No cold dust within the supernova remnant Cassiopeia A

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dc.creatorKrause, O.
dc.creatorBirkmann, S. M.
dc.creatorRieke, G. H.
dc.creatorLemke, D.
dc.creatorKlaas, U.
dc.creatorHines, D. C.
dc.creatorGordon, K. D.
dc.date2004-12-03
dc.date.accessioned2026-07-07T02:16:08Z
dc.date.available2026-07-07T02:16:08Z
dc.descriptionA large amount (about three solar masses) of cold (18 K) dust in the prototypical type II supernova remnant Cassiopeia A was recently reported. It was concluded that dust production in type II supernovae can explain how the large quantities (10^8 solar masses) of dust observed in the most distant quasars could have been produced within only 700 million years after the Big Bang. Foreground clouds of interstellar material, however, complicate the interpretation of the earlier submillimetre observations of Cas A. Here we report far-infrared and molecular line observations that demonstrate that most of the detected submillimetre emission originates from interstellar dust in a molecular cloud complex located in the line of sight between the Earth and Cas A, and is therefore not associated with the remnant. The argument that type II supernovae produce copious amounts of dust is not supported by the case of Cas A, which previously appeared to provide the best evidence for this possibility.
dc.description13 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/astro-ph/0412092
dc.identifierhttp://arxiv.org/abs/astro-ph/0412092
dc.identifierNature 432 (2004) 596
dc.identifierdoi:10.1038/nature03110
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/8677
dc.subjectAstrophysics
dc.titleNo cold dust within the supernova remnant Cassiopeia A
dc.typetext

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