Radio Continuum Emission from Classical Novae: eNova Project Early Results (and Surprises!)

Details Radio Continuum Emission from Classical Novae: eNova Project Early Results (and Surprises!) Radio Continuum Emission from Classical Novae: eNova Project Early Results (and Surprises!)

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21730407k&link_type=abstract

American Astronomical Society, AAS Meeting #217, #304.07; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

We present initial results from the eNova Project, an EVLA campaign to observe nearby classical novae at early times with high-bandwidth, multi-frequency coverage. Because radio emission is not subject to extinction by dust, and because it remains optically thick at lower densities than optical emission, it is an ideal probe of the physical parameters of nova explosions. Simple models for radio light curves have historically been based on a picture in which thermal, ionized gas produces homogeneous, expanding ejecta. These models provided reasonable descriptions of previous radio data. However, this simplistic picture is incompatible with our EVLA observations of two novae --- V407 Cyg and V1723 Aql. We will discuss the discrepancies between the simple models and our new EVLA data, which promise to provide new information about the explosion, the ejecta, and the circum-binary environment.

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