The OH 1612 MHz maser pump rates of stellar, interstellar and post-AGB OH masers

doi:10.1016/j.newast.2004.11.001

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	The OH 1612 MHz maser pump rates of stellar, interstellar and post-AGB OH masers
	He JH(何金华); He, JH (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
发表期刊	NEW ASTRONOMY
	2005-03
卷号	10 期号:4 页码:283-299
DOI	10.1016/j.newast.2004.11.001
产权排序	第1完成单位
收录类别	SCI
关键词	Masers Stars : Agb And Post Agb Stars (Stars): Circumstellar Matter Ism : Hii Regions
摘要	(Pseudo) radiative pumprate of OH 1612 MHz masers is defined for a sample of 44 OH/IR sources (infrared sources with OH 1612 MHz maser), irrespective of the real maser pumping mechanisms. The correlation between the (pseudo) maser pumprates and the evolutionary status of the maser sources reveals that the radiative pumprates of stellar OH masers are nearly fixed, which agrees with the theoretical prediction for radiatively pumped OH maser. The (pseudo) radiative pumprates of interstellar OH masers are not only very small but also varying broadly over two orders of magnitude, which is argued to be the manifestation of varying number of quiet absorbing OH cloudlets and/or various OH maser pumping mechanisms and/or competitive gain between mainline and 1612 MHz OH masers and/or anisotropy of the maser emission. The radiative pumprates of post-AGB OH masers very possibly decrease with increasing IRAS C-32 color indices and distribute in an interim region between the stellar and interstellar OH masers in the pumprate-color diagram. (C) 2005 Elsevier B.V. All rights reserved.
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	1384-1076
URL	查看原文
归档日期	2005-03-14
WOS记录号	WOS:000228183400003
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	STAR-FORMING REGIONS ; OH/IR STARS ; IRAS SOURCES ; CIRCUMSTELLAR ENVELOPE ; PLANETARY-NEBULAE ; BIPOLAR OUTFLOW ; GALACTIC-CENTER ; VX-SAGITTARII ; H2O MASERS ; PROTOPLANETARY NEBULAE
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/4418
专题	大样本恒星演化研究组
通讯作者	He, JH (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
作者单位	National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, PR China
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	He JH,He, JH . The OH 1612 MHz maser pump rates of stellar, interstellar and post-AGB OH masers[J]. NEW ASTRONOMY,2005,10(4):283-299.
APA	He JH,&He, JH .(2005).The OH 1612 MHz maser pump rates of stellar, interstellar and post-AGB OH masers.NEW ASTRONOMY,10(4),283-299.
MLA	He JH,et al."The OH 1612 MHz maser pump rates of stellar, interstellar and post-AGB OH masers".NEW ASTRONOMY 10.4(2005):283-299.

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