SN 1006: The Millennium Supernova Remnant

Details SN 1006: The Millennium Supernova Remnant SN 1006: The Millennium Supernova Remnant

May 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006sptz.prop30673w&link_type=abstract

Spitzer Proposal ID #30673

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Scientific paper

We propose MIPS 24 and 70 micron imaging of the young Type Ia supernova remnant SN 1006. At a distance of only 2.2 Kpc and well off the Galactic plane, SN 1006 provides an exceptional opportunity for detailed studies of phenomena we have characterised at low spatial resolution by looking at similar objects in the LMC (Borkowski et al. 2006). We will study the dust processing (sputtering) and destruction of ISM dust by the fast (~2900 km/s) non-radiative shock wave, spatially resolving the destruction of the smallest grains as a function of distance behing the shock using the 70/24 micron ratio. Corrolating MIPS intensities against exquisite data available at other wavelengths, we will determine shock conditions (post-shock pressures, densities and temperatures) for both the synchrotron-dominated NE and SW limbs and for the thermally-dominated NW limb. Also, because SN 1006 contains well-documented regions of both shocked and unshocked ejecta, we will perform a careful search for ejecta dust, either detecting or placing very significant limits on its presence. We also request IRS low resolution 14-38 micron spectra of two contrasting limb positions (synchrotran and thermally-dominated) to validate assumptions needed to interpret the MIPS imagery, obtain detailed spectral shapes of the dust emission from these regions, and search for potential line emission from the fast shock.

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