Evaporating Planets in SNe Ia

TL;DR

This paper proposes that rare type Ia supernovae can evaporate nearby Jupiter-like planets, explaining observed hydrogen in the ejecta, and discusses possible formation scenarios for such planets within binary systems.

Contribution

It introduces the idea that evaporating planets can exist around SNe Ia and explores their potential origins across various binary evolution scenarios.

Findings

Presence of hydrogen in SNe Ia ejecta can be explained by evaporating planets.

All five SN Ia binary scenarios could host such planets.

Formation of these planets is challenging but plausible within certain evolutionary paths.

Abstract

I suggest that in rare cases type Ia supernovae (SNe Ia) evaporate Jupiter-like planets that reside within a=50Ro from the SN, accounting for the presence of ~0.001Mo of hydrogen in the ejecta. It is not easy to form such planets. The common envelope evolution (CEE) might end with the formation of a circumbinary disk with a typical size of R(disk)~10-50Ro. However, the bright central star might prevent the formation of planets. Alternatively, the planets might be first-generation planets that survived the entire evolution. Interestingly, all five SN Ia binary scenarios (core degenerate; double degenerate; double detonation; single degenerate; WD-WD collision) might account for the presence of planets.