REVIEW 2 cited by
The runaway velocity of the white dwarf companion in the double detonation scenario of supernovae
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
read the original abstract
We consider the finite velocity of the ejecta of a type Ia supernova (SN Ia) in the double detonation (DDet) scenario with a white dwarf (WD) mass-donor companion, and find that the runaway velocity of the surviving (mass donor) WD is lower than its pre-explosion orbital velocity by about 8-11%. This implies that the fastest runaway WDs in the Galaxy, if come from the DDet scenario, require even more massive WDs than what a simple calculation that neglects the finite ejecta velocity gives. This extreme set of initial conditions makes such binaries less common. We also tentatively find that the inner ejecta deviates from spherical symmetry, but not to the degree that we can use observations to make any claim. Our findings support the claim that the DDet scenario leads mostly to peculiar SNe Ia but not to normal SNe Ia.
Forward citations
Cited by 2 Pith papers
-
The Evolution of Hypervelocity Supernova Survivors and the Outcomes of Interacting Double White Dwarf Binaries
Cool hypervelocity supernova survivors are explained as low-mass, fully convective remnants cooling by Kelvin-Helmholtz contraction, implying about 2% of Type Ia supernovae eject such stars.
-
Spectroscopic and kinematic analyses of a warm survivor of a D6 supernova
A warm carbon-oxygen white dwarf with intermediate-mass element enhancement and a ~2000 km/s space velocity is identified as the surviving donor of a D6 double-detonation supernova.
Discussion (0). Continue with ORCID to comment.