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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 607301.0, MPI für Astronomie / Publikationen_mpia
Herschel detects a massive dust reservoir in supernova 1987A
Authors:Matsuura, M.; Dwek, E.; Meixner, M.; Otsuka, M.; Babler, B.; Barlow, M. J.; Roman-Duval, J.; Engelbracht, C.; Sandstrom, K.; Lakićević, M.; van Loon, J. T.; 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.; Sauvage, M.
Date of Publication (YYYY-MM-DD):2011
Journal Abbrev.:Science
Issue / Number:6047
Start Page:1258
End Page:1261
Audience:Not Specified
Abstract / Description: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.
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
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