Sgr A* and Company - Multiwavelength observations of Sgr A* and VLA search of ``Sgr A*'s'' in LINERs

1997/06/24 by Heino Falcke, W. M. Goss, Falcke, Heino +13
Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #astro-ph

paper · pdf · doi:10.48550/arxiv.astro-ph/9706245

Talk presented at the IAU Coll. 164, A. Zensus, G. Taylor, & J. Wrobel (eds.), PASP Conf. Proc., Latex, paspconf.sty, 2 pages, preprint also available at http://www.astro.umd.edu/~hfalcke/publications.html#iauc164

arxiv created 1997/06/24 · arxiv updated 2009/12/01

Abstract

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.

Related

• The simultaneous VLA observations of Sgr A* from 90 to 0.7 cm
• VLBI Observations of the Galactic Center Source Sgr A* at 86 GHz and 215 GHz
• Sgr A* and its siblings in nearby galaxies
• Compact Radio Cores in the Galactic Center and Elsewhere
• Detection of intrinsic source structure at ~3 Schwarzschild radii with Millimeter-VLBI observations of SAGITTARIUS A*