Advanced search
1 file | 705.32 KB

Dust production and particle acceleration in supernova 1987A revealed with ALMA

Author
Organization
Abstract
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.
Keywords
OPTICAL-PROPERTIES, EARLY UNIVERSE, MASSIVE STARS, REVERSE SHOCK, EVOLUTION, REMNANT, EJECTA, EMISSION, SN 1987A, HUBBLE-SPACE-TELESCOPE, supernovae: individual (1987A), Magellanic Clouds, ISM: supernova remnants, galaxies: ISM

Downloads

  • Indebetouw et al. 2014.pdf
    • full text
    • |
    • open access
    • |
    • PDF
    • |
    • 705.32 KB

Citation

Please use this url to cite or link to this publication:

Chicago
Indebetouw, R, M Matsuura, E Dwek, G Zanardo, MJ Barlow, Maarten Baes, P Bouchet, et al. 2014. “Dust Production and Particle Acceleration in Supernova 1987A Revealed with ALMA.” Astrophysical Journal Letters 782 (1).
APA
Indebetouw, R., Matsuura, M., Dwek, E., Zanardo, G., Barlow, M., Baes, M., Bouchet, P., et al. (2014). Dust production and particle acceleration in supernova 1987A revealed with ALMA. ASTROPHYSICAL JOURNAL LETTERS, 782(1).
Vancouver
1.
Indebetouw R, Matsuura M, Dwek E, Zanardo G, Barlow M, Baes M, et al. Dust production and particle acceleration in supernova 1987A revealed with ALMA. ASTROPHYSICAL JOURNAL LETTERS. 2014;782(1).
MLA
Indebetouw, R, M Matsuura, E Dwek, et al. “Dust Production and Particle Acceleration in Supernova 1987A Revealed with ALMA.” ASTROPHYSICAL JOURNAL LETTERS 782.1 (2014): n. pag. Print.
@article{4385053,
  abstract     = {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 ({\textrangle}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.},
  articleno    = {L2},
  author       = {Indebetouw, R and Matsuura, M and Dwek, E and Zanardo, G and Barlow, MJ and Baes, Maarten and Bouchet, P and Burrows, DN and Chevalier, R and Clayton, GC and Fransson, C and Gaensler, B and Kirshner, R and Laki\'{c}evi\'{c}, M and Long, KS and Lundqvist, P and Mart{\'i}-Vidal, I and Marcaide, J and McCray, R and Meixner, M and Ng, C-Y and Park, S and Sonneborn, G and Staveley-Smith, L and Vlahakis, C and van Loon, J},
  issn         = {2041-8205},
  journal      = {ASTROPHYSICAL JOURNAL LETTERS},
  keyword      = {OPTICAL-PROPERTIES,EARLY UNIVERSE,MASSIVE STARS,REVERSE SHOCK,EVOLUTION,REMNANT,EJECTA,EMISSION,SN 1987A,HUBBLE-SPACE-TELESCOPE,supernovae: individual (1987A),Magellanic Clouds,ISM: supernova remnants,galaxies: ISM},
  language     = {eng},
  number       = {1},
  pages        = {6},
  title        = {Dust production and particle acceleration in supernova 1987A revealed with ALMA},
  url          = {http://dx.doi.org/10.1088/2041-8205/782/1/L2},
  volume       = {782},
  year         = {2014},
}

Altmetric
View in Altmetric
Web of Science
Times cited: