On the development of infrared radiation from an expanding nova shell

Details On the development of infrared radiation from an expanding nova shell On the development of infrared radiation from an expanding nova shell

Jul 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976ap%26ss..42..463c&link_type=abstract

Astrophysics and Space Science, vol. 42, July 1976, p. 463-475.

Astronomy and Astrophysics

Astrophysics

71

Gas Expansion, Infrared Radiation, Novae, Stellar Luminosity, Stellar Mass Ejection, Stellar Models, Light Curve, Mie Scattering, Optical Thickness, Stellar Temperature

Scientific paper

We discuss the precipitation and growth of grains in carbon-rich nova ejecta with a view to understanding the evolution of infrared luminosity of such objects. An initial phase of rapid grain growth is followed by an extended period of slower growth due to thinning out of the expanding gas. The period of rapid grain growth is attended by an equally rapid rise of infrared luminosity which reaches a maximum and thereafter declines more slowly after grains have grown to a significant fraction of their final radius. This behavior of luminosity and also a rapid decline of grain temperature from 2000-900 K predicted in an optically thin model is shown to be in good agreement with data for Nova Serpentis 1970.

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