Pith. sign in

REVIEW 4 cited by

Unravelling the asphericities in the explosion and multi-faceted circumstellar matter of SN 2023ixf

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

arxiv 2405.20989 v2 pith:3QHPZ5HO submitted 2024-05-31 astro-ph.HE astro-ph.GAastro-ph.SR

classification astro-ph.HEastro-ph.GAastro-ph.SR
keywords solarmassalongasphericaldenseejectaevolutionmodeling
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
read the original abstract

We present a detailed investigation of photometric, spectroscopic, and polarimetric observations of the Type II SN 2023ixf. Earlier studies have provided compelling evidence for a delayed shock breakout from a confined dense circumstellar matter (CSM) enveloping the progenitor star. The temporal evolution of polarization in SN~2023ixf revealed three distinct peaks in polarization evolution at 1.4 d, 6.4 d, and 79.2 d, indicating an asymmetric dense CSM, an aspherical shock front and clumpiness in the low-density extended CSM, and an aspherical inner ejecta/He-core. SN 2023ixf displayed two dominant axes, one along the CSM-outer ejecta and the other along the inner ejecta/He-core, showcasing the independent origin of asymmetry in the early and late evolution. The argument for an aspherical shock front is further strengthened by the presence of a high-velocity broad absorption feature in the blue wing of the Balmer features in addition to the P-Cygni absorption post 16 d. Hydrodynamical light curve modeling indicated a progenitor of 10 solar mass with a radius of 470 solar radii and explosion energy of 2e51 erg, along with 0.06 solar mass of 56-Ni, though these properties are not unique due to modeling degeneracies. The modeling also indicated a two-zone CSM: a confined dense CSM extending up to 5e14 cm, with a mass-loss rate of 1e-2 solar mass per year, and an extended CSM spanning from 5e14 cm to at least 1e16cm with a mass-loss rate of 1e-4 solar mass per year, both assuming a wind-velocity of 10 km/s. The early nebular phase observations display an axisymmetric line profile of [OI], red-ward attenuation of the emission of Halpha post 125 days, and flattening in the Ks-band, marking the onset of dust formation.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 4 Pith papers

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

  1. Evidence for Asymmetric Ejecta and Circumstellar Material in SN 2023ixf Inferred from Extensive Nebular-phase Observations

    astro-ph.HE 2026-07 conditional novelty 6.5 of 10

    Nebular spectra of SN 2023ixf reveal asymmetric ejecta with ≥2 Ni-rich plumes and initially aspherical dense CSM that has been swept up, producing intermediate-width and high-velocity Hα components.

  2. SN 2022xus: bridging the gap between Type IIP and IIL supernovae

    astro-ph.HE 2026-07 conditional novelty 4.0 of 10

    SN 2022xus is a transitional Type II supernova with a 94.8-day plateau, a decline rate of 1.23 mag per 100 days, mixed IIP/IIL spectral features, and a likely 12-15 solar-mass progenitor.

  3. SN 2023ixf in M101: physical parameters from bolometric light curve modeling

    astro-ph.HE 2025-08 unverdicted novelty 4.0 of 10

    SN 2023ixf produced 0.046 ± 0.007 solar masses of nickel and ejected less than 9 solar masses, based on bolometric light curve modeling.

  4. SN 2023ixf: The Closest Supernova of the Decade

    astro-ph.HE 2025-07 unverdicted novelty 1.0 of 10

    SN 2023ixf is a type II supernova that exploded inside dense, confined circumstellar material lost by its red supergiant progenitor in the final years before explosion, as established by synthesizing over 80 published...

Pith tools