Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986crasb.303...47h&link_type=abstract
Academie des Sciences (Paris), Comptes Rendus, Serie II Mecanique, Physique, Chimie, Sciences de l'Univers, Sciences de la Terre
Astronomy and Astrophysics
Astronomy
Radio Emission, Radio Stars, Stellar Radiation, Astronomical Maps, Centimeter Waves, G Stars, Sky Surveys (Astronomy), Stellar Spectra
Scientific paper
A 21-cm scan of the Markarian 7 and 8 galaxies in 1980 revealed an object which seemed to be a quasar, but which proved to have the spectra of a G-star in a 1982 radio spectra survey. The object had, 30 yr ago, been observed in the red in the Polomar Sky Survey. Schmidt telescope plates from 1979-80 showed that the object is at a minimum distance of 40 pc if it is an M5 star and 250 pc if the object is a type G0 star. If the star is 100 pc away, then observed radio bursts are a million times more powerful than the type IV events of the sun, yet last only one-half hour. Further observational campaigns are proposed that could yield data for deciding whether the object is a radio galaxy, binary system, or a single star with peculiar radio signature.
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