Presentation Title

Interpreting archival Chandra X-ray data to know more about circumstellar matter around supernova progenitors

Start Date

November 2016

End Date

November 2016

Location

Surge 172

Type of Presentation

Oral Talk

Abstract

The explosion of a star into a supernova generates a shockwave which spreads out through the Circumstellar Medium (CSM), composed of matter previously emitted by the star as stellar wind. The interaction of the shock heats the particles in the CSM; in turn, these particles cool by bremsstrahlung radiation and emit X-rays in the process. We have analyzed archival data from the Chandra X-ray Telescope of 45 supernovae observations, and determine the X-ray luminosity from the shock interaction for each SN. Based on the geometry of and reasonable assumptions about the CSM and shock front, we are able to determine the CSM density from our results. These results give us a more complete picture of the environment around the supernova progenitor and its historical mass loss rate.

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Nov 12th, 11:30 AM Nov 12th, 11:45 AM

Interpreting archival Chandra X-ray data to know more about circumstellar matter around supernova progenitors

Surge 172

The explosion of a star into a supernova generates a shockwave which spreads out through the Circumstellar Medium (CSM), composed of matter previously emitted by the star as stellar wind. The interaction of the shock heats the particles in the CSM; in turn, these particles cool by bremsstrahlung radiation and emit X-rays in the process. We have analyzed archival data from the Chandra X-ray Telescope of 45 supernovae observations, and determine the X-ray luminosity from the shock interaction for each SN. Based on the geometry of and reasonable assumptions about the CSM and shock front, we are able to determine the CSM density from our results. These results give us a more complete picture of the environment around the supernova progenitor and its historical mass loss rate.