TeV Gamma Rays From the Galactic Center Direct and Indirect Links to the Massive Black Hole in Sgr A

Details TeV Gamma Rays From the Galactic Center Direct and Indirect Links to the Massive Black Hole in Sgr A TeV Gamma Rays From the Galactic Center Direct and Indirect Links to the Massive Black Hole in Sgr A

Nov 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005ap%26ss.300..255a&link_type=abstract

Astrophysics and Space Science, Volume 300, Issue 1-3, pp. 255-265

Astronomy and Astrophysics

Astrophysics

26

Galactic Center, Black Holes, Gamma Rays, X-Rays

Scientific paper

The recent detection of TeV gamma-radiation from the direction of the Galactic Center within several arc-minutes around Sgr A* is the first model-independent evidence of existence of high-energy particle accelerator(s) in the central 10 pc region of our Galaxy. This is an extraordinary site that harbours many remarkable objects with the compact radio source Sgr A* a hypothetical super-massive black hole (SMBH) in the dynamical center of the Galaxy. Here we explore the possible direct and indirect links of the reported TeV emission to the SMBH. We show that at least three γ-ray production scenarios that take place close to the event horizon of the SMBH can explain the reported TeV fluxes. An alternative (or additional) channel of TeV radiation is related to the run-away protons accelerated in Sgr A*. Quasi-continuous injection of relativistic protons into the surrounding dense gas environment initiates detectable high-energy gamma-ray emission. The absolute flux and the energy spectrum of this radiation component strongly depend on the history of particle injection and the character of diffusion of protons during the last 105 yr. For a reasonable combination of a few model parameters, one can explain the detected gamma-ray flux solely by this diffuse component.

Affiliated with

Also associated with

No associations

Rating

TeV Gamma Rays From the Galactic Center Direct and Indirect Links to the Massive Black Hole in Sgr A 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 TeV Gamma Rays From the Galactic Center Direct and Indirect Links to the Massive Black Hole in Sgr A, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and TeV Gamma Rays From the Galactic Center Direct and Indirect Links to the Massive Black Hole in Sgr A will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1835151