[HTML][HTML] Carnegie Supernova Project I and II: Measurements of H 0 Using Cepheid, Tip of the Red Giant Branch, and Surface Brightness Fluctuation Distance …

SA Uddin, CR Burns, MM Phillips… - The Astrophysical …, 2024 - iopscience.iop.org
We present an analysis of Type Ia supernovae (SNe Ia) from the Carnegie Supernova
Project I and II and extend the Hubble diagram from optical to near-infrared wavelengths …

Ground-based and JWST Observations of SN 2022pul. I. Unusual Signatures of Carbon, Oxygen, and Circumstellar Interaction in a Peculiar Type Ia Supernova

MR Siebert, LA Kwok, J Johansson… - The Astrophysical …, 2024 - iopscience.iop.org
Nebular-phase observations of peculiar Type Ia supernovae (SNe Ia) provide important
constraints on progenitor scenarios and explosion dynamics for both these rare SNe and the …

The luminous type Ia supernova 2022ilv and its early excess emission

S Srivastav, SJ Smartt, ME Huber… - The Astrophysical …, 2023 - iopscience.iop.org
We present observations and analysis of the hostless and luminous Type Ia supernova
2022ilv, illustrating it is part of the 2003fg-like family, often referred to as super …

SN 2021zny: an early flux excess combined with late-time oxygen emission suggests a double white dwarf merger event

G Dimitriadis, K Maguire… - Monthly Notices of …, 2023 - academic.oup.com
We present a photometric and spectroscopic analysis of the ultraluminous and slowly
evolving 03fg-like Type Ia SN 2021zny. Our observational campaign starts from∼ 5.3 h after …

Carnegie Supernova Project: The First Homogeneous Sample of Super-Chandrasekhar-mass/2003fg-like Type Ia Supernovae

C Ashall, J Lu, EY Hsiao, P Hoeflich… - The Astrophysical …, 2021 - iopscience.iop.org
We present a multiwavelength photometric and spectroscopic analysis of 13 super-
Chandrasekhar-mass/2003fg-like Type Ia supernovae (SNe Ia). Nine of these objects were …

Carnegie Supernova Project-I and -II: Measurements of using Cepheid, TRGB, and SBF Distance Calibration to Type Ia Supernovae

SA Uddin, CR Burns, MM Phillips, NB Suntzeff… - arXiv preprint arXiv …, 2023 - arxiv.org
We present an analysis of Type Ia Supernovae (SNe~ Ia) from both the Carnegie Supernova
Project~ I (CSP-I) and II (CSP-II), and extend the Hubble diagram from the optical to the near …

JWST MIRI/Medium Resolution Spectrograph (MRS) Observations and Spectral Models of the Underluminous Type Ia Supernova 2022xkq

JM DerKacy, C Ashall, P Hoeflich, E Baron… - The Astrophysical …, 2024 - iopscience.iop.org
We present a JWST mid-infrared (MIR) spectrum of the underluminous Type Ia Supernova
(SN Ia) 2022xkq, obtained with the medium-resolution spectrometer on the Mid-Infrared …

The Progenitors of Superluminous Type Ia Supernovae

MF Axen, P Nugent - The Astrophysical Journal, 2023 - iopscience.iop.org
Recent observations of type Ia supernovae (SNe Ia) have discovered a subclass of" super-
Chandrasekhar" SNe Ia (SC SNe Ia) whose high luminosities and low ejecta velocities …

A Carbon/Oxygen-dominated Atmosphere Days after Explosion for the “Super-Chandrasekhar” Type Ia SN 2020esm

G Dimitriadis, RJ Foley, N Arendse… - The Astrophysical …, 2022 - iopscience.iop.org
Seeing pristine material from the donor star in a type Ia supernova (SN Ia) explosion can
reveal the nature of the binary system. In this paper, we present photometric and …

Ground-based and JWST Observations of SN 2022pul. II. Evidence from Nebular Spectroscopy for a Violent Merger in a Peculiar Type Ia Supernova

LA Kwok, MR Siebert, J Johansson… - The Astrophysical …, 2024 - iopscience.iop.org
We present an analysis of ground-based and JWST observations of SN 2022pul, a peculiar"
03fg-like"(or" super-Chandrasekhar") Type Ia supernova (SN Ia), in the nebular phase at …