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Herschel detects a massive dust reservoir in supernova 1987a
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | vanLoon, J. Th Roman-Duval, J. Clayton, G. C. Misselt, K. A. Matsuura, M. Montiel, E. Long, K. S. Meixner, M. Sonneborn, G. Sauvage, M. Gordon, K. D. Barlow, M. J. Dwek, E. Babler, B. Nozawa, T. Lundqvist, P. Engelbracht, C. Hony, S. Otsuka, M. Lakicevic, M. Okumura, K. |
| Copyright Year | 2011 |
| Description | We report far-infrared and submillimeter observations of Supernova 1987A, the star that exploded on February 23, 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 approx.17-23 K at a rate of about 220 stellar luminosity. The intensity and spectral energy distribution of the emission suggests a dust mass of approx.0.4-0.7 stellar mass. The radiation must originate from the SN 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 red shifts. |
| File Size | 677449 |
| Page Count | 13 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20110015451 |
| Archival Resource Key | ark:/13960/t7mq01c0w |
| Language | English |
| Publisher Date | 2011-01-01 |
| Access Restriction | Open |
| Subject Keyword | Astrophysics Dust Ejecta Sandstrom K. Galaxies Stellar Mass Submillimeter Waves Reservoirs Supernova 1987a Solar Radiation Stellar Luminosity Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
