SN1006 and the Physics of Shocks II: Development of Thermal Shocks

Physics

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Chandra Proposal Id #02500407

Scientific paper

With fine Balmer filaments marking the location of a shock shown by optical and UV spectroscopy to be moving at 2300 km/s, the NW limb of SN1006 provides a unique environment for understanding physical processes in high-velocity shocks. We propose a 100 ks ACIS-S study of the NW limb to measure the developing ionization and temperature structure 2-20" behind this shock and to characterize the reverse-shocked ejecta. Coupling this Cycle 2 observation of the thermally-dominated NW limb and our Cycle 1 pointing at the synchrotron-dominated NE limb, we will explore the effect of magnetic-field orientation on the development of fast shocks, a crucial step to understanding young SNRs. These studies are possible only with the combination of spatial and spectral resolution available with ACIS.

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