REVIEW 6 cited by
SN 2021csp -- the explosion of a stripped envelope star within a H and He-poor circumstellar medium
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
abstract
We present observations of SN 2021csp, a unique supernova (SN) which displays evidence for interaction with H- and He- poor circumstellar material (CSM) at early times. Using high-cadence spectroscopy taken over the first week after explosion, we show that the spectra of SN 2021csp are dominated by C III lines with a velocity of 1800 km s$^{-1}$. We associate this emission with CSM lost by the progenitor prior to explosion. Subsequently, the SN displays narrow He lines before metamorphosing into a broad-lined Type Ic SN. We model the bolometric light curve of SN 2021csp, and show that it is consistent with the energetic ($4\times10^{51}$ erg) explosion of a stripped star, producing 0.4 M$_\odot$ of 56Ni within a $\sim$1 M$_\odot$ shell of CSM extending out to 400 R$_\odot$.
Forward citations
Cited by 6 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.
-
The progenitors and circumstellar environments of stripped-envelope interacting supernovae from BPASS
Using BPASS, only binary progenitors whose mass loss forms a circum-binary disc reproduce the luminosities and rise times of stripped-envelope interacting supernovae.
-
Towards high-precision inspiral gravitational waveforms from binary neutron star mergers in numerical relativity
A fourth-order hydrodynamics solver in SACRA-MPI reduces binary neutron star inspiral gravitational-wave phase error at merger from about 0.58 to 0.27 radians, while measured convergence order stays near 2.1-2.4.
-
The Hawaii Infrared Supernova Study (HISS): Spectroscopic Data Release 1
HISS DR1 releases 90 NIR spectra of 48 transients and demonstrates spectral analyses including unburnt carbon, nebular lines, CO, and He I diagnostics.
-
Rapid follow-up observations of infant supernovae with the Gran Telescopio Canarias
A GTC rapid-response program obtained spectra of 10 supernovae, only two of which were truly within 48h of first light, and forced photometry shows that survey nondetection limits systematically bias estimated explosi...
-
SN 2024abvb: A Type Icn Supernova in the Outskirts of its Host Galaxy
SN 2024abvb is a newly classified luminous Type Icn supernova whose fitted ejecta mass (~0.12 Msun) implies an extremely stripped progenitor.
Discussion (0). Continue with ORCID to comment.