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题名: SiO and CH3OH mega-masers in NGC 1068
作者: Wang, Junzhi1, 2, 3; Zhang, Jiangshui4; Gao Yu(高煜)3, 5; Zhang, Zhi-Yu6; Li, Di7, 8; Fang Min(房敏)5; Shi, Yong2, 9
刊名: NATURE COMMUNICATIONS
出版日期: 2014-11-01
卷号: 5, 期号:0, 页码:5449
学科分类: 天文和天体物理
DOI: 10.1038/ncomms6449
文章类型: Article
英文摘要: Maser is an acronym for microwave amplification by stimulated emission of radiation; in astronomy mega-masers are masers in galaxies that are >= 10(6) times more luminous than typical galactic maser sources. Observational studies of mega-masers can help us to understand their origins and characteristics. More importantly, mega-masers can be used as diagnostic tracers to probe the physical properties of their parent galaxies. Since the late 1970s, only three types of molecules have been found to form mega-masers: H2O, OH and H2CO. Here we report the detection of both SiO and CH3OH mega-masers near the centre of Seyfert 2 galaxy NGC 1068 at millimetre wavelengths, obtained using the IRAM 30-m telescope. We argue that the SiO mega-maser originated from the nuclear disk and the CH3OH mega-maser originated from shock fronts. High-resolution observations in the future will enable us to investigate AGN feedback and determine the masses of central supermassive black holes in such galaxies.
WOS标题词: Science & Technology
类目[WOS]: Multidisciplinary Sciences
研究领域[WOS]: Science & Technology - Other Topics
关键词[WOS]: MOLECULAR LINE EMISSION ; METHANOL MASERS ; MAGELLANIC CLOUDS ; GALAXIES ; SEARCH ; GAS ; OH ; NGC-1068 ; DISTANCE ; REGIONS
收录类别: SCI
语种: 英语
WOS记录号: WOS:000345909200002
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/11566
Appears in Collections:星系中的恒星形成研究团组_期刊论文

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作者单位: 1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
2.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Jiangsu, Peoples R China
3.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China
4.GuangZhou Univ, Ctr Astrophys, Guangzhou 510006, Guangdong, Peoples R China
5.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
6.Univ Edinburgh, Inst Astron, Edinburgh EH9 3HJ, Midlothian, Scotland
7.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
8.Space Sci Inst, Boulder, CO 80301 USA
9.Nanjing Univ, Key Lab Modern Astron & Astrophys, Minist Educ, Nanjing 210093, Jiangsu, Peoples R China

Recommended Citation:
Wang, Junzhi; Zhang, Jiangshui; Gao, Yu; Zhang, Zhi-Yu; Li, Di; Fang, Min; Shi, Yong.SiO and CH3OH mega-masers in NGC 1068,NATURE COMMUNICATIONS,2014,5(0):5449
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文件名: 201402011SiO and CH3OH mega-masers in NGC 1068.pdf
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