Continued Chandra-NuSTAR Monitoring of the Unprecedented Metamorphosis of SN2014C at t>1500 days since Explosion

Project: Research project

Project Details

Description

Mass loss in evolved massive stars is one of the least understood yet fundamental aspects of stellar evolution. HOW and WHEN do massive stars lose their H-envelopes? This central question motivates this proposal. We request a continuation of our successful Chandra-NuSTAR campaign that led to the first detection of a H-poor extragalactic SN in the hard X-rays. We request Chandra-NuSTAR observations to map the unique situation of the interaction of the H-stripped SN2014C with a H-rich shell ejected by its progenitor star, as part of our approved gamma-ray to radio follow up. Our goal is to complete the mapping of the density profile of the H-rich material at R>7d17 cm to determine its location and total mass, and hence the mass-loss history of the progenitor in the years before stellar death.
StatusActive
Effective start/end date5/25/195/24/21

Funding

  • Smithsonian Astrophysical Observatory (G09-20060A//NAS8-03060)
  • National Aeronautics and Space Administration (G09-20060A//NAS8-03060)

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