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Cosmic Detectives: Investigating the Catastrophic Deaths of Stars

Anna Ho
July 06, 2018
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Cosmic Detectives: Investigating the Catastrophic Deaths of Stars

Anna Ho

July 06, 2018
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  1. The fate of a star depends on its mass Shed

    outer layers Planetary Nebula White Dwarf Low mass
  2. The fate of a star depends on its mass Shed

    outer layers Planetary Nebula White Dwarf Core-Collapse Supernova Low mass High mass
  3. The fate of a star depends on its mass Shed

    outer layers Planetary Nebula White Dwarf Core-Collapse Supernova Low mass Neutron Star Black Hole Nebula High mass
  4. Singer et al. (2015) PTF Image, before PTF Image, after

    Finding bursts with the Palomar Transient Factory (PTF)
  5. Open Questions •what if the jet gets choked on its

    way out? •what if the jet is pointed away from us? •what about jets with different compositions? •how often does a collapsing star form a jet? To answer these questions, we need to find afterglows without a gamma-ray burst!
  6. ZTF Era: Discover afterglows agnostic to GRBs ALERT ZTF Image,

    before ZTF Image, before ZTF Image, after Step 1: Recognition Step 2: Confirmation
  7. The Very Large Array (VLA), New Mexico Video credit: The

    National Radio Astronomy Observatory
  8. Image Credit: NASA Altitude: 350 km / 250 miles (Low

    Earth Orbit) MAXI on the International Space Station (ISS)