activity
20002026
most citedCalibration of X-ray absorption in our Galaxy

812 citations · 2.1k across the 40 of their papers we have counts for

collaborators

42 papers

astro-ph.HE2026

Chasing Gamma-Ray Signals from Binary Neutron Star Coalescences with the Cherenkov Telescope Array: Prospects and Observing Strategies

S. Abe, J. Abhir, A. Abhishek +457

The detection of gravitational waves (GWs) from a binary neutron star (BNS) merger by Advanced LIGO and Advanced Virgo (GW170817), together with its electromagnetic counterpart, th…

astro-ph.HE2026★ 2 cited

GRB 180728A and SN 2018fip: the nearest high-energy cosmological gamma-ray burst with an associated supernova

A. Rossi, L. Izzo, K. Maeda +29

The long GRB 180728A, at a redshift of , stands out due to its high isotropic energy of erg, in contrast with most events at redshif…

astro-ph.HE2025

A LOFAR search for coherent radio emission accompanying prompt engine activity in gamma-ray bursts

A. Hennessy, R. L. C. Starling, A. Rowlinson +7

Relativistic jets generated in gamma-ray bursts (GRBs) produce luminous transient events, yet the fundamentals of jet composition and radiation mechanisms remain unclear. One means…

astro-ph.HE2025★ 2 cited

Discovery and Analysis of Afterglows from Poorly Localised GRBs with the Gravitational-wave Optical Transient Observer (GOTO) All-sky Survey

Amit Kumar, B. P. Gompertz, B. Schneider +86

Gamma-ray bursts (GRBs), particularly those detected by wide-field instruments such as the Fermi/GBM, pose a challenge for optical follow-up due to their large initial localisation…

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★ 3 cited

Prospects for dark matter observations in dwarf spheroidal galaxies with the Cherenkov Telescope Array Observatory

K. Abe, S. Abe, J. Abhir +491

The dwarf spheroidal galaxies (dSphs) orbiting the Milky Way are widely regarded as systems supported by velocity dispersion against self-gravity, and as prime targets for the sear…

astro-ph.HE2025★ 4 cited

GRB 241105A: A test case for GRB classification and rapid r-process nucleosynthesis channels

Dimple, B. P. Gompertz, A. J. Levan +85

Gamma-ray bursts (GRBs) offer a powerful window to probe the progenitor systems responsible for the formation of heavy elements through the rapid neutron capture (r-) process, than…

astro-ph.GA2025★ 1 cited

First IFU observations of two GRB host galaxies at cosmic noon with JWST/NIRSpec

B. Topçu, P. Schady, S. Wuyts +16

Long gamma-ray bursts (GRBs) serve as powerful probes of distant galaxies. Their luminous afterglow pinpoints galaxies independent of luminosity, in contrast to most flux-limited s…

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★ 4 cited

Varying linear polarisation in the dust-free GRB 210610B

J. F. Agüí Fernández, A. de Ugarte Postigo, C. C. Thöne +19

Long gamma ray bursts (GRBs) are produced by the collapse of some very massive stars, which emit ultra-relativistic jets. When the jets collide with the interstellar medium they de…

hep-ph2024★ 18 cited

Dark Matter Line Searches with the Cherenkov Telescope Array

S. Abe, J. Abhir, A. Abhishek +562

Monochromatic gamma-ray signals constitute a potential smoking gun signature for annihilating or decaying dark matter particles that could relatively easily be distinguished from a…

astro-ph.HE2023★ 1 cited

A candidate coherent radio flash following a neutron star merger

A. Rowlinson, I. de Ruiter, R. L. C. Starling +10

In this paper, we present rapid follow-up observations of the short GRB 201006A, consistent with being a compact binary merger, using the LOw Frequency ARray (LOFAR). We have detec…

astro-ph.GA2023

Comparing emission- and absorption-based gas-phase metallicities in GRB host galaxies at using JWST

P. Schady, R. M. Yates, L. Christensen +34

Much of what is known of the chemical composition of the universe is based on emission line spectra from star forming galaxies. Emission-based inferences are, nevertheless, model-d…

astro-ph.HE2023★ 9 cited

Prospects for -ray observations of the Perseus galaxy cluster with the Cherenkov Telescope Array

