The interstellar medium: the key component in galactic evolution and modern cosmology

doi:10.1088/1674-4527/19/2/17

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	The interstellar medium: the key component in galactic evolution and modern cosmology
	Heiles, Carl 1; Li, Di 2,3,4; Mcclure-Griffiths, Naomi 5; Qian, Lei 2,3; Liu, Shu 2,3
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2019-02-01
卷号	19 期号:2 页码:10
关键词	ISM: atoms ISM: individual (hydrogen) ISM: molecules ISM: evolution surveys
ISSN号	1674-4527
DOI	10.1088/1674-4527/19/2/17
英文摘要	The gases of the interstellar medium (ISM) possess orders of magnitude more mass than those of all the stars combined and are thus the prime component of the baryonic Universe. With L-band surface sensitivity even better than the planned phase one of the Square Kilometre Array (SKA1), the Five-hundred-meter Aperture Spherical radio Telescope (FAST) promises unprecedented insights into two of the primary components of ISM, namely, atomic hydrogen (HI) and the hydroxyl molecule (OH). Here, we discuss the evolving landscape of our understanding of ISM, particularly, its complex phases, the magnetic fields within, the so-called dark molecular gas (DMG), high velocity clouds and the connection between local and distant ISM. We lay out, in broad strokes, several expected FAST projects, including an all northern-sky high-resolution HI survey (22000 deg(2), 3' FWHM beam, 0.2 km s(-1)), targeted OH mapping, searching for absorption and maser signals, etc. Currently under commissioning, the commensal observing mode of FAST will be capable of simultaneously obtaining HI and pulsar data streams, making large-scale surveys in both science areas more efficient.
资助项目	National Key R&D Program of China[2017YFA0402600] ; CAS International Partnership Program[114A11KYSB20160008] ; National Natural Science Foundation of China[11725313]
WOS关键词	ABSORPTION-LINE SURVEY ; HIGH-VELOCITY CLOUDS ; MAGELLANIC STREAM ; GALAXY FORMATION ; OH ABSORPTION ; CO EMISSION ; GAS ; HI ; FIELD ; WARM
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
WOS记录号	WOS:000458412900002
资助机构	National Key R&D Program of China ; National Key R&D Program of China ; CAS International Partnership Program ; CAS International Partnership Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; CAS International Partnership Program ; CAS International Partnership Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; CAS International Partnership Program ; CAS International Partnership Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; CAS International Partnership Program ; CAS International Partnership Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/24999]
专题	中国科学院国家天文台
通讯作者	Heiles, Carl
作者单位	1.Univ Calif Berkeley, Dept Astron, 601 Campbell Hall 3411, Berkeley, CA 94720 USA 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China 3.Chinese Acad Sci, Key Lab FAST, Natl Astron Observ, Beijing 100101, Peoples R China 4.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 101408, Peoples R China 5.Australian Natl Univ, Res Sch Astron & Astrophys, Canberra, ACT 2611, Australia
推荐引用方式 GB/T 7714	Heiles, Carl,Li, Di,Mcclure-Griffiths, Naomi,et al. The interstellar medium: the key component in galactic evolution and modern cosmology[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2019,19(2):10.
APA	Heiles, Carl,Li, Di,Mcclure-Griffiths, Naomi,Qian, Lei,&Liu, Shu.(2019).The interstellar medium: the key component in galactic evolution and modern cosmology.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,19(2),10.
MLA	Heiles, Carl,et al."The interstellar medium: the key component in galactic evolution and modern cosmology".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 19.2(2019):10.