Nova Aquilae 1982 - New or pre-existing dust?

Details Nova Aquilae 1982 - New or pre-existing dust? Nova Aquilae 1982 - New or pre-existing dust?

Mar 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984mnras.207..139w&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 207, March 1, 1984, p. 139-147.

Astronomy and Astrophysics

Astronomy

13

Cosmic Dust, Infrared Astronomy, Novae, Astronomical Photometry, Distance, Infrared Photometry, Interstellar Extinction, Light Curve, Spectral Energy Distribution

Scientific paper

Infrared photometry of Nova Aquilae 1982 is presented, covering the period from 37 to 261 days after discovery. Thermal emission from heated dust was present from the first observation. From energy balance arguments, the dust distance at this stage could not be reconciled with that expected from condensates within the spectroscopically observed nova ejecta. The authors discuss a model for the infrared light curves in terms of a pre-existing dust shell (mass 4.3×10-7M_sun;), possibly disrupted by the nova ejecta about 150 days after outburst. Narrow band photometry in the 10 μm window reveals that the dust is optically thin, and that both silicates and carbon-rich material may be present.

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