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DOI	10.1126/science.275.5308.1900
	The activity and size of the nucleus of Comet Hale-Bopp (C/1995 O1)
	Weaver H.A.; Feldman P.D.; A'Hearn M.F.; Arpigny C.; Brandt J.C.; Festou M.C.; Haken M.; McPhate J.B.; Stern S.A.; Tozzi G.P.
发表日期	1997
ISSN	0036-8075
起始页码	1900
结束页码	1904
卷号	275 期号:5308
英文摘要	Analysis of Hubble Space Telescope (HST) images of comet Hale-Bopp (C/1995 O1) suggests that the effective diameter of the nucleus is between 27 to 42 kilometers, which is at least three times larger than that of comet P/Halley. The International Ultraviolet Explorer and HST spectra showed emissions from OH (a tracer of H2O) and CS (a tracer of CS2) starting in April 1996, and from the CO Cameron system (which primarily traces CO2) starting in June 1996. The variation of the H2O production rate with heliocentric distance was consistent with sublimation of an icy body near its subsolar point. The heliocentric variation in the production rates of CS2 and dust was different from that of H2O, which implies that H2O sublimation did not control the CS2 or dust production during these observations.
英文关键词	carbon dioxide; carbon disulfide; ice; water; article; astronomy; brightness; device; dust; gas; priority journal; spectroscopy; ultraviolet radiation; Carbon Dioxide; Carbon Disulfide; Cosmic Dust; Meteoroids; Spectrum Analysis; Water; comet Hale-Bopp; cometary nucleus; Hubble telescope
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/245980
作者单位	Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218, United States; Department of Astronomy, University of Maryland, College Park, MD 20742, United States; Institut d'Astrophysique, Université de Liège, B-4000 Liège, Belgium; Lab. for Atmosph. and Space Physics, University of Colorado, Boulder, CO 80309, United States; Observ. Midi-Pyrénées, 14 avenue E. Belin, F-31400, Toulouse, France; Southwest Research Institute, Space Science Department, Boulder Extension Office, 1050 Walnut Drive, Boulder, CO 80302, United States; Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, I-50125, Florence, Italy
推荐引用方式 GB/T 7714	Weaver H.A.,Feldman P.D.,A'Hearn M.F.,et al. The activity and size of the nucleus of Comet Hale-Bopp (C/1995 O1)[J],1997,275(5308).
APA	Weaver H.A..,Feldman P.D..,A'Hearn M.F..,Arpigny C..,Brandt J.C..,...&Tozzi G.P..(1997).The activity and size of the nucleus of Comet Hale-Bopp (C/1995 O1).Science,275(5308).
MLA	Weaver H.A.,et al."The activity and size of the nucleus of Comet Hale-Bopp (C/1995 O1)".Science 275.5308(1997).