Dust around type Ia supernovae

	Dust around type Ia supernovae
	Wang, LF
刊名	ASTROPHYSICAL JOURNAL
	2005-12-10
卷号	635 期号:1 页码:L33-L36
关键词	distance scale dust, extinction supernovae : general
ISSN号	0004-637X
英文摘要	An explanation is given of the low value of R-lambda equivalent to A(lambda)/E(B-V) the ratio of absolute to selective extinction deduced from Type Ia supernova observations. The idea involves scattering by dust clouds located in the circumstellar environment or at the highest velocity shells of the supernova ejecta. The scattered light tends to reduce the effective in the optical but has an opposite effect in the ultraviolet. The presence of circumstellar dust can be tested by R-lambda ultraviolet to near-infrared observations and by multiepoch spectropolarimetry of Type Ia supernovae.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	HUBBLE-SPACE-TELESCOPE ; INFRARED PHOTOMETRY ; CIRCUMSTELLAR MEDIUM ; PLANETARY-NEBULAE ; LIGHT ECHOES ; SN 1994D ; EXTINCTION ; SN-1987A ; 2000CX ; EJECTA
收录类别	SCI
语种	英语
WOS记录号	WOS:000233929700009
公开日期	2012-03-07
内容类型	期刊论文
源URL	[http://159.226.72.40/handle/332002/4086]
专题	紫金山天文台_南极天文中心
作者单位	1.Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94712 USA 2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Wang, LF. Dust around type Ia supernovae[J]. ASTROPHYSICAL JOURNAL,2005,635(1):L33-L36.
APA	Wang, LF.(2005).Dust around type Ia supernovae.ASTROPHYSICAL JOURNAL,635(1),L33-L36.
MLA	Wang, LF."Dust around type Ia supernovae".ASTROPHYSICAL JOURNAL 635.1(2005):L33-L36.