Evidence for bipolar explosions in Type IIP supernovae

T Nagao, K Maeda, S Mattila, H Kuncarayakti… - Astronomy & …, 2024 - aanda.org
Aims. Recent observations of core-collapse supernovae (SNe) suggest aspherical
explosions. Globally, aspherical structures in SN explosions are thought to encode …

The Early Ultraviolet Light Curves of Type II Supernovae and the Radii of Their Progenitor Stars

I Irani, J Morag, A Gal-Yam, E Waxman… - The Astrophysical …, 2024 - iopscience.iop.org
We present a sample of 34 normal Type II supernovae (SNe II) detected with the Zwicky
Transient Facility, with multiband UV light curves starting at t≤ 4 days after explosion, and X …

Diversity in Hydrogen-rich Envelope Mass of Type II Supernovae. II. SN 2023ixf as Explosion of Partially Stripped Intermediate Massive Star

Q Fang, TJ Moriya, L Ferrari, K Maeda… - The Astrophysical …, 2024 - iopscience.iop.org
SN 2023ixf is one of the most well-observed core-collapse supernovae in recent decades,
yet there is inconsistency in the inferred zero-age main-sequence (ZAMS) mass M ZAMS of …

Supernovae in 2023 (review): breakthroughs by late observations

N Soker - arXiv preprint arXiv:2311.17732, 2023 - arxiv.org
I present a review of how late observations of supernovae, of the nebular phase, and much
later of supernova remnants (SNRs), and their analysis in 2023 made progress towards …

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

A Singh, RS Teja, TJ Moriya, K Maeda… - arXiv preprint arXiv …, 2024 - arxiv.org
We present a detailed investigation of photometric, spectroscopic, and polarimetric
observations of the Type II SN 2023ixf. The early detection of highly-ionized flash features …

Supernova Polarization Signals From the Interaction with a Dense Circumstellar Disk

X Wen, H Gao, Y Yang, L Liu, S Ai, Z Peng - arXiv preprint arXiv …, 2024 - arxiv.org
There is increasing evidence that massive stars may exhibit an enhanced mass loss shortly
before their termination explosion. Some of them also indicate the enhancement of their …

Spectropolarimetry of SN 2023ixf reveals both circumstellar material and helium core to be aspherical

M Shrestha, S DeSoto, DJ Sand, GG Williams… - arXiv preprint arXiv …, 2024 - arxiv.org
We present multi-epoch optical spectropolarimetric and imaging polarimetric observations of
the nearby Type II supernova (SN) 2023ixf discovered in M101 at a distance of 6.85 Mpc …