Nova Aquilae 1982.
Snijders, M. A. J.; Seaton, M. J.; Blades, J. C.; Roche, P. F.; Morton, D. C.; Batt, T. J.; Spoelstra, T. A. T.
United Kingdom, Canada
Abstract
Observations of Nova Aquilae obtained from the IUE, the Anglo-Australian Telescope, and the Westerbork Synthesis Radio Telescope are discussed. Light curves for B, V, and continuum fluxes at 2800 and 1300 A are presented. Velocities obtained from line profiles indicate the presence of three main gaseous components: a high velocity gas (HVG) component found only in absorption lines on D = 29 and 35, and a medium-velocity gas (MVG) and low-velocity gas component found in emission lines and, for the MVG, in the Na I D-line absorption. A model for thermal emission from the HVG is discussed. It is suggested that ionization in the MVG was maintained by photoionization. Properties of the dust grains are studied using data from absorption in the optical and UV and from emission in the IR.