The emission structure of formaldehyde megamasers

doi:10.1093/mnras/stx895

	The emission structure of formaldehyde megamasers
	Baan, Willem A.1,2; An, Tao 1,2,3; Kloeckner, Hans-Rainer 4; Thomasson, Peter 5
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2017-07-01
卷号	469 期号:1 页码:916-929
关键词	masers stars: formation ISM: molecules galaxies: individual: IC 860, IRAS 15107+0724, Arp 220 galaxies: ISM radio lines: ISM
ISSN号	0035-8711
DOI	10.1093/mnras/stx895
通讯作者	Baan, Willem A.(baan@astron.nl) ; An, Tao(antao@shao.ac.cn) ; Kloeckner, Hans-Rainer(hrk@mpifr-bonn.mpg.de)
英文摘要	The formaldehyde megamaser emission has been mapped for the three host galaxies IC 860, IRAS 15107+0724 and Arp 220. Elongated emission components are found at the nuclear centres of all galaxies with an extent ranging between 30 and 100 pc. These components are superposed on the peaks of the nuclear continuum. Additional isolated emission components are found superposed in the outskirts of the radio continuum structure. The brightness temperatures of the detected features ranges from 0.6 to 13.4 x 10(4) K, which confirms their masering nature. The masering scenario is interpreted as amplification of the radio continuum by foreground molecular gas that is pumped by far-infrared radiation fields in these starburst environments of the host galaxies.
WOS关键词	WATER-VAPOR MASER ; OH MEGAMASER ; STAR-FORMATION ; MOLECULAR GAS ; ARP 220 ; STARBURST GALAXIES ; VLBI OBSERVATIONS ; VLA OBSERVATIONS ; METHANOL MASERS ; LINE SPECTRA
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000402825000063
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/23048]
专题	中国科学院紫金山天文台
通讯作者	Baan, Willem A.; An, Tao; Kloeckner, Hans-Rainer
作者单位	1.Netherlands Inst Radio Astron ASTRON, NL-7991 PD Dwingeloo, Netherlands 2.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 3.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China 4.Max Planck Inst Radioastron, 69 Hugel, D-5300 Bonn, Germany 5.Univ Manchester, Jodrell Bank Observ, Macclesfield SK11 9DL, Cheshire, England
推荐引用方式 GB/T 7714	Baan, Willem A.,An, Tao,Kloeckner, Hans-Rainer,et al. The emission structure of formaldehyde megamasers[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,469(1):916-929.
APA	Baan, Willem A.,An, Tao,Kloeckner, Hans-Rainer,&Thomasson, Peter.(2017).The emission structure of formaldehyde megamasers.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,469(1),916-929.
MLA	Baan, Willem A.,et al."The emission structure of formaldehyde megamasers".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 469.1(2017):916-929.