Other
Scientific paper
Dec 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aas...181.8304h&link_type=abstract
American Astronomical Society, 181st AAS Meeting, #83.04; Bulletin of the American Astronomical Society, Vol. 24, p.1257
Other
2
Scientific paper
Nova Cygni 1992 was first detected as an optically, thick, thermal radio source on March 30, 1992. The instrument used was the VLA operating at frequencies of 4.9, 8.4, 14.9, and 22 GHz. From that time, until the day this abstract was written on October 23, 1992, its radio spectrum has been observed at least once a month with the VLA, and at different times and frequencies by other radio telescopes. The latest VLA observation, on October 2, 1992, showed an optically thick radio spectrum with some sign of decreasing optical depth for the highest frequencies. The optically thick model of an expanding disk with an effective temperature of 10,000 K, which fits the initial radio light curve data, predicts a geometric mean image diameter of roughly 0.3 arcseconds in October. The first VLA imaging with the 36 km array, and 0.03 and 0.015 arcsecond resolution, was scheduled for October 30, and imaging at subsequent four to six week intervals was planned. This paper will discuss the results of the VLA imaging of the nova together with modeling and interpretation of all available radio data from the VLA and other radio telescopes.
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