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DUST PRODUCTION AND...
DUST PRODUCTION AND PARTICLE ACCELERATION IN SUPERNOVA 1987A REVEALED WITH ALMA
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- Indebetouw, R. (author)
- National Radio Astronomy Observatory,University of Virginia
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- Matsuura, M. (author)
- University College London (UCL)
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- Dwek, E. (author)
- NASA Goddard Space Flight Center
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- Zanardo, G. (author)
- University of Western Australia
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- Barlow, M. J. (author)
- University College London (UCL)
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- Baes, Maarten (author)
- Universiteit Gent,Ghent university
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- Bouchet, P. (author)
- Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA),The French Alternative Energies and Atomic Energy Commission (CEA)
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- Burrows, D. N. (author)
- Pennsylvania State University
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- Chevalier, R. (author)
- University of Virginia
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- Clayton, G. C. (author)
- Louisiana State University
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- Fransson, C. (author)
- Stockholms universitet,Stockholm University
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- Gaensler, B. (author)
- The University of Sydney,ARC Centre of Excellence for All-sky Astrophysics (CAASTRO)
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- Kirshner, R. (author)
- Harvard-Smithsonian Center for Astrophysics
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- Lakicevic, M. (author)
- Keele University
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- Long, K. S. (author)
- Space Telescope Science Institute (STScI)
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- Lundqvist, P. (author)
- Stockholms universitet,Stockholm University
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- Marti-Vidal, Ivan, 1980 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Marcaide, J. M. (author)
- Universitat de Valencia
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- McCray, R. (author)
- University of Colorado at Boulder
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- Meixner, M. (author)
- Johns Hopkins University,Space Telescope Science Institute (STScI)
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- Ng, C. Y. (author)
- The University of Hong Kong
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- Park, S. (author)
- University of Texas at Arlington
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- Sonneborn, G. (author)
- Space Telescope Science Institute (STScI)
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- Staveley-Smith, L. (author)
- University of Western Australia,ARC Centre of Excellence for All-sky Astrophysics (CAASTRO)
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- Vlahakis, C. (author)
- Atacama Large Millimeter-submillimeter Array (ALMA)
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- van Loon, J. T. (author)
- Keele University
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(creator_code:org_t)
- 2014-01-17
- 2014
- English.
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In: Astrophysical Journal Letters. - : American Astronomical Society. - 2041-8213 .- 2041-8205. ; 782:1, s. 6-
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Abstract
Subject headings
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- Supernova (SN) explosions are crucial engines driving the evolution of galaxies by shock heating gas, increasing the metallicity, creating dust, and accelerating energetic particles. In 2012 we used the Atacama Large Millimeter/Submillimeter Array to observe SN 1987A, one of the best-observed supernovae since the invention of the telescope. We present spatially resolved images at 450 mu m, 870 mu m, 1.4 mm, and 2.8 mm, an important transition wavelength range. Longer wavelength emission is dominated by synchrotron radiation from shock-accelerated particles, shorter wavelengths by emission from the largest mass of dust measured in a supernova remnant (>0.2 M-circle dot). For the first time we show unambiguously that this dust has formed in the inner ejecta (the cold remnants of the exploded star's core). The dust emission is concentrated at the center of the remnant, so the dust has not yet been affected by the shocks. If a significant fraction survives, and if SN 1987A is typical, supernovae are important cosmological dust producers.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- HUBBLE-SPACE-TELESCOPE
- OPTICAL-PROPERTIES
- EJECTA
- ISM: supernova remnants
- EMISSION
- individual (1987A)
- SN 1987A
- galaxies: ISM
- EARLY UNIVERSE
- REVERSE SHOCK
- REMNANT
- MASSIVE STARS
- EVOLUTION
- supernovae
- Magellanic Clouds
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Indebetouw, R.
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Matsuura, M.
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Dwek, E.
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Zanardo, G.
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Barlow, M. J.
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Baes, Maarten
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show more...
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Bouchet, P.
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Burrows, D. N.
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Chevalier, R.
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Clayton, G. C.
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Fransson, C.
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Gaensler, B.
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Kirshner, R.
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Lakicevic, M.
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Long, K. S.
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Lundqvist, P.
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Marti-Vidal, Iva ...
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Marcaide, J. M.
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McCray, R.
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Meixner, M.
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Ng, C. Y.
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Park, S.
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Sonneborn, G.
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Staveley-Smith, ...
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Vlahakis, C.
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van Loon, J. T.
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- NATURAL SCIENCES
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NATURAL SCIENCES
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Chalmers University of Technology