Statistics – Computation
Scientific paper
May 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...328..232l&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 328, May 1, 1988, p. 232-242.
Statistics
Computation
52
Algol, Eclipsing Binary Stars, Radio Sources (Astronomy), Stellar Systems, Synchrotron Radiation, Very Long Base Interferometry, Computational Astrophysics, Electron Energy, Interstellar Magnetic Fields, Relativistic Electron Beams, Stellar Coronas
Scientific paper
Results of multiepoch VLBI observations of the stellar system Algol are presented, including dual-polarization and dual-frequency measurements at 2.3 and 8.4 GHz. The brightness temperature of the radio source is generally between 3 x 10 to the 8th K and 5 x 10 to the 9th K and is consistent with gyrosynchrotron emission from energetic electrons with mean energy less than 1 MeV in an active coronal region. Two exceptional events were observed: a high-brightness, broad-band outburst occurring simultaneously at 2.3 and 8.4 GHz, and a short-duration, highly polarized and high-brightness temperature outburst at 1.66 GHz. A simple physical model which includes all three types of emission is suggested.
Lestrade Jean-Francois
Mutel Robert L.
Phillips Robert B.
Preston A. R. A. R.
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