Abstract
A model for grain formation in an expanding Nova shell is presented. It is shown that individual grains complete the growth within a very short time interval. In consequence the infrared brightening accompanied with visual darkening observed in several Novae is interpreted in terms of extension of dusty region in the ejected gas shell. Developments of infrared luminosity and visual magnitude are computed on the basis of a model, and compared with the observations of Nova Vul 1976, Nova Ser 1970, and Nova Aql 1975. The constancy and uniformity of grain temperatures for a long period after the infrared maximum observed in Nova Vul 1976 are also discussed.
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Yamamoto, T., Seki, J. A model for the infrared brightening of a Nova shell. Astrophys Space Sci 64, 153–164 (1979). https://doi.org/10.1007/BF00640037
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DOI: https://doi.org/10.1007/BF00640037