activity
20142026
most citedInteraction between Cassiopeia A and Nearby Molecular Clouds

24 citations · 27 across the 13 of their papers we have counts for

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Showing astro-ph.HEShow all

11 papers · 1 filter

astro-ph.HE2026

Hubble as a Unique Discovery Engine of the Fate of Massive Stars and Black Hole Formation

Avishai Gilkis, Eva Laplace, Charles D. Kilpatrick +3

How stellar-mass black holes are formed is an open question in astrophysics, with very limited observational constraints. It is not known which types of stars are more likely to pr…

astro-ph.HE2026

JWST Reveals Large Reservoirs of Dust and Ongoing Circumstellar Interaction in SN Ibn/Icn 2023xgo over a Year Post-Explosion

Kyle W. Davis, Kirsty Taggart, Samaporn Tinyanont +23

We present infrared (IR) photometric and spectroscopic observations of SN 2023xgo, a recent and nearby Type Ibn/Icn supernova (SN Ibn/Icn) which shows shock interaction with a He/C…

astro-ph.HE2026

SN 2024iss: A Multi-Wavelength Exposé of a Type IIb Supernova with an Early-Time Ultraviolet Spectrum and Shock Breakout Constraints

Rujula Yete, Wynn Jacobson-Galan, Ferdinand Ferdinand +49

We present multi-wavelength observations and a comprehensive analysis of the nearby (D14 Mpc) Type IIb supernova (SN IIb) 2024iss. Observations of SN2024iss include an early…

astro-ph.HE2026

Near-Infrared and Optical Observations of SN 2024rbc: The First Early Detection of CO and Dust in a Type Ib Supernova

Ryan Hwangbo, Jeonghee Rho, Aravind P. Ravi +16

We present optical and near-infrared (NIR) observations of the Type Ib supernova (SN) 2024rbc. Emission from the first CO overtone, resting on a dust continuum at m, w…

astro-ph.HE2025

Optical/infrared observations of the extraordinary GRB 250702B: a highly obscured afterglow in a massive galaxy consistent with multiple possible progenitors

Jonathan Carney, Igor Andreoni, Brendan O'Connor +31

GRB 250702B was the longest gamma-ray burst ever detected, with a duration that challenges standard collapsar models and suggests an exotic progenitor. We collected a rich set of o…

astro-ph.HE2025

Long-Term Optical Follow Up of S231206cc: Multi-Model Constraints on BBH Merger Emission in AGN Disks

P. Darc, C. R. Bom, C. D. Kilpatrick +9

The majority of gravitational wave events detected by the LIGO, Virgo, and KAGRA Collaboration originate from binary black hole (BBH) mergers, for which no confirmed electromagneti…

astro-ph.HE2025★ 3 cited

An extremely soft and weak fast X-ray transient associated with a luminous supernova

W. -X. Li, Z. -P. Zhu, X. -Z. Zou +101

Long gamma-ray bursts (LGRBs), including their subclasses of low-luminosity GRBs (LL-GRBs) and X-ray flashes (XRFs) characterized by low spectral peak energies, are known to be ass…

astro-ph.HE2024

SN 2021foa: The "Flip-Flop" Type IIn / Ibn supernova

D. Farias, C. Gall, G. Narayan +29

We present a comprehensive analysis of the photometric and spectroscopic evolution of SN~2021foa, unique among the class of transitional supernovae for repeatedly changing its spec…

astro-ph.HE2024

Uniform Modeling of Observed Kilonovae: Implications for Diversity and the Progenitors of Merger-Driven Long Gamma-Ray Bursts

J. C. Rastinejad, W. Fong, C. D. Kilpatrick +2

We present uniform modeling of eight kilonovae, five following short gamma-ray bursts (GRBs; including GRB170817A) and three following long GRBs. We model their broadband afterglow…

astro-ph.HE2023

A Hubble Space Telescope Search for r-Process Nucleosynthesis in Gamma-ray Burst Supernovae

J. C. Rastinejad, W. Fong, A. J. Levan +23

The existence of a secondary (in addition to compact object mergers) source of heavy element (-process) nucleosynthesis, the core-collapse of rapidly-rotating and highly-magneti…

astro-ph.HE2023

Kilonova Spectral Inverse Modelling with Simulation-Based Inference: An Amortized Neural Posterior Estimation Analysis

P. Darc, Clecio R. Bom, Bernardo M. O. Fraga +1

Kilonovae represent a category of astrophysical transients, identifiable as the electromagnetic observable counterparts associated with the coalescence events of binary systems com…