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DOI	10.1126/science.274.5291.1335
	Diffuse extreme-ultraviolet emission from the Coma cluster: Evidence for rapidly cooling gases at submegakelvin temperatures
	Lieu R.; Mittaz J.P.D.; Bowyer S.; Breen J.O.; Lockman F.J.; Murphy E.M.; Hwang C.-Y.
发表日期	1996
ISSN	0036-8075
起始页码	1335
结束页码	1338
卷号	274 期号:5291
英文摘要	The central region of the Coma cluster of galaxies was observed in the energy band from 0.065 to 0.245 kiloelectron volts by the Deep Survey telescope aboard the Extreme Ultraviolet Explorer. A diffuse emission halo of angular diameter ~30 arc minutes was detected. The extreme-ultraviolet (EUV) emission level exceeds that expected from the x-ray temperature gas in Coma. This hale suggests the presence of two more phases in the emitting gas, one at a temperature of ~2 x 106 kelvin and the other at ~8 x 105 kelvin. The letter phase cools rapidly and, in steady state, would have produced cold matter with a mass of ~1014 solar masses within the EUV halo. Although a similar EUV enhancement was discovered in the Virgo cluster, this detection in Coma applies to a noncooling flow system.
英文关键词	article; astronomy; cooling; gas; priority journal; temperature; ultraviolet radiation; X ray
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/244542
作者单位	Department of Physics, University of Alabama, Huntsville, AL 35899, United States; Mullard Space Science Laboratory, Holmbury St. Mary, Dorking, Surrey RH5 6NT, United Kingdom; Ctr. Extreme Ultraviolet Astrophys., University of California, Berkeley, CA 94720, United States; Astronomy Department, University of Virginia, Post Office Box 3818, Charlottesville, VA 22903, United States; National Radio Astronomy Observatory, Green Bank, WV 24944, United States
推荐引用方式 GB/T 7714	Lieu R.,Mittaz J.P.D.,Bowyer S.,et al. Diffuse extreme-ultraviolet emission from the Coma cluster: Evidence for rapidly cooling gases at submegakelvin temperatures[J],1996,274(5291).
APA	Lieu R..,Mittaz J.P.D..,Bowyer S..,Breen J.O..,Lockman F.J..,...&Hwang C.-Y..(1996).Diffuse extreme-ultraviolet emission from the Coma cluster: Evidence for rapidly cooling gases at submegakelvin temperatures.Science,274(5291).
MLA	Lieu R.,et al."Diffuse extreme-ultraviolet emission from the Coma cluster: Evidence for rapidly cooling gases at submegakelvin temperatures".Science 274.5291(1996).