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Sgr A* and Company—Multiwavelength Observations of Sgr A* and VLA Search for “Sgr A*’s” in LINERs

Published online by Cambridge University Press:  12 April 2016

H. Falcke ,
W. M. Goss ,
L. C. Ho ,
H. Matsuo ,
P. Teuben ,
A. S. Wilson ,
J.-H. Zhao  and
R. Zylka
H. Falcke
Affiliation:
Dept. Astronomy, University of Maryland, College Park, MD 20742-2421, USA Max-Planck-Institut für Radioastronomie, Bonn, Germany.
W. M. Goss
Affiliation:
National Radio Astronomy Observatory, Socorro, NM, U.S.A.
L. C. Ho
Affiliation:
Harvard/CfA, Cambridge, MA, U.S.A.
H. Matsuo
Affiliation:
Nobeyama Radio Observatory, Japan
P. Teuben
Affiliation:
Dept. Astronomy, University of Maryland, College Park, MD 20742-2421, USA
A. S. Wilson
Affiliation:
Dept. Astronomy, University of Maryland, College Park, MD 20742-2421, USA
J.-H. Zhao
Affiliation:
Harvard/CfA, Cambridge, MA, U.S.A.
R. Zylka
Affiliation:
Max-Planck-Institut für Radioastronomie, Bonn, Germany.

Abstract

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We report first results from a multiwavelength campaign to measure the simultaneous spectrum of Sgr A* from cm to mm wavelengths. The observations confirm that the previously detected submm-excess is not due to variability; the presence of an ultracompact component with a size of a few Schwarzschild radii is inferred. In a VLA survey of LINER galaxies, we found Sgr A*-like nuclei in one quarter of the galaxies searched, suggesting a link between those low-power AGN and the Galactic Center.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 164: Radio Emission from Galactic and Extragalactic Compact Sources , 1998 , pp. 323 - 324
Copyright
Copyright © Astronomical Society of the Pacific 1998

References

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