Dust sputtering by reverse shocks in supernova remnants

Nath, Biman B.; Laskar, Tanmoy; Shull, J Michael

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3676

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DC Field	Value	Language
dc.contributor.author	Nath, Biman B.	-
dc.contributor.author	Laskar, Tanmoy	-
dc.contributor.author	Shull, J Michael	-
dc.date.accessioned	2008-12-03T11:03:42Z	-
dc.date.available	2008-12-03T11:03:42Z	-
dc.date.issued	2008-08-01	-
dc.identifier.citation	Astrophysical Journal, 2008, Vol.682, p1055	en
dc.identifier.issn	P-ISSN : 0004-637X	-
dc.identifier.issn	E-ISSN : 1538-4357	-
dc.identifier.uri	http://hdl.handle.net/2289/3676	-
dc.description	Restricted Access. An open-access version is available at arXiv.org. Articles older than 2 years are open to all at the journal site (alternative location)	en
dc.description.abstract	We consider the sputtering of dust grains, believed to be formed in cooling supernovae ejecta, under the influence of reverse shocks. In the regime of self-similar evolution of reverse shocks, we can follow the evolution of ejecta density and temperature analytically as a function of time in different parts of the ejecta, and calculate the sputtering rate of graphite and silicate grains embedded in the ejecta as they encounter the reverse shock. Through analytic (one-dimensional) calculations, we find that a fraction of the dust mass (1%-20% for silicates and graphites) can be sputtered by reverse shocks, the fraction varying with the grain size distribution and the steepness of the density profile of the ejecta mass. It is expected that many more grains will be sputtered in the region between the forward and reverse shocks, so that our analytical results provide a lower limit to the fraction of dust mass destroyed.	en
dc.language.iso	en	en
dc.publisher	University of Chicago Press for the American Astronomical Society	en
dc.relation.uri	http://adsabs.harvard.edu/abs/2008ApJ...682.1055N	en
dc.relation.uri	http://arxiv.org/abs/0804.3472	en
dc.relation.uri	http://dx.doi.org/10.1086/589224	en
dc.rights	2008: The American Astronomical Society	en
dc.subject	ISM: Dust	en
dc.subject	Extinction	en
dc.subject	Galaxies: High-Redshift	en
dc.subject	ISM: Supernova Remnants	en
dc.title	Dust sputtering by reverse shocks in supernova remnants	en
dc.type	Article	en
Appears in Collections:	Research Papers (A&A)

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