SIMBAD references

2007ApJ...659..389F - Astrophys. J., 659, 389-406 (2007/April-2)

Probing the density in the Galactic center region: wind-blown bubbles and high-energy proton constraints.

FRYER C.L., LIU S., ROCKEFELLER G., HUNGERFORD A. and BELANGER G.

Abstract (from CDS):

Recent observations of the Galactic center in high-energy γ-rays (above 0.1 TeV) have opened up new ways to study this region, from understanding the emission source of these high-energy photons to constraining the environment in which they are formed. We present a revised theoretical density model of the inner 5 pc surrounding Sgr A* based on the fact that the underlying structure of this region is dominated by the winds from the Wolf-Rayet stars orbiting Sgr A*. The high-energy γ-ray emission is an ideal probe and application of this density structure. We assume a proton scattering model for the production of these γ-rays and then determine, first, whether such a model is consistent with the observations and, second, whether we can use these observations to further constrain the density distribution in the Galactic center.

Abstract Copyright: ∼

Journal keyword(s): ISM: Cosmic Rays - Galaxy: Center - Gamma Rays: Theory - Radiation Mechanisms: Nonthermal - Stars: Winds, Outflows - Turbulence

Simbad objects: 6

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