气候变化领域集成服务门户(CCPortal): Anatomy of the photodissociation region in the Orion Bar

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DOI	10.1126/science.262.5130.86
	Anatomy of the photodissociation region in the Orion Bar
	Tielens A.G.G.M.; Meixner M.M.; Van Der Werf P.P.; Bregman J.; Tauber J.A.; Stutzki J.; Rank D.
发表日期	1993
ISSN	0036-8075
起始页码	86
结束页码	89
卷号	262 期号:55
英文摘要	Much of the interstellar gas resides in photodissociation regions whose chemistry and energy balance is controlled by the flux of far-ultraviolet radiation upon them. These photons can ionize and dissociate molecules and heat the gas through the photoelectric effect working on dust grains. These regions have been extensively modeled theoretically, but detailed observational studies are few. Mapping of the prominent Orion Bar photodissociation region at wavelengths corresponding to the carbon-hydrogen stretching mode of polycyclic aromatic hydrocarbons, the 1-0 S(1) line of molecular hydrogen, and the J=1-0 rotational line of carbon monoxide allows the penetration of the far-ultraviolet radiation into the cloud to be traced. The results strongly support the theoretical models and show conclusively that the incident far-ultraviolet radiation field, not shocks as has sometimes been proposed, is responsible for the emission in the Orion Bar.
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/245752
作者单位	MS 245-3 NASA Ames Research Center, Moffett Field, CA 94035-1000, United States; Radioastronomy Laboratory, University of California, Berkeley, CA 94720, United States; Max Planck Institut für Extraterrestrische Physik, Giessenbach Strasse, D-8046 Garching bei München, Germany; ESA Astrophysics Division, ESTEC, P.O. Box 299, NL-2200 AG Noordwijk, Netherlands; I. Physikalisches Institut, Universität Köln, Zülpicherstrasse 77, W-5000 Koln 41, Germany; Lick Observatories, University of California, Santa Cruz, CA 95060, United States
推荐引用方式 GB/T 7714	Tielens A.G.G.M.,Meixner M.M.,Van Der Werf P.P.,et al. Anatomy of the photodissociation region in the Orion Bar[J],1993,262(55).
APA	Tielens A.G.G.M..,Meixner M.M..,Van Der Werf P.P..,Bregman J..,Tauber J.A..,...&Rank D..(1993).Anatomy of the photodissociation region in the Orion Bar.Science,262(55).
MLA	Tielens A.G.G.M.,et al."Anatomy of the photodissociation region in the Orion Bar".Science 262.55(1993).