Articles by Christopher Ashall

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Christopher Ashall

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Using nebular near-IR spectroscopy to measure asymmetric chemical distributions in 2003fg-like thermonuclear supernovae

6 days ago by J. O'hora and others

Solar and Stellar Astrophysics, High Energy Astrophysical Phenomena

JWST/MIRI detects the dusty SN1993J about 30 years after explosion

17 March 2025 by Tamás Szalai and others

Solar and Stellar Astrophysics, Astrophysics of Galaxies

SN 2024abfo: a partially stripped SN II from a white supergiant

5 March 2025 by Andrea Reguitti and others

High Energy Astrophysical Phenomena, Astrophysics of Galaxies

Seeing the Outer Edge of the Infant Type Ia Supernova 2024epr in the Optical and Near Infrared

24 February 2025 by W. Hoogendam and others

High Energy Astrophysical Phenomena, Solar and Stellar Astrophysics

Rapid follow-up of infant supernovae with the Gran Telescopio de Canarias

31 January 2025 by Lluís Galbany and others

Solar and Stellar Astrophysics, Astrophysics of Galaxies

Numerical and Physical Challenges to Nebular Spectroscopy in Thermonuclear Supernovae

13 January 2025 by Peter Hoeflich and others

Solar and Stellar Astrophysics, High Energy Astrophysical Phenomena

Discovery and Follow-up of ASASSN-23bd (AT 2023clx): The Lowest Redshift and Least Luminous Tidal Disruption Event To Date

13 January 2025 by W. Hoogendam and others

High Energy Astrophysical Phenomena

From Out of the Blue: Swift Links 2002es-like, 2003fg-like, and Early-Time Bump Type Ia Supernovae

13 January 2025 by W. Hoogendam and others

High Energy Astrophysical Phenomena, Solar and Stellar Astrophysics

Expanding the parameter space of 2002es-like type Ia supernovae: on the underluminous ASASSN-20jq / SN 2020qxp

7 January 2025 by Subhash Bose and others

High Energy Astrophysical Phenomena, Solar and Stellar Astrophysics

SN 2018is: a low-luminosity Type IIP supernova with narrow hydrogen emission lines at early phases

2 January 2025 by Raya Dastidar and others

High Energy Astrophysical Phenomena

On the Double: Two Luminous Flares from the Nearby Tidal Disruption Event ASASSN-22ci (AT2022dbl) and Connections to Repeating TDE Candidates

19 December 2024 by Jason Hinkle and others

High Energy Astrophysical Phenomena

The Red Supergiant Problem: As Seen from the Local Group's Red Supergiant Populations

5 December 2024 by Sarah Healy and others

Solar and Stellar Astrophysics

The Extremely Metal-Poor SN 2023ufx: A Local Analog to High-Redshift Type II Supernovae

26 November 2024 by Michael Tucker and others

Solar and Stellar Astrophysics, Astrophysics of Galaxies

Hawai'i Supernova Flows: A Peculiar Velocity Survey Using Over a Thousand Supernovae in the Near-Infrared

7 November 2024 by Aaron Do and others

Cosmology and Nongalactic Astrophysics

Characterizing the Rapid Hydrogen Disappearance in SN2022crv: Evidence of a Continuum between Type Ib and IIb Supernova Properties

30 October 2024 by Yize Dong and others

High Energy Astrophysical Phenomena, Solar and Stellar Astrophysics

JWST/MIRI Observations of Newly Formed Dust in the Cold, Dense Shell of the Type IIn SN 2005ip

11 October 2024 by Melissa Shahbandeh and others

High Energy Astrophysical Phenomena, Astrophysics of Galaxies

Optical and near-infrared photometry of 94 type II supernovae from the Carnegie Supernova Project

9 October 2024 by Joseph Pierre Anderson and others

Cosmology and Nongalactic Astrophysics

Constraining Dust Formation in the Superluminous Supernova 2017gci with JWST Observations

27 August 2024 by Sebastian Gomez and others

High Energy Astrophysical Phenomena

The Curious Case of ASASSN-20hx: A Slowly-Evolving, UV and X-ray Luminous, Ambiguous Nuclear Transient

24 August 2024 by Jason Hinkle and others

High Energy Astrophysical Phenomena

SCAT Uncovers ATLAS's First Tidal Disruption Event ATLAS18mlw: A Faint and Fast TDE in a Quiescent Balmer Strong Galaxy

24 August 2024 by Jason Hinkle and others at

University of Hawaii

High Energy Astrophysical Phenomena

Type Ia Supernova Progenitor Properties and Their Host Galaxies

27 July 2024 by Sudeshna Chakraborty and others

High Energy Astrophysical Phenomena, Cosmology and Nongalactic Astrophysics

A JWST Medium Resolution MIRI Spectrum and Models of the Type Ia supernova 2021aefx at +415 d

2 July 2024 by Christopher Ashall and others

Solar and Stellar Astrophysics, High Energy Astrophysical Phenomena

Supernova Rates and Luminosity Functions from ASAS-SN I: 2014--2017 Type Ia SNe and Their Subtypes

23 May 2024 by D. Desai and others

High Energy Astrophysical Phenomena

1991T-like Supernovae

23 May 2024 by M. Phillips and others

High Energy Astrophysical Phenomena

Extreme Nuclear Transients Resulting from the Tidal Disruption of Intermediate Mass Stars

14 May 2024 by Jason Hinkle and others

High Energy Astrophysical Phenomena

Optical Spectroscopy of Type Ia Supernovae by the Carnegie Supernova Projects I and II

7 May 2024 by Nidia Morrell and others

High Energy Astrophysical Phenomena

JWST NIRSpec+MIRI Observations of the nearby Type IIP supernova 2022acko

25 January 2024 by Mahsa Shahbandeh and others

High Energy Astrophysical Phenomena, Solar and Stellar Astrophysics

SN 2022acko: the First Early Far-Ultraviolet Spectra of a Type IIP Supernova

12 December 2023 by K. Azalee Bostroem and others

High Energy Astrophysical Phenomena, Solar and Stellar Astrophysics

Flight of the Bumblebee: the Early Excess Flux of Type Ia Supernova 2023bee revealed by TESS, Swift and Young Supernova Experiment Observations

19 November 2023 by Qinan Wang and others

High Energy Astrophysical Phenomena, Solar and Stellar Astrophysics

JWST MIRI/MRS Observations and Spectral Models of the Under-luminous Type Ia Supernova 2022xkq

7 November 2023 by J. Derkacy and others

High Energy Astrophysical Phenomena, Solar and Stellar Astrophysics

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High Energy Astrophysical Phenomena Solar and Stellar Astrophysics Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics Instrumentation and Methods for Astrophysics