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Shock Cooling Emission from Extended Material Revisited

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arxiv 2007.08543 v2 pith:QKP3OIHB submitted 2020-07-16 astro-ph.HE

Shock Cooling Emission from Extended Material Revisited

Anthony L. Piro , Annastasia Haynie , Yuhan Yao This is my paper
classification astro-ph.HE
keywords materialshockemissionextendedmodelcoolingearlyevents
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Following shock breakout, the emission from an astrophysical explosion is dominated by the radiation of shock heated material as it expands and cools, known as shock cooling emission (SCE). The luminosity of SCE is proportional to the initial radius of the emitting material, which makes its measurement useful for investigating the progenitors of these explosions. Recent observations have shown some transient events have especially prominent SCE, indicating a large radius that is potentially due to low mass extended material. Motivated by this, we present an updated analytic model for SCE that can be utilized to fit these observations and learn more about the origin of these events. This model is compared with numerical simulations to assess its validity and limitations. We also discuss SNe 2016gkg and 2019dge, two transients with large early luminosity peaks that have previously been attributed to SCE of extended material. We show that their early power-law evolution and photometry are well matched by our model, strengthening support for this interpretation.

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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. X-rays breaking out of pre-explosion ejecta mark a supernova's first light

    astro-ph.HE 2026-06 conditional novelty 7.0

    EP260321a is a thermal soft X-ray shock breakout from a ~300 R_⊙ CSM shell around a stripped-envelope progenitor, followed by SN Ic-BL 2026gzf.

  2. X-rays breaking out of pre-explosion ejecta mark a supernova's first light

    astro-ph.HE 2026-06 unverdicted novelty 6.0

    Detection of a thermal X-ray shock-breakout event from pre-explosion ejecta of a stripped massive star, indicating abrupt mass loss within a month of core collapse.

  3. SN 2025aico: Early observations of a faint Type IIb supernova with a low-mass envelope

    astro-ph.SR 2026-07 accept novelty 4.0

    SN 2025aico is a low-luminosity Type IIb from a compact He star (M_env≈0.01 M⊙, R_env≈6–10 R⊙) with M_Ni≈0.033 M⊙, M_ej≈2.8 M⊙ and weak-to-moderate 56Ni mixing.