Far-ultraviolet to near-infrared observations of SN 2023ixf: a high-energy explosion engulfed in complex circumstellar material
We present early-phase panchromatic photometric and spectroscopic coverage spanning
the far-ultraviolet to near-infrared regime of the nearest hydrogen-rich core-collapse …
the far-ultraviolet to near-infrared regime of the nearest hydrogen-rich core-collapse …
The complex circumstellar environment of supernova 2023ixf
The early evolution of a supernova (SN) can reveal information about the environment and
the progenitor star. When a star explodes in vacuum, the first photons to escape from its …
the progenitor star. When a star explodes in vacuum, the first photons to escape from its …
Circumstellar Interaction in the Ultraviolet Spectra of SN 2023ixf 14–66 Days After Explosion
KA Bostroem, DJ Sand, L Dessart… - The Astrophysical …, 2024 - iopscience.iop.org
SN 2023ixf was discovered in M101 within a day of the explosion and rapidly classified as a
Type II supernova with flash features. Here we present ultraviolet (UV) spectra obtained with …
Type II supernova with flash features. Here we present ultraviolet (UV) spectra obtained with …
Using spectral modeling to break light-curve degeneracies of type II supernovae interacting with circumstellar material
L Dessart, WV Jacobson-Galán - Astronomy & Astrophysics, 2023 - aanda.org
A large fraction of red-supergiant stars seem to be enshrouded by circumstellar material
(CSM) at the time of explosion. Relative to explosions in a vacuum, this CSM causes both a …
(CSM) at the time of explosion. Relative to explosions in a vacuum, this CSM causes both a …
SN 2022acko: the first early far-ultraviolet spectra of a Type IIP supernova
KA Bostroem, L Dessart, DJ Hillier… - The Astrophysical …, 2023 - iopscience.iop.org
We present five far-and near-ultraviolet spectra of the Type II plateau supernova, SN
2022acko, obtained 5, 6, 7, 19, and 21 days after explosion, all observed with the Hubble …
2022acko, obtained 5, 6, 7, 19, and 21 days after explosion, all observed with the Hubble …
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 …
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
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 …
Transient Facility, with multiband UV light curves starting at t≤ 4 days after explosion, and X …
Consistency of Type IIP supernova sibling distances
G Csörnyei, C Vogl, S Taubenberger, A Flörs… - Astronomy & …, 2023 - aanda.org
Context. Type II supernovae offer a direct way of estimating distances via the expanding
photosphere method, which is independent of the cosmic distance ladder. A Gaussian …
photosphere method, which is independent of the cosmic distance ladder. A Gaussian …
Spectropolarimetry of the Type IIP supernova 2021yja: an unusually high continuum polarization during the photospheric phase
We present six epochs of optical spectropolarimetry of the Type IIP supernova (SN) 2021yja
ranging from∼ 25 to 95 d after the explosion. An unusually high continuum linear …
ranging from∼ 25 to 95 d after the explosion. An unusually high continuum linear …
Circumstellar Interaction Signatures in the Low-luminosity Type II SN 2021gmj
N Meza-Retamal, Y Dong, KA Bostroem… - The Astrophysical …, 2024 - iopscience.iop.org
We present comprehensive optical observations of SN 2021gmj, a Type II supernova (SN II)
discovered within a day of explosion by the Distance Less Than 40 Mpc survey. Follow-up …
discovered within a day of explosion by the Distance Less Than 40 Mpc survey. Follow-up …