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Related papers: SN 2020udy: a SN Iax with strict limits on interac…

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We present optical observations and analysis of a bright type Iax SN~2020udy hosted by NGC 0812. The light curve evolution of SN~2020udy is similar to other bright Iax SNe. Analytical modeling of the quasi bolometric light curves of SN…

We present results based on observations of SN 2015H which belongs to the small group of objects similar to SN 2002cx, otherwise known as type Iax supernovae. The availability of deep pre-explosion imaging allowed us to place tight…

SN 2024aecx is a nearby ($\sim$11 Mpc) Type IIb SN discovered within $\sim$1 d after explosion. In this paper we report high-cadence photometric (typically 0.5$\sim$1 day) and spectroscopic follow-up observations, conducted from as early as…

Type Iax supernovae represent the largest class of peculiar white-dwarf supernovae. The type Iax SN~2012Z in NGC 1309 is the only white dwarf supernova with a detected progenitor system in pre-explosion observations. Deep \textit{Hubble…

We present comprehensive photometric and spectroscopic observations of Supernova (SN) 2022eyw, a luminous member of the Type Iax SN subclass. SN 2022eyw reached a peak absolute magnitude of $M_g = -17.80\pm0.15$ mag and exhibited a rise…

High Energy Astrophysical Phenomena · Physics 2026-03-03 Hrishav Das , Devendra K. Sahu , Anirban Dutta , Mridweeka Singh , G. C. Anupama , Rishabh Singh Teja

We describe observed properties of the Type Iax class of supernovae (SNe Iax), consisting of SNe observationally similar to its prototypical member, SN 2002cx. The class currently has 25 members, and we present optical photometry and/or…

Photometric and spectroscopic data for two Low Luminosity Type IIP Supernovae (LL SNe IIP) are presented. SN 2020cxd reaches a peak absolute magnitude $M_{r}$ = -13.90 $\pm$ 0.05 mag two days after explosion, subsequently settling on a…

We present extensive ultraviolet to optical photometric and optical to near-infrared (NIR) spectroscopic follow-up observations of the nearby intermediate-luminosity ($M_V = -16.81\pm0.19$~mag) Type Iax supernova (SN) 2024pxl in NGC 6384.…

High Energy Astrophysical Phenomena · Physics 2026-02-04 Mridweeka Singh , Lindsey A. Kwok , Saurabh W. Jha , R. Dastidar , Conor Larison , Alexei V. Filippenko , Jennifer E. Andrews , Moira Andrews , G. C. Anupama , Prasiddha Arunachalam , Katie Auchettl , Dominik BÁnhidi , Barnabas Barna , K. Azalee Bostroem , Thomas G. Brink , RÉgis Cartier , Ping Chen , Collin T. Christy , David A. Coulter , Sofia Covarrubias , Kyle W. Davis , Connor B. Dickinson , Yize Dong , Joseph Farah , Andreas FlÖrs , Ryan J. Foley , Noah Franz , Christoffer Fremling , LluÍs Galbany , Anjasha Gangopadhyay , Aarna Garg , Elinor L. Gates , Or Graur , Alexa C. Gordon , Daichi Hiramatsu , Emily Hoang , D. Andrew Howell , Brian Hsu , Joel Johansson , Arti Joshi , Lordrick A. Kahinga , Ravjit Kaur , Sahana Kumar , Piramon Kumnurdmanee , Hanindyo Kuncarayakti , Natalie Lebaron , C. Lidman , Chang Liu , Keiichi Maeda , Kate Maguire , Bailey Martin , Curtis Mccully , Darshana Mehta , Luca M. Menotti , Anne J. Metevier , A. A. Miller , Kuntal Misra , C. Tanner Murphey , Megan Newsome , Estefania Padilla Gonzalez , Kishore C. Patra , Jeniveve Pearson , Anthony L. Piro , Abigail Polin , Aravind P. Ravi , Armin Rest , Nabeel Rehemtulla , Nicolas Meza Retamal , O. M. Robinson , CÉsar Rojas-Bravo , Devendra K. Sahu , David J. Sand , Brian P. Schmidt , Steve Schulze , Michaela Schwab , Manisha Shrestha , Matthew R. Siebert , Sunil Simha , Nathan Smith , Jesper Sollerman , Shubham Srivastav , Bhagya M. Subrayan , TamÁs Szalai , Kirsty Taggart , Rishabh Singh Teja , Jacco H. Terwel , Samaporn Tinyanont , Stefano Valenti , JÓzsef VinkÓ , Aya L. Westerling , J. Craig Wheeler , Yi Yang , Weikang Zheng

We present optical photometric and spectroscopic analysis of a Type Iax supernova (SN) 2020rea situated at the brighter luminosity end of Type Iax supernovae (SNe). The light curve decline rate of SN~2020rea is $\Delta$m$_{15}$(g) =…

We present ultraviolet (UV) through near-infrared (NIR) photometric and spectroscopic observations of the nearby SN 2024pxl, the third Type Ia supernova (SN Ia) in NGC 6384. SN 2024pxl is a Type Iax supernova (SN Iax) with an intermediate…

We present the analysis of SN 2020wnt, an unusual hydrogen-poor super-luminous supernova (SLSN-I), at a redshift of 0.032. The light curves of SN 2020wnt are characterised by an early bump lasting $\sim5$ days, followed by a bright main…

We present the results of low-resolution spectroscopic and densely sampled multi-band photometric follow-up of supernova (SN) 2024aecx. The SN was discovered in the spiral galaxy NGC 3521 (distance $\sim$11 Mpc) within a day after the…

Type Iax supenovae (SNe Iax) are an important sub-luminous class of SNe Ia. However, their progenitors and explosion mechanism have not been understood yet. It has been suggested that SNe Iax may be produced from weak deflagration…

Solar and Stellar Astrophysics · Physics 2020-07-30 Yaotian Zeng , Zheng-Wei Liu , Zhanwen Han

We present photometric and spectroscopic observations of Type IIP supernova SN 2023axu, spanning $\sim$400 d after the explosion. Its light curve is typical of normal SNe IIP, with a V-band peak of $-17.25 \pm 0.06$ mag and no early-time…

High Energy Astrophysical Phenomena · Physics 2026-03-16 Zeyi Wang , Jujia Zhang , Qian Zhai , Liping Li , G. Valerin , A. Reguitti , A. Pastorello , Zhenyu Wang , Zeyi Zhao , Tengfei Song , Yongzhi Cai

We present multi-wavelength follow-up observations of the ATLAS discovered faint Iax supernova SN 2020kyg that peaked at an absolute magnitude of $M_g \approx -14.9 \pm 0.2$, making it another member of the faint Iax supernova population.…

We present observations and analysis of the host-less and luminous type Ia supernova 2022ilv, illustrating it is part of the 2003fg-like family, often referred to as super-Chandrasekhar (Ia-SC) explosions. The ATLAS light curve shows…

Early-time radiative signals from type Ia supernovae (SNe Ia) can provide important constraints on the explosion mechanism and the progenitor system. We present observations and analysis of SN 2019np, a nearby SN Ia discovered within 1-2…

We present an analysis of the optical and near-infrared properties of SN 2022lxg, a bright ($\rm M_{g\, \mathrm{peak}}=-19.41$ mag) and rapidly evolving SN. It was discovered within a day of explosion, and rose to peak brightness in 10 d.…

We present X-ray and radio observations of what may be the closest type Iax supernova (SN) to date, SN 2014dt (d=12.3-19.3 Mpc) and provide tight constraints on the radio and X-ray emission. We infer a specific radio luminosity of <…

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