Herschel detects a massive dust reservoir in Supernova 1987A

Matsuura, M. ORCID: https://orcid.org/0000-0002-5529-5593, Dwek, E., Meixner, M., Otsuka, M., Babler, B., Barlow, M. J., Roman-Duval, J., Engelbracht, C., Sandstrom, K., Lakićević, M., Van Loon, J. Th., Sonneborn, G., Clayton, G. C., Long, K. S., Lundqvist, P., Nozawa, T., Gordon, K. D., Hony, S., Panuzzo, P., Okumura, K., Misselt, K. A., Montiel, E. and Sauvage, M. 2011. Herschel detects a massive dust reservoir in Supernova 1987A. Science 333 (6047) , pp. 1258-1261. 10.1126/science.1205983

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Abstract

We report far-infrared and submillimeter observations of supernova 1987A, the star whose explosion was observed on 23 February 1987 in the Large Magellanic Cloud, a galaxy located 160,000 light years away. The observations reveal the presence of a population of cold dust grains radiating with a temperature of about 17 to 23 kelvin at a rate of about 220 times the luminosity of the Sun. The intensity and spectral energy distribution of the emission suggest a dust mass of about 0.4 to 0.7 times the mass of the Sun. The radiation must originate from the supernova ejecta and requires the efficient precipitation of all refractory material into dust. Our observations imply that supernovae can produce the large dust masses detected in young galaxies at very high redshifts.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Publisher:	American Association for the Advancement of Science
ISSN:	1095-9203
Date of Acceptance:	21 June 2011
Last Modified:	14 May 2024 15:45
URI:	https://orca.cardiff.ac.uk/id/eprint/168107

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