气候变化领域集成服务门户(CCPortal): Water in Betelgeuse and Antares

CCPortal

DOI	10.1126/science.279.5352.844
	Water in Betelgeuse and Antares
	Jennings D.E.; Sada P.V.
发表日期	1998
ISSN	0036-8075
起始页码	844
结束页码	847
卷号	279 期号:5352
英文摘要	Absorption lines of hot water have been identified in the infrared spectra of Betelgeuse (α Orionis) and Antares (α Scorpii) near 12.3 micrometers (811 to 819 wavenumbers). The water lines originate in the atmospheres of the stars, not in their circumstellar material. The spectra are similar in structure to umbral sunspot spectra. Pure rotation water lines of this type will occur throughout the spectra of cool stars at wavelengths greater than 10 micrometers. From the water spectra, the upper limit for the temperature in the line formation region in both stars is 2800 kelvin. The water column density in both stars is (3 ± 2) x 1018 molecules per square centimeter, yielding an abundance relative to atomic hydrogen of n(H2O)/n(H) ≃ 10-7.
英文关键词	hydrogen; water; article; astronomy; atmosphere; infrared spectrometry; priority journal; temperature; Astronomy; Extraterrestrial Environment; Spectrophotometry, Infrared; Water; Orionis
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/244158
作者单位	Planetary Systems Branch, Code 693, NASA Goddard Space Flight Center, Greenbelt, MD 20771, United States; Consultoria Astronomica de Monterrey, Col. Bosques del Valle, Bosques de Pirineos 520-3, Garza García, N.L. 66250, Mexico; National Solar Observatory, Tucson, AZ 85726, United States
推荐引用方式 GB/T 7714	Jennings D.E.,Sada P.V.. Water in Betelgeuse and Antares[J],1998,279(5352).
APA	Jennings D.E.,&Sada P.V..(1998).Water in Betelgeuse and Antares.Science,279(5352).
MLA	Jennings D.E.,et al."Water in Betelgeuse and Antares".Science 279.5352(1998).