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SN 1987A at Radio Wavelengths

  • L. Staveley-Smith
  • R.N. Manchester
  • B.M. Gaensler
  • M.J. Kesteven
  • A.K. Tzioumis
  • N.S. Bizunok
  • V.C. Wheaton
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 99)

Summary

SN1987A has an intrinsic radio luminosity some four orders of magnitude less than SN1993J at maximum, largely a reflection of the tenuous wind from the progenitor of SN1987A before explosion. Both remnants have an edge-brightened, ring-like morphology though, in the case of SN1987A, the expansion rate is currently only around 3500 km s−1. The flux density of the remnant of SN1987A continues to rise at all measured radio frequencies. Its spectral index is gradually flattening, indicating its transition into the supernova remnant phase. A campaign to increase the resolution of radio imaging by observing at higher frequencies is underway with the Australia Telescope Compact Array (ATCA).

Keywords

Spectral Index Shock Front Radio Emission Radio Imaging Radio Luminosity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • L. Staveley-Smith
    • 1
  • R.N. Manchester
    • 1
  • B.M. Gaensler
    • 2
  • M.J. Kesteven
    • 1
  • A.K. Tzioumis
    • 1
  • N.S. Bizunok
    • 3
  • V.C. Wheaton
    • 4
  1. 1.Australia Telescope National FacilityCSIROEppingAustralia
  2. 2.Harvard-Smithsonian Center for AstrophysicsCambridgeUSA
  3. 3.Boston UniversityBostonUSA
  4. 4.School of PhysicsUniversity of SydneyAustralia

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