Continued NuSTAR Monitoring of the Unprecedented Metamorphosis of SN2014 at T>1000 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 NuSTAR campaign that led to the
first detection of a H-poor extragalactic SN in the hard X-rays. We request
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.
StatusFinished
Effective start/end date8/7/189/27/20

Funding

  • California Institute of Technology, Jet Propulsion Laboratory (RSA No. 1609661)
  • National Aeronautics and Space Administration (RSA No. 1609661)

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