Grating spectroscopy of a bright nova in outburst

Details Grating spectroscopy of a bright nova in outburst Grating spectroscopy of a bright nova in outburst

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008cxo..prop.2555n&link_type=abstract

Chandra proposal ID #10300531

Computer Science

Scientific paper

We propose a TOO program to obtain LETG spectroscopy of a classical or recurrent nova in outburst, if it is observed to turn into a luminous supersoft X-ray source with Swift. In the rare case that a nova has unusually luminous hard X-ray flux in the initial stages, we also propose to obtain a HETG spectrum of the ejected shell. Our aims are: a) to constrain the mass, temperature and chemical composition of the white dwarf by analyzing the spectrum, b) to correlate spectral and temporal variablility during the nuclear burning phase, and c) to use the HETG to explore wind mass loss in a recurrent nova. The proposed study is important not only for nova/CV theory, but for understanding supernova Ia progenitors.

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