Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987mnras.224..791s&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 224, Feb. 1, 1987, p. 791-799. SERC-supported research.
Astronomy and Astrophysics
Astronomy
8
Cataclysmic Variables, Ophiuchi Clouds, Radio Sources (Astronomy), Radio Spectra, Stellar Flares, Supernova Remnants, Magnetic Field Reconnection, Synchrotron Radiation
Scientific paper
Radio observations at 327 MHz and 5 GHz of the recurrent nova RS Ophiuchi during its 1985 outbursts are presented. These observations are used as pointers to conditions in the remnant at a time about 40 days after outburst. From a comparison with theoretical expressions for synchrotron self-absorption, the Razin effect and two different cases of synchrotron emission and free-free absorption, the latter effect is favoured; synchrotron radiating electrons and absorbing material are found to be intimately mixed. A 5 GHz 'flare' is analysed in terms of a region of magnetic flux reconnection, by analogy with solar flares. Only a small region of the remnant - a few per cent of the radius in linear dimensions - is involved in this 'flare'.
Albinson J. S.
Evans Aaron
Pooley Guy G.
Spoelstra Titus A. Th.
Taylor Russ A.
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