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20232026
most citedThe expansion of the GRB 221009A afterglow

8 citations · 20 across the 21 of their papers we have counts for

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24 papers · 1 filter

astro-ph.HE2026

Comparing the size evolution of GRB 221009A with afterglow models

S. Giarratana, O. S. Salafia, B. Marcote +10

We present very long baseline interferometry (VLBI) observations of GRB221009A obtained with the global-VLBI network at 5 GHz between 231 and 750 days after the burst. The quality…

astro-ph.HE2026

The second Arcminute Microkelvin Imager - Large Array Gamma-ray burst radio afterglow catalog

L. Rhodes, D. Ibrahim, N. Sqalli +13

Radio observations of gamma-ray burst afterglows provide insight in to the different emitting regions within the jet, its hydrodynamics and burst environment. In this paper, we pre…

astro-ph.HE2026

Tidal Disruption Events with the SKA

T. An, A. J. Goodwin, J. C. A. Miller-Jones +3

Tidal disruption events (TDEs) and related nuclear transients probe jet launching, disk formation and circularization, particle acceleration, and the circumnuclear medium (CNM). Ho…

astro-ph.HE2026

SKAO and Gamma-Ray Synergies

Gianluca Castignani, Gavin Rowell, Arnau Aguasca-Cabot +26

A wide variety of Galactic and extragalactic sources are known to emitradiation across the entire electromagnetic spectrum, including both transient and steady-state phenomena. A f…

astro-ph.HE2026

Observational Biases and Improved Modelling of Off-axis Relativistic Jets

A. J. Cooper, A. P. Scott, L. Rhodes +8

Relativistic Doppler boosting significantly affects the observed emission of astrophysical jets resulting in observational biases. In this work we investigate the observational bia…

astro-ph.HE2026

Failed jet breakout in the metal-poor broad-lined type Ic supernova 2026gzf

Antonio Martin-Carrillo, Christina C. Thöne, James K. Leung +103

A long-standing question in the death of massive stars is the role of relativistic jets. While many gamma-ray bursts and some fast X-ray transients seem to be associated with broad…

astro-ph.HE2026

Identification of a Radio Counterpart to SN 2025ulz in the S250818k Localization Area

Tanner O'Dwyer, Alessandra Corsi, Deepika Yadav +12

On 2025 August 18, the LIGO-Virgo-KAGRA collaboration reported S250818k, a sub-threshold gravitational-wave (GW) candidate consistent with a binary neutron star (NS) merger potenti…

astro-ph.HE2026

ATLAS100 -- I. A volume-limited sample of supernovae and related transients within 100 Mpc

Shubham Srivastav, Stephen J. Smartt, Thomas Moore +29

We present ATLAS100 -- a sample of 1729 supernovae and other explosive optical transients within Mpc observed by the ATLAS survey over a span of 5.75 years from 2017 Sep…

astro-ph.HE2026

Exploring the potential for ultra-relativistic jets in Scorpius X-1 with low angular resolution radio observations

I. Stephens, L. Rhodes, A. J. Cooper +2

Scorpius X-1 (Sco X-1) is a neutron star X-ray binary in which the neutron star is accreting rapidly from a low mass stellar companion. At radio frequencies, Sco X-1 is highly lumi…

astro-ph.HE2025★ 1 cited

First Results from the PanRadio Gamma-Ray Burst Collaboration: The 400-day Afterglow of GRB 230815A

James K. Leung, Gemma E. Anderson, Alexander J. van der Horst +26

We introduce the PanRadio Gamma-ray Burst (GRB) program carried out on the Australia Telescope Compact Array: a systematic, multi-year, radio survey of all southern $\textit{Swift}…

astro-ph.HE2025

The radio flare and multi-wavelength afterglow of the short GRB 231117A: energy injection from a violent shell collision

