PTF10fqs: A Luminous Red Nova in the Spiral Messier 99

Details PTF10fqs: A Luminous Red Nova in the Spiral Messier 99 PTF10fqs: A Luminous Red Nova in the Spiral Messier 99

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010sptz.prop70110k&link_type=abstract

Spitzer Proposal ID #70110

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Scientific paper

On April 16, 2010 we discovered a rare transient (PTF10fqs) in the luminosity gap between novae and supernovae with the Palomar Transient Factory. PTF10fqs is located on a spiral arm in M99, a member of the Virgo Cluster. On April 18, we obtained a Gemini spectrum and on April 20, multi-color photometry with the Palomar 60-inch. The explosion signature resembles that of a class of 'Luminous Red Novae'; only two other such transients are known. A plethora of models have been proposed: stellar merger, e-capture on AGB star, weird nova and weird supernova. Here, we propose MIR photometry to determine the total energetics of the event and as a unique tracer of the circumstellar dust. Together with our ongoing multi-wavelength (optical, NIR, radio, UV and X-ray) follow-up of PTF10fqs, we hope to make progress in deciphering the nature of this class.

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