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The Radio Spectrum of SGR A

  • T. Beckert
  • W. J. Duschl
  • P. G. Mezger
  • R. Zylka
Conference paper
Part of the International Astronomical Union / Union Astronomique Internationale book series (IAUS, volume 171)

Abstract

Sgr A*, the enigmatic radio source located at the dynamical center of the Galaxy, is firmly detected in the frequency range of ~ 1 — few 102 GHz. For ~ 0.5 – 1 GHz and in the MIR range only significant upper limits of the flux density are known. Between ~ 1.5 and 600 GHz the time averaged flux density S υ is proportional to υ1/3 (υ: frequency). For frequencies higher than ~ 600 GHz as well as for those lower than ~ 1.5 GHz, S υ drops sharply.

References

  1. Beckert T., Duschl W.J., 1995, Synchrotron radiation from quasi-monoenergetic electron distributions, to be submittedGoogle Scholar
  2. Beckert T., Duschl W.J., Mezger P.G., Zylka R., 1995, A&A, in pressGoogle Scholar
  3. Duschl W.J., Lesch H., 1994, A&A 286, 431ADSGoogle Scholar
  4. Zylka R., Mezger P.G., Ward-Thompson D., Duschl W.J., Lesch H., 1995, A&A 297, 83ADSGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 1996

Authors and Affiliations

  • T. Beckert
    • 1
  • W. J. Duschl
    • 1
    • 2
  • P. G. Mezger
    • 2
  • R. Zylka
    • 2
  1. 1.Max-Planck-Institut für RadioastronomieBonnGermany
  2. 2.Institut für Theoretische AstrophysikHeidelbergGermany

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