Resolving the Remnant in Recurrent Nova V407 Cyg

Details Resolving the Remnant in Recurrent Nova V407 Cyg Resolving the Remnant in Recurrent Nova V407 Cyg

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21921106m&link_type=abstract

American Astronomical Society, AAS Meeting #219, #211.06

Astronomy and Astrophysics

Astronomy

Scientific paper

On March 10, 2010 the symbiotic binary V407 Cyg went into a outburst. It was immediately observed at many wavelengths both because Gamma-rays were detected for the first time from a nova explosion, but also because it was had a Mira companion, suggesting a dense circumstellar medium. V407 Cyg became a radio source with both thermal and non-thermal components. The radio light curves do not fit theoretical models for nova light curves suggesting that the nova explosion in V407 Cyg does not have a simple evolution. The initial radio images with the VLBA, days to months after the outburst, showed a slightly resolved source which was probably a small part of a much bigger remnant, but the early EVLA observations did not resolve it. New EVLA observations at higher resolution, taken more than a year after outburst, show a resolved remnant about 2 asec in size with several components. We will present these images and show how they will inform the interpretation of this enigmatic object.

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