Abstract
view Abstract Citations (11) References (17) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS VLA observations of AG Peg, R Aqr, and R Leo at 6 cm. Ghigo, F. D. ; Cohen, N. L. Abstract AG Pegasi's nebulosity was found to have a half-power diameter of about 1" or 1016 cm. Its 6 cm flux density increased from 6.2 mJy in 1979 January to 8.0 mJy in 1980 May. Including previous radio observations, we estimate a spectral index of α ≍ 0.7, suggestive of emission from a mass outflow. However, theoretical mass outflow models predict an angular size somewhat smaller than observed. Perhaps a nonspherically symmetric mass-loss model is required. R Aquarii was unresolved (θ < 2"), and there is no obvious correlation between its radio and optical variations. A stringent upper limit of 0.7 mJy for R Leonis is consistent with the possibility that nonsymbiotic Miras are less likely to have radio continuum emission. Publication: The Astrophysical Journal Pub Date: May 1981 DOI: 10.1086/158875 Bibcode: 1981ApJ...245..988G full text sources ADS | data products SIMBAD (3)
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