activity
20242026
collaborators

9 papers

astro-ph.HE2026

The Deeper, Wider, Faster programme's first DECam optical data release

James Freeburn, Jeff Cooke, Anais Möller +17

The transient and variable optical sky is relatively poorly characterised on fast (1hr) timescales. With the Dark Energy Camera (DECam), the Deeper, Wider, Faster programme…

astro-ph.SR2025

An extremely fast fading population II dwarf nova candidate: caught spectroscopically on the rise

Natasha Van Bemmel, Jielai Zhang, Jeff Cooke +14

We present AT2022kak, a rapidly evolving optical transient discovered by the KiloNova and Transients Program (KNTraP). This interesting burst exhibited extremely fast evolution, wi…

astro-ph.IM2025

A Machine Learning empowered search for Sub-Minute Optical Transient Events with the Deeper, Wider, Faster programme

Simon R. Goode, Sara A. Webb, Jeff Cooke +12

Optical transient surveys continue to generate increasingly large datasets, prompting the introduction of machine-learning algorithms to search for quality transient candidates eff…

astro-ph.GA2025

FLIMFLAM DR1: The First Constraints on the Cosmic Baryon Distribution from 8 FRB sightlines

Ilya S. Khrykin, Metin Ata, Khee-Gan Lee +15

The dispersion measure of fast radio bursts (FRBs), arising from the interactions of the pulses with free electrons along the propagation path, constitutes a unique probe of the co…

astro-ph.HE2025

A follow-up strategy enabling discovery of electromagnetic counterparts to highly-magnified gravitationally-lensed gravitational waves

Dan Ryczanowski, Jeff Cooke, James Freeburn +6

Making an unambiguous detection of lensed gravitational waves is challenging with current generation detectors due to large uncertainties in sky localisations and other inferred pa…

astro-ph.HE2025

GRB220831A: a hostless, intermediate Gamma-ray burst with an unusual optical afterglow

James Freeburn, Brendan O'Connor, Jeff Cooke +20

GRB220831A is a gamma-ray burst (GRB) with a duration and spectral peak energy that places it at the interface between the distribution of long-soft and short-hard GRBs. In thi…