The simultaneous spectrum of Sgr A* from 20cm to 1mm and the nature of the mm-excess

Details The simultaneous spectrum of Sgr A* from 20cm to 1mm and the nature of the mm-excess The simultaneous spectrum of Sgr A* from 20cm to 1mm and the nature of the mm-excess

1998-01-12

arxiv.org/abs/astro-ph/9801085v1

Astronomy and Astrophysics

Astrophysics

Apj, in press, (AAS, emulateapj) LaTex, 6 pages, preprint also available at http://www.mpifr-bonn.mpg.de/mpivlb/falcke/publi

Scientific paper

10.1086/305687

We report results from a multiwavelength campaign to measure the simultaneous spectrum of the super-massive black hole candidate Sgr A* in the Galactic Center from cm to mm-wavelengths using the VLA, BIMA, the Nobeyama 45m, and the IRAM 30m telescopes. The observations confirm that the previously detected mm-excess is an intrinsic feature of the spectrum of Sgr A*. The excess can be interpreted as due to the presence of an ultra-compact component of relativistic plasma with a size of a few Schwarzschild radii near the black hole. If so, Sgr A* might offer the unique possibility to image the putative black hole against the background of this component with future mm-VLBI experiments.

Affiliated with

Also associated with

No associations

Rating

The simultaneous spectrum of Sgr A* from 20cm to 1mm and the nature of the mm-excess does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The simultaneous spectrum of Sgr A* from 20cm to 1mm and the nature of the mm-excess, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The simultaneous spectrum of Sgr A* from 20cm to 1mm and the nature of the mm-excess will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-590761