The Cherenkov Telescope Array Consortium, :, K. Abe +564

Galaxy clusters are expected to be dark matter (DM) reservoirs and storage rooms for the cosmic-ray protons (CRp) that accumulate along the cluster's formation history. Accordingly…

astro-ph.HE2023★ 4 cited

A LOFAR prompt search for radio emission accompanying X-ray flares in GRB 210112A

A. Hennessy, R. L. C. Starling, A. Rowlinson +14

The composition of relativistic gamma-ray burst (GRB) jets and their emission mechanisms are still debated, and they could be matter or magnetically dominated. One way to distingui…

astro-ph.HE2023★ 1 cited

Finding LoTSS of hosts for GRBs: a search for galaxy - gamma-ray burst coincidences at low frequencies with LOFAR

R. A. J. Eyles-Ferris, R. L. C. Starling

The LOFAR Two-Metre Sky Survey (LoTSS) is an invaluable new tool for investigating the properties of sources at low frequencies and has helped to open up the study of galaxy popula…

astro-ph.HE2023★ 13 cited

GRB 201015A and the nature of low-luminosity soft gamma-ray bursts

M. Patel, B. P. Gompertz, P. T. O'Brien +20

GRB 201015A is a peculiarly low luminosity, spectrally soft gamma-ray burst (GRB), with s (time interval of detection of 90\% of photons from the GRB), a…

astro-ph.HE2023★ 47 cited

The first JWST spectrum of a GRB afterglow: No bright supernova in observations of the brightest GRB of all time, GRB 221009A

A. J. Levan, G. P. Lamb, B. Schneider +57

We present JWST and Hubble Space Telescope (HST) observations of the afterglow of GRB 221009A, the brightest gamma-ray burst (GRB) ever observed. This includes the first mid-IR spe…

astro-ph.HE2023★ 12 cited

The brightest GRB ever detected: GRB 221009A as a highly luminous event at z = 0.151

D. B. Malesani, A. J. Levan, L. Izzo +39

Context: The extreme luminosity of gamma-ray bursts (GRBs) makes them powerful beacons for studies of the distant Universe. The most luminous bursts are typically detected at moder…

astro-ph.GA2022★ 33 cited

Dissecting the interstellar medium of a z=6.3 galaxy: X-shooter spectroscopy and HST imaging of the afterglow and environment of the Swift GRB 210905A

A. Saccardi, S. D. Vergani, A. De Cia +35

The study of the properties of galaxies in the first billion years after the Big Bang is one of the major topic of current astrophysics. Optical/near-infrared spectroscopy of the a…

astro-ph.HE2022★ 7 cited

Simulated optical light curves of super-Eddington tidal disruption events with ZEBRA flows

R. A. J. Eyles-Ferris, R. L. C. Starling, P. T. O'Brien +2

We present simulated optical light curves of super-Eddington tidal disruption events (TDEs) using the zero-Bernoulli accretion (ZEBRA) flow model, which proposes that during the su…

cs.CV2022★ 6 cited

Self-Supervised Clustering on Image-Subtracted Data with Deep-Embedded Self-Organizing Map

Y. -L. Mong, K. Ackley, T. L. Killestein +45

Developing an effective automatic classifier to separate genuine sources from artifacts is essential for transient follow-ups in wide-field optical surveys. The identification of t…

astro-ph.HE2022★ 3 cited

Extragalactic transient candidates in the Second Swift-XRT Point Source catalogue

R. A. J. Eyles-Ferris, R. L. C. Starling, P. T. O'Brien +1

The Second Swift-XRT Point Source catalogue offers a combination of sky coverage and sensitivity and presents an invaluable opportunity for transient discovery. We search the catal…

astro-ph.HE2022★ 21 cited

A blast from the infant Universe: the very high-z GRB 210905A

A. Rossi, D. D. Frederiks, D. A. Kann +52

We present a detailed follow-up of the very energetic GRB 210905A at a high redshift of z = 6.312 and its luminous X-ray and optical afterglow. We obtained a photometric and spectr…