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The Radio Spectrum of SGR A∗

Published online by Cambridge University Press:  25 May 2016

T. Beckert ,
W.J. Duschl ,
P.G. Mezger  and
R. Zylka
T. Beckert
Affiliation:
Institut für Theoretische Astrophysik, Heidelberg, FRG
W.J. Duschl
Affiliation:
Institut für Theoretische Astrophysik, Heidelberg, FRG Max-Planck-Institut für Radioastronomie, Bonn, FRG
P.G. Mezger
Affiliation:
Max-Planck-Institut für Radioastronomie, Bonn, FRG
R. Zylka
Affiliation:
Max-Planck-Institut für Radioastronomie, Bonn, FRG

Extract

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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 Sv is proportional to v1/3 (v: frequency). For frequencies higher than ∼ 600 GHz as well as for those lower than ∼ 1.5 GHz, Sv drops sharply.

Type
Poster Papers
Information
Symposium - International Astronomical Union , Volume 171: New Light on Galaxy Evolution , 1996 , pp. 342
Copyright
Copyright © Kluwer 1996 

References

Beckert, T., Duschl, W.J., 1995, Synchrotron radiation from quasi-monoenergetic electron distributions, to be submitted Google Scholar
Beckert, T., Duschl, W.J., Merger, P.G., Zylka, R., 1995, A&A, in press Google Scholar
Duschl, W.J., Lesch, H., 1994, A&A 286, 431 Google Scholar
Zylka, R., Mezger, P.G., Ward-Thompson, D., Duschl, W.J., Lesch, H., 1995, A&A 297, 83 Google Scholar