Spitzer Observations of a WZ Sge-Type Dwarf Novae in Superoutburst

Details Spitzer Observations of a WZ Sge-Type Dwarf Novae in Superoutburst Spitzer Observations of a WZ Sge-Type Dwarf Novae in Superoutburst

Jul 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sptz.prop..225c&link_type=abstract

Spitzer Proposal ID #225

Physics

Scientific paper

On 2004 June 16, a previously unknown star in Hercules went into outburst (IAUC #8363). Preliminary optical spectra from 0.37 - 0.75um and 0.7 - 0.9 um, taken after the outburst was reported, indicate that the outbursting star is a cataclysmic variable of the WZ Sge dwarf novae type. As WZ Sge-type dwarf novae rarely outburst (timescales of decades), we are proposing to take advantage of this unique opportunity and observe the outburst with Spitzer - a chance that may never come again. The requested IRAC and MIPS observations will be used to explore the question of whether dust is formed in the ejecta of the outburst, and thus, explain an observed dip in the optical light curves of WZ Sge-type dwarf novae which has remained unexplained for nearly six decades.

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