气候变化领域集成服务门户(CCPortal): Dust formation in a galaxy with primitive abundances

CCPortal

DOI	10.1126/science.1165626
	Dust formation in a galaxy with primitive abundances
	Sloan G.C.; Matsuura M.; Zijlstra A.A.; Lagadec E.; Groenewegen M.A.T.; Wood P.R.; Szyszka C.; Bernard-Salas J.; Van Loon J.Th.
发表日期	2009
ISSN	0036-8075
起始页码	353
结束页码	355
卷号	323 期号:5912
英文摘要	Interstellar dust plays a crucial role in the evolution of galaxies. It governs the chemistry and physics of the interstellar medium. In the local universe, dust forms primarily in the ejecta from stars, but its composition and origin in galaxies at very early times remain controversial. We report observational evidence of dust forming around a carbon star in a nearby galaxy with a low abundance of heavy elements, 25 times lower than the solar abundance. The production of dust by a carbon star in a galaxy with such primitive abundances raises the possibility that carbon stars contributed carbonaceous dust in the early universe.
英文关键词	acetylene; carbon; carbon monoxide; metal; oxygen; polycyclic aromatic hydrocarbon; astrophysics; carbon; cosmochemistry; heavy metal; interplanetary dust; article; astronomy; dust; infrared radiation; model; priority journal
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/245517
作者单位	Department of Astronomy, Cornell University, Ithaca, NY 14853-6801, United States; National Optical Astronomical Observatory of Japan, Osawa 2-21-1, Mitaka, Tokyo 181-8588, Japan; Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom; School of Physics and Astronomy, University of Manchester, Post Office Box 88, Manchester M6O 1QD, United Kingdom; Royal Observatory of Belgium, Ringlaan 3, B-1180 Brussels, Belgium; Research School of Astronomy and Astrophysics, Australian National University, Cotter Road, Weston Creek, ACT 2611, Australia; Astrophysics Group, Lennard-Jones Laboratories, Keele University, Staffordshire ST5 5BG, United Kingdom
推荐引用方式 GB/T 7714	Sloan G.C.,Matsuura M.,Zijlstra A.A.,et al. Dust formation in a galaxy with primitive abundances[J],2009,323(5912).
APA	Sloan G.C..,Matsuura M..,Zijlstra A.A..,Lagadec E..,Groenewegen M.A.T..,...&Van Loon J.Th..(2009).Dust formation in a galaxy with primitive abundances.Science,323(5912).
MLA	Sloan G.C.,et al."Dust formation in a galaxy with primitive abundances".Science 323.5912(2009).