Mass Loss from Jet Symbiotics and Their Role as Type Ia Supernova Precursors

Details Mass Loss from Jet Symbiotics and Their Role as Type Ia Supernova Precursors Mass Loss from Jet Symbiotics and Their Role as Type Ia Supernova Precursors

Mar 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009sptz.prop50582m&link_type=abstract

Spitzer Proposal ID #50582

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Scientific paper

Using Spitzer data, we have discovered a large (~5 arcmin) bright unipolar lobe ejected from the classical symbiotic binary system, BI Cru, the only such IR lobe known associated with any symbiotic. BI Cru is a member of the recently-discovered subset of symbiotics which have jets. It is also the only symbiotic imaged by Spitzer which is a 'jet symbiotic'. It is thus important to use Spitzer to study other jet symbiotics. We will use Spitzer IR imagery to identify other extended warm and cool ejecta around the remaining known jet symbiotics. Our goal is to use Spitzer imagery of the environs of these stellar binaries to: a.) search for and delineate the stellar ejecta produced, via collimated outflows (jets), and outbursts, around these objects, b.) determine whether such large ejecta as with BI Cru are correlated with the presence of jets, c.) use these data to estimate total ejecta masses, and d.) use these results to constrain the mass accretion efficiency and what fraction of WDs actually reaches the Chandrasekhar mass and detonate as Type Ia supernovae. An absence of detected ejecta would constrain the past mass loss. This study could have profound implications for the energy input into galaxies and to chemical enrichment of elements like Fe, that originate in SN Ia explosions.

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