED SOURCES ; VLBI OBSERVATIONS ; HIGH-RESOLUTION ; CATALOG ; DISCOVERY ; VARIABILITY ; EMISSION ; TRACERS
收录类别SCI
语种英语
资助者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)
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000410687700008
引用统计
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/20111
专题射电天文研究部
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.Guangzhou Univ, Ctr Astrophys, Guangzhou 510006, Guangdong, Peoples R China
4.Chinese Acad Sci, Key Lab Radio Astron, Beijing, Peoples R China
5.Chinese Acad Sci, Natl Astron Observ, A20 Datun Rd, Beijing 100012, Peoples R China
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Yang, Kai,Chen, Xi,Shen, Zhi-Qiang,et al. A 6.7 GHz Methanol Maser Survey at High Galactic Latitudes[J]. ASTROPHYSICAL JOURNAL,2017,846(2).
APA Yang, Kai.,Chen, Xi.,Shen, Zhi-Qiang.,Li, Xiao-Qiong.,Wang, Jun-Zhi.,...&Ren, Zhiyuan.(2017).A 6.7 GHz Methanol Maser Survey at High Galactic Latitudes.ASTROPHYSICAL JOURNAL,846(2).
MLA Yang, Kai,et al."A 6.7 GHz Methanol Maser Survey at High Galactic Latitudes".ASTROPHYSICAL JOURNAL 846.2(2017).
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