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| Query : 1994A&A...286..431D |
1994A&A...286..431D - Astronomy and Astrophysics, volume 286431-436 (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
| Number of rows : 2 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2026 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | NAME Sgr A Region | reg | 17 45 12 | -28 48.3 | ~ | 955 | 0 | |||||
| 2 | NAME Sgr A* | X | 17 45 40.03599 | -29 00 28.1699 | ~ | 4970 | 3 |
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