An Extremely Close Encounter with the Disintegrating Comet 73P/SW3

Details An Extremely Close Encounter with the Disintegrating Comet 73P/SW3 An Extremely Close Encounter with the Disintegrating Comet 73P/SW3

Sep 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005cxo..prop.2080w&link_type=abstract

Chandra Proposal ID #07108248

Physics

Chandra Proposal Id #07108248

Scientific paper

We propose to use the ACIS-S instrument on Chandra to study the X-ray emission from the fragment B of comet 73P/Schwassmann-Wachmann 3. This comet is in the act of disintegration and is currently 43 tracked elements and countless additional pieces as detailed in recent Spitzer and HST observations. It will also pass closer to the Earth in May 2006 than any comet yet detected in the x-rays. We propose a total of 20 ks observation of fragment B. These data will allow us to spatially resolve the detailed structure of the interaction zone between the solar wind and the coma at a spatial resolution of ~75 km, the solar wind velocity structure in the mass-loading zone at the coma edge. The interpretation will be simplified relative to previous comets because ACE/SOHO are almost in front of the comet. We therefore will know the precise state of the Solar Wind.

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