Dust Properties in the Far-Ultraviolet in Ophiuchus

dc.contributor.author	Sujatha, N. V
dc.contributor.author	Shalima, P
dc.contributor.author	Murthy, J
dc.contributor.author	Henry, R. C
dc.date.accessioned	2008-09-06T10:55:40Z
dc.date.available	2008-09-06T10:55:40Z
dc.date.issued	2005-11
dc.identifier.citation	Astrophysical Journal, Vol. 633, No. 1, Part 1, pp. 257 - 261	en
dc.identifier.issn	0004-637X
dc.identifier.uri	http://hdl.handle.net/2248/3414
dc.description.abstract	We have derived the albedo (a) and phase function asymmetry factor (g) of interstellar dust grains at 1100 Å using archival Voyager observations of diffuse radiation in Ophiuchus. We have found that the grains are highly forward-scattering, with g=0.55+/-0.25 and a=0.40+/-0.10. Even though most of the gas in this direction is in the Ophiuchus molecular cloud, the diffuse FUV radiation is almost entirely due to scattering in a relatively thin foreground cloud. This suggests that one cannot assume that the UV background is directly correlated with the total amount of gas in any direction.	en
dc.language.iso	en	en
dc.publisher	The American Astronomical Society	en
dc.relation.uri	http://arxiv.org/abs/astro-ph/0507125	en
dc.relation.uri	http://www.journals.uchicago.edu/doi/abs/10.1086/444532	en
dc.subject	ISM: Dust	en
dc.subject	Extinction	en
dc.subject	Infrared: ISM	en
dc.subject	Ultraviolet: ISM	en
dc.title	Dust Properties in the Far-Ultraviolet in Ophiuchus	en
dc.type	Article	en