G. E. Anderson, G. P. Lamb, B. P. Gompertz +64

We present the early radio detection and multi-wavelength modeling of the short gamma-ray burst (GRB) 231117A at redshift . The Australia Telescope Compact Array automatic…

astro-ph.HE2025

Evidence for an intrinsic luminosity-decay correlation in GRB radio afterglows

S. P. R. Shilling, S. R. Oates, D. A. Kann +12

We present the discovery of a correlation, in a sample of 16 gamma-ray burst 8.5 GHz radio afterglows, between the intrinsic luminosity measured at 10 days in the rest frame, $L_{\…

astro-ph.HE2025★ 1 cited

Multidisciplinary Science in the Multimessenger Era

Eric Burns, Christopher L. Fryer, Ivan Agullo +82

Astrophysical observations of the cosmos allow us to probe extreme physics and answer foundational questions on our universe. Modern astronomy is increasingly operating under a hol…

astro-ph.HE2025★ 1 cited

The radio afterglow of the ultra-long GRB 220627A

James K. Leung, Om Sharan Salafia, Cristiana Spingola +13

We present the discovery of the radio afterglow of the most distant ultra-long gamma-ray burst (GRB) detected to date, GRB~220627A at redshift . Its prompt gamma-ray light…

astro-ph.HE2024

Identification of the optical counterpart of the fast X-ray transient EP240414a

S. Srivastav, T. -W. Chen, J. H. Gillanders +26

Fast X-ray transients (FXTs) are extragalactic bursts of X-rays first identified in archival X-ray data, and now routinely discovered by the Einstein Probe in real time, which is c…

astro-ph.HE2024

The Radio Counterpart to the Fast X-ray Transient EP240414a

Joe S. Bright, Francesco Carotenuto, Rob Fender +10

Despite being operational for only a short time, the Einstein Probe mission, with its large field of view and rapid localisation capabilities, has already significantly advanced th…

astro-ph.HE2024★ 7 cited

The early radio afterglow of short GRB 230217A

G. E. Anderson, G. Schroeder, A. J. van der Horst +9

We present the radio afterglow of short gamma-ray burst (GRB) 230217A, which was detected less than 1 day after the gamma-ray prompt emission with the Australia Telescope Compact A…

astro-ph.HE2024

Rocking the BOAT: the ups and downs of the long-term radio light curve for GRB 221009A

L. Rhodes, A. J. van der Horst, J. S. Bright +24

We present radio observations of the long-duration gamma-ray burst (GRB) 221009A which has become known to the community as the Brightest Of All Time or the BOAT. Our observations…

astro-ph.HE2024★ 1 cited

The Long-lived Broadband Afterglow of Short Gamma-Ray Burst 231117A and the Growing Radio-Detected Short GRB Population

Genevieve Schroeder, Wen-fai Fong, Charles D. Kilpatrick +28

We present multiwavelength observations of the Swift short -ray burst GRB 231117A, localized to an underlying galaxy at redshift at a small projected offset ($\sim 2…

astro-ph.HE2024

Constraints on Short Gamma-Ray Burst Physics and Their Host Galaxies from Systematic Radio Follow-up Campaigns

S. I. Chastain, A. J. van der Horst, G. E. Anderson +12

Short gamma-ray bursts (GRBs) are explosive transients caused by binary mergers of compact objects containing at least one neutron star. Multi-wavelength afterglow observations pro…

astro-ph.HE2024

Constraints on Relativistic Jets from the Fast X-ray Transient 210423 using Prompt Radio Follow-Up Observations

Dina Ibrahimzade, R. Margutti, J. S. Bright +16

Fast X-ray Transients (FXTs) are a new observational class of phenomena with no clear physical origin. This is at least partially a consequence of limited multi-wavelength follow u…

astro-ph.HE2024★ 1 cited

Discovery of the optical and radio counterpart to the fast X-ray transient EP240315a

J. H. Gillanders, L. Rhodes, S. Srivastav +36

Fast X-ray Transients (FXTs) are extragalactic bursts of soft X-rays first identified >10 years ago. Since then, nearly 40 events have been discovered, although almost all of these…

astro-ph.HE2023★ 8 cited

The expansion of the GRB 221009A afterglow

S. Giarratana, O. S. Salafia, M. Giroletti +14

We observed -ray burst (GRB) 221009A using very long baseline interferomety (VLBI) with the European VLBI Network (EVN) and the Very Long Baseline Array (VLBA), over a period sp…

astro-ph.HE2023

SN 2022jli: a type Ic supernova with periodic modulation of its light curve and an unusually long rise

Moore T., Smartt S. J., Nicholl M. +42

We present multi-wavelength photometry and spectroscopy of SN 2022jli, an unprecedented Type Ic supernova discovered in the galaxy NGC 157 at a distance of 23 Mpc. The mu…