Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...175..179k&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 175, no. 1-2, March 1987, p. 179-185.
Astronomy and Astrophysics
Astrophysics
40
Binary Stars, Radio Bursts, Spectral Energy Distribution, Spectrum Analysis, Stellar Activity, Synchrotron Radiation, Microwaves, Particle Acceleration, Plasma Heating, Relativistic Electron Beams, Stellar Radiation
Scientific paper
In this paper a detailed quantitative analysis of a well observed outburst in HR 1099 is presented. Gyrosynchrotron radiation from mildly relativistic nonthermal electrons is considered in a spatially varying magnetic field. Although the free parameters are not uniquely determined by the spectral observations, the model permits an analysis of the size and location of the radio source at different frequencies. It is shown that in the framework of such a model the low-frequency source comprises the whole binary system, while the high-frequency source has typically stellar or sub-stellar dimension. From the derived source parameters characteristic time scales for the variation of the radio flux density are estimated and discussed with respect to the observations.
Chiuderi-Drago F.
Klein Karl-Ludwig
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