The unprecedented metamorphosis of SN2014C: from a H-stripped explosion to a strongly interacting supernova

Project: Research project

Project Details

Description

Mass loss in 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 modest investment of Chandra time over 3 years to map the unique situation of the interaction of a H-stripped SN2014C with a H-rich shell ejected by its progenitor star, as part of our extensive radio-to-gamma-ray follow-up. Our goal is to constrain the density profile and proximity of the ejected material, and hence the mass-loss history of the progenitor star. Unlike all other H-stripped SNe, the radio and X-ray emission of SN14C is still increasing at 400 days, giving us the unprecedented opportunity to constrain the epoch ejection of H-rich material in fine detail.
StatusFinished
Effective start/end date9/10/165/4/19

Funding

  • Smithsonian Astrophysical Observatory (GO6-17054A//NAS8-03060)
  • National Aeronautics and Space Administration (GO6-17054A//NAS8-03060)

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