The low density and magnetization of a massive galaxy halo exposed by a fast radio burst

doi:10.1126/science.aay0073

GSTDTAP > 地球科学

DOI	10.1126/science.aay0073
	The low density and magnetization of a massive galaxy halo exposed by a fast radio burst
	Prochaska, J. Xavier 1,2; Macquart, Jean-Pierre 3; McQuinn, Matthew 4; Simha, Sunil 1; Shannon, Ryan M.5; Day, Cherie K.5,6; Marnoch, Lachlan 6,7; Ryder, Stuart 7; Deller, Adam 5; Bannister, Keith W.6; Bhandari, Shivani 6; Bordoloi, Rongmon 8; Bunton, John 6; Cho, Hyerin 9; Flynn, Chris 5; Mahony, Elizabeth K.6; Phillips, Chris 6; Qiu, Hao 10; Tejos, Nicolas 11
	2019-10-11
发表期刊	SCIENCE
ISSN	0036-8075
EISSN	1095-9203
出版年	2019
卷号	366 期号:6462 页码:231-+
文章类型	Article
语种	英语
国家	USA; Japan; Australia; South Korea; Chile
英文摘要	Present-day galaxies are surrounded by cool and enriched halo gas extending for hundreds of kiloparsecs. This halo gas is thought to be the dominant reservoir of material available to fuel future star formation, but direct constraints on its mass and physical properties have been difficult to obtain. We report the detection of a fast radio burst (FRB 181112), localized with arcsecond precision, that passes through the halo of a foreground galaxy. Analysis of the burst shows that the halo gas has low net magnetization and turbulence. Our results imply predominantly diffuse gas in massive galactic halos, even those hosting active supermassive black holes, contrary to some previous results.
领域	地球科学 ; 气候变化 ; 资源环境
收录类别	SCI-E
WOS记录号	WOS:000490014700041
WOS关键词	CIRCUMGALACTIC MEDIUM ; HOST GALAXY ; TURBULENCE ; IMPACT ; CONSTRAINTS ; INSTABILITY ; EFFICIENT ; EMISSION ; SOFTWARE ; REDSHIFT
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/202526
专题	地球科学资源环境科学气候变化
作者单位	1.Univ Calif Santa Cruz, Univ Calif Observ, Lick Observ, Santa Cruz, CA 95064 USA; 2.Kavli Inst Phys & Math Universe, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778583, Japan; 3.Curtin Univ, Int Ctr Radio Astron Res, Bentley, WA 6102, Australia; 4.Univ Washington, Dept Astron, Seattle, WA 98195 USA; 5.Swinburne Univ Technol, Ctr Astrophys & Supercomp, Hawthorn, Vic 3122, Australia; 6.Australia Telescope Natl Facil, Commonwealth Sci & Ind Res Org, POB 76, Epping, NSW 1710, Australia; 7.Macquarie Univ, Dept Phys & Astron, N Ryde, NSW 2109, Australia; 8.North Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA; 9.Gwangju Inst Sci & Technol, Sch Phys & Chem, Gwangju 61005, South Korea; 10.Univ Sydney, Sch Phys, Sydney Inst Astron, Sydney, NSW 2006, Australia; 11.Pontificia Univ Catolica Valparaiso, Inst Fis, Valparaiso 4059, Chile
推荐引用方式 GB/T 7714	Prochaska, J. Xavier,Macquart, Jean-Pierre,McQuinn, Matthew,et al. The low density and magnetization of a massive galaxy halo exposed by a fast radio burst[J]. SCIENCE,2019,366(6462):231-+.
APA	Prochaska, J. Xavier.,Macquart, Jean-Pierre.,McQuinn, Matthew.,Simha, Sunil.,Shannon, Ryan M..,...&Tejos, Nicolas.(2019).The low density and magnetization of a massive galaxy halo exposed by a fast radio burst.SCIENCE,366(6462),231-+.
MLA	Prochaska, J. Xavier,et al."The low density and magnetization of a massive galaxy halo exposed by a fast radio burst".SCIENCE 366.6462(2019):231-+.