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1994A&A...286..431D - Astronomy and Astrophysics, volume 286, 431-436 (1994/6-2)
The spectrum of Sgr A* and its variability.
DUSCHL W.J. and LESCH H.
Abstract (from CDS):
We demonstrate that there is only one physical process required to explain the spectrum and the variability of the radio source at the dynamical center of our Galaxy, Sgr A*, in the frequency range from ≃1 to ≃1000 GHz, namely optically thin synchrotron radiation that is emitted from a population of relativistic electrons. We attribute the observed variability to variable energy input from an accretion disk around Sgr A* into the acceleration of the electrons.
Abstract Copyright: ∼
Journal keyword(s): acceleration of particles - accretion, accretion disks - magnetohydrodynamics (MHD) - Galaxy: center - radio continuum: galaxies
Simbad objects: 2
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