气候变化领域集成服务门户(CCPortal): Molecular gas clumps from the destruction of icy bodies in the β pictoris debris disk

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DOI	10.1126/science.1248726
	Molecular gas clumps from the destruction of icy bodies in the β pictoris debris disk
	Dent W.R.F.; Wyatt M.C.; Roberge A.; Augereau J.-C.; Casassus S.; Corder S.; Greaves J.S.; De Gregorio-Monsalvo I.; Hales A.; Jackson A.P.; Meredith Hughes A.; Lagrange A.-M.; Matthews B.; Wilner D.
发表日期	2014
ISSN	0036-8075
起始页码	1490
结束页码	1492
卷号	343 期号:6178
英文摘要	Many stars are surrounded by disks of dusty debris formed in the collisions of asteroids, comets, and dwarf planets, but is gas also released in such events? Observations at submillimeter wavelengths of the archetypal debris disk around β Pictoris show that 0.3% of a Moon mass of carbon monoxide orbits in its debris belt. The gas distribution is highly asymmetric, with 30% found in a single clump 85 astronomical units from the star, in a plane closely aligned with the orbit of the inner planet, β Pictoris b. This gas clump delineates a region of enhanced collisions, either from a mean motion resonance with an unseen giant planet or from the remnants of a collision of Mars-mass planets.
英文关键词	carbon monoxide; silicate; water; asteroid; carbon monoxide; collision; Mars; molecular analysis; resonance; wavelength; article; astronomy; attenuation; beta pictoris debris disk; cosmological phenomena; field emission; icy body destruction; moon; motion; planet collision; priority journal; steady state; sun; velocity
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/243514
作者单位	Atacama Large Millimeter/submillimeter Array (ALMA) Santiago Central Offices, Alonso de Córdova 3107, Vitacura, Casilla 763 0355, Santiago, Chile; Institute of Astronomy, Madingley Road, Cambridge CB3 0HA, United Kingdom; Exoplanets and Stellar Astrophysics Lab, NASA Goddard Space Flight Center, Greenbelt, MD 20771, United States; Université Joseph Fourier-Grenoble 1, CNRS-Institut National des Sciences de l'Univers, Institut de Planétologie et d'Astrophysique de Grenoble, Grenoble F-38041, France; Departamento de Astronomía, Universidad de Chile, Casilla 36-D, Santiago, Chile; Department of Astronomy, University of St. Andrews, North Haugh, St. Andrews, United Kingdom; European Southern Observatory (ESO), Karl-Schwarzschild Strasse 2, 85748, Garching, Germany; School of Earth and Space Exploration, Arizona State University, ISTB4, 781 East Terrace Road, Tempe, AZ 85287-6004, United States; Department of Astronomy, Van Vleck Observatory, Wesleyan University, 96 Foss Hill Drive, Middletown, CT 06459, Unite...
推荐引用方式 GB/T 7714	Dent W.R.F.,Wyatt M.C.,Roberge A.,et al. Molecular gas clumps from the destruction of icy bodies in the β pictoris debris disk[J],2014,343(6178).
APA	Dent W.R.F..,Wyatt M.C..,Roberge A..,Augereau J.-C..,Casassus S..,...&Wilner D..(2014).Molecular gas clumps from the destruction of icy bodies in the β pictoris debris disk.Science,343(6178).
MLA	Dent W.R.F.,et al."Molecular gas clumps from the destruction of icy bodies in the β pictoris debris disk".Science 343.6178(2014).