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Shock Breakout Emission from a Type Ib/c Supernova: XRT 080109/SN 2008D

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arxiv 0806.0371 v2 pith:VLNC4EH7 submitted 2008-06-02 astro-ph

Shock Breakout Emission from a Type Ib/c Supernova: XRT 080109/SN 2008D

Roger A. Chevalier , Claes Fransson This is my paper
classification astro-ph
keywords emissionbreakoutshockattributedobservedopticalsupernovaexpectations
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The X-ray flash 080109, associated with SN 2008D, can be attributed to the shock breakout emission from a normal Type Ib/c supernova. If the observed emission is interpreted as blackbody emission, the temperature and radiated energy are close to expectations, considering that scattering dominates absorption processes so that spectrum formation occurs deep within the photosphere. The X-ray emission observed at ~10 days is attributed to inverse Compton scattering of photospheric photons with relativistic electrons produced in the interaction of the supernova with the progenitor wind. A simple model for the optical/ultraviolet emission from shock breakout is developed and applied to SN 1987A, SN 1999ex, SN 2008D, and SN 2006aj, all of which have optical emission observed at t~1 day. The emission from the first three can plausibly be attributed to shock breakout emission. The photospheric temperature is most sensitive to the radius of the progenitor star core and the radii in these cases are in line with expectations from stellar evolution. The early optical/ultraviolet observations of SN 2006aj cannot be accommodated by a shock breakout model in a straightforward way.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. A Multi-Wavelength View of the First Type Ic-BL Supernova with an Einstein Probe X-ray Shock Breakout

    astro-ph.HE 2026-06 unverdicted novelty 7.0

    First definitive X-ray shock breakout from a Type Ic-BL supernova, with radio constraints and a rate calculation implying most such supernovae produce fainter signals than observed here.

  2. EP260321a/SN 2026gzf: The Faintest Shock Breakout Associated with a Broad-Lined Supernova

    astro-ph.HE 2026-06 unverdicted novelty 7.0

    EP260321a is the faintest observed shock breakout tied to a broad-lined Type Ic supernova, interpreted as a choked weak outflow from a stripped star.

  3. EP260321a/SN 2026gzf: The Faintest Shock Breakout Associated with a Broad-Lined Supernova

    astro-ph.HE 2026-06 unverdicted novelty 4.0

    EP260321a is identified as the faintest shock breakout X-ray transient associated with broad-lined Ic supernova SN 2026gzf, interpreted as originating from a mildly relativistic weak outflow choked inside the progenitor star.