气候变化领域集成服务门户(CCPortal): Evidence for a low surface temperature on Pluto from millimeter-wave thermal emission measurements

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DOI	10.1126/science.261.5129.1713
	Evidence for a low surface temperature on Pluto from millimeter-wave thermal emission measurements
	Stern S.A.; Weintraub D.A.; Festou M.C.
发表日期	1993
ISSN	0036-8075
起始页码	1713
结束页码	1716
卷号	261 期号:5129
英文摘要	Thermal continuum emission from the Pluto-Charon system has been detected at wavelengths of 800 and 1300 micrometers, and significant upper limits have been obtained at 450 and 1100 micrometers. After the subtraction of emission from Charon, the deduced surface temperature of much of Pluto is between 30 and 44 kelvin, probably near 35 to 37 kelvin. This range is significantly cooler than what radiative equilibrium models have suggested and cooler than the surface temperature derived by the Infrared Astronomy Satellite. The low temperature indicates that methane cannot be present at the microbar pressure levels indicated by the 1988 stellar occultation measurements and that the methane features in Pluto's spectrum are from solid, not gas-phase, absorptions. This result is evidence that Pluto's atmosphere is dominated by nitrogen or carbon monoxide rather than methane.
英文关键词	Carbon monoxide; Extraterrestrial atmospheres; Interplanetary flight; Methane; Nitrogen; Spectroscopic analysis; Temperature measurement; Millimeter-wave thermal emission; Planet Pluto; Surface temperature; Planets
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/245606
作者单位	Space Sciences Department, Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78238, United States; Department of Physics and Astronomy, Vanderbilt University, Nashville, TN 37235, United States; Observatoire Midi-Pyrénées, F-31400 Toulouse, France
推荐引用方式 GB/T 7714	Stern S.A.,Weintraub D.A.,Festou M.C.. Evidence for a low surface temperature on Pluto from millimeter-wave thermal emission measurements[J],1993,261(5129).
APA	Stern S.A.,Weintraub D.A.,&Festou M.C..(1993).Evidence for a low surface temperature on Pluto from millimeter-wave thermal emission measurements.Science,261(5129).
MLA	Stern S.A.,et al."Evidence for a low surface temperature on Pluto from millimeter-wave thermal emission measurements".Science 261.5129(1993).