Two stripped envelope supernovae with circumstellar interaction-But only one really shows it

J Sollerman, C Fransson, C Barbarino… - Astronomy & …, 2020 - aanda.org
Context. We present observations of SN 2019tsf (ZTF19ackjszs) and SN 2019oys
(ZTF19abucwzt). These two stripped envelope (SE) Type Ib supernovae (SNe) suddenly …

The broad-lined Type-Ic supernova SN 2022xxf and its extraordinary two-humped light curves-I. Signatures of H/He-free interaction in the first four months

H Kuncarayakti, J Sollerman, L Izzo, K Maeda… - Astronomy & …, 2023 - aanda.org
We report on our study of the supernova (SN) 2022xxf based on observations obtained
during the first four months of its evolution. The light curves (LCs) display two humps of …

SN 2018bsz: A Type I superluminous supernova with aspherical circumstellar material

M Pursiainen, G Leloudas, E Paraskeva… - Astronomy & …, 2022 - aanda.org
We present a spectroscopic analysis of the most nearby Type I superluminous supernova
(SLSN-I), SN 2018bsz. The photometric evolution of SN 2018bsz has several surprising …

The interaction of supernova 2018evt with a substantial amount of circumstellar matter–An SN 1997cy-like event

Y Yang, D Baade, P Hoeflich, L Wang… - Monthly Notices of …, 2023 - academic.oup.com
ABSTRACT A rare class of supernovae (SNe) is characterized by strong interaction between
the ejecta and several solar masses of circumstellar matter (CSM) as evidenced by strong …

Supernova 2020wnt: An Atypical Superluminous Supernova with a Hidden Central Engine

S Tinyanont, SE Woosley, K Taggart… - The Astrophysical …, 2023 - iopscience.iop.org
We present observations of a peculiar hydrogen-and helium-poor stripped-envelope (SE)
supernova (SN) 2020wnt, primarily in the optical and near-infrared (near-IR). Its peak …

Circumstellar Medium Interaction in SN 2018lab, A Low-luminosity Type IIP Supernova Observed with TESS

J Pearson, G Hosseinzadeh, DJ Sand… - The Astrophysical …, 2023 - iopscience.iop.org
We present photometric and spectroscopic data of SN 2018lab, a low-luminosity Type IIP
supernova (LLSN) with a V-band peak luminosity of− 15.1±0.1 mag. SN 2018lab was …

The Carnegie Supernova Project I-Spectroscopic analysis of stripped-envelope supernovae

S Holmbo, MD Stritzinger, E Karamehmetoglu… - Astronomy & …, 2023 - aanda.org
An analysis leveraging 170 optical spectra of 35 stripped-envelope (SE) core-collapse
supernovae (SNe) observed by the Carnegie Supernova Project I and published in a …

Stripped-envelope supernova SN 2004dk is now interacting with hydrogen-rich circumstellar material

JC Mauerhan, AV Filippenko, WK Zheng… - Monthly Notices of …, 2018 - academic.oup.com
The dominant mechanism and time-scales over which stripped-envelope supernovae (SNe)
progenitor stars shed their hydrogen envelopes are uncertain. Observations of Type Ib and …

Late-time H/He-poor Circumstellar Interaction in the Type Ic Supernova SN 2021ocs: An Exposed Oxygen–Magnesium Layer and Extreme Stripping of the Progenitor

H Kuncarayakti, K Maeda, L Dessart… - The Astrophysical …, 2022 - iopscience.iop.org
Supernova (SN) 2021ocs was discovered in the galaxy NGC 7828 (z= 0.01911) within the
interacting system Arp 144 and subsequently classified as a normal Type Ic SN around peak …

Moderately luminous Type II supernovae

C Inserra, A Pastorello, M Turatto, ML Pumo… - Astronomy & …, 2013 - aanda.org
Context. Core-collapse Supernovae (CC-SNe) descend from progenitors more massive than
about 8 M⊙. Because of the young age of the progenitors, the ejecta may eventually interact …