气候变化领域集成服务门户(CCPortal): Phosphorus in the young supernova remnant Cassiopeia A

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DOI	10.1126/science.1243823
	Phosphorus in the young supernova remnant Cassiopeia A
	Koo B.-C.; Lee Y.-H.; Moon D.-S.; Yoon S.-C.; Raymond J.C.
发表日期	2013
ISSN	0036-8075
起始页码	1346
结束页码	1348
卷号	342 期号:6164
英文摘要	Phosphorus (31P), which is essential for life, is thought to be synthesized in massive stars and dispersed into interstellar space when these stars explode as supernovae (SNe). Here, we report on near-infrared spectroscopic observations of the young SN remnant Cassiopeia A, which show that the abundance ratio of phosphorus to the major nucleosynthetic product iron (56Fe) in SN material is up to 100 times the average ratio of the Milky Way, confirming that phosphorus is produced in SNe. The observed range is compatible with predictions from SN nucleosynthetic models but not with the scenario in which the chemical elements in the inner SN layers are completely mixed by hydrodynamic instabilities during the explosion.
英文关键词	iron; phosphorus; extraterrestrial matter; hydrodynamics; numerical model; phosphorus; article; astronomy; explosion; hydrodynamics; near infrared spectroscopy; observational study; prediction; priority journal; space; supernova; Cassiopea
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/244386
作者单位	Department of Physics and Astronomy, Seoul National University, Seoul 151-747, South Korea; Department of Astronomy and Astrophysics, University of Toronto, Toronto, ON M5S 3H4, Canada; Space Radiation Laboratory, California Institute of Technology, Pasadena, CA 91125, United States; Korea Astronomy and Space Science Institute, Daejeon 305-348, South Korea; Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, United States
推荐引用方式 GB/T 7714	Koo B.-C.,Lee Y.-H.,Moon D.-S.,et al. Phosphorus in the young supernova remnant Cassiopeia A[J],2013,342(6164).
APA	Koo B.-C.,Lee Y.-H.,Moon D.-S.,Yoon S.-C.,&Raymond J.C..(2013).Phosphorus in the young supernova remnant Cassiopeia A.Science,342(6164).
MLA	Koo B.-C.,et al."Phosphorus in the young supernova remnant Cassiopeia A".Science 342.6164(2013).