activity
20212026
most citedThe curious case of EP241021a: Unraveling the mystery of its exceptional rebrightening

21 citations · 27 across the 10 of their papers we have counts for

collaborators

11 papers

astro-ph.HE2026

X-ray Through Radio Observations and Modeling of the Soft X-ray Flash GRB 250419A

Genevieve Schroeder, Anna Y. Q. Ho, Gavin P. Lamb +24

Soft X-ray flashes (XRFs) are predicted from a variety of hypothesized phenomena, including "dirty fireballs" (relativistic jets with significant baryon loading), and gamma-ray bur…

astro-ph.HE2026

A Possible X-ray and Gamma-ray Quasi-Periodic Oscillation in GRB 241030A

Noel Klingler, Cecilia Chirenti, M. Coleman Miller +2

Quasiperiodic oscillations (QPOs) in gamma-ray intensity have been reported from a few gamma-ray bursts. These QPOs could be related to fundamental frequencies in the sources, whic…

astro-ph.HE2026

Discovery of a Supernova Following the Einstein Probe Transient EP250302a at z = 1.131

Brendan O'Connor, Malte Busmann, James Freeburn +7

We present a multi-wavelength analysis of the Einstein Probe (EP) fast X-ray transient (FXT) EP250302a located at redshift . Despite its luminous prompt X-ray emission, th…

astro-ph.HE2025

The nature of UHE source 1LHAASO J1740+0948u and its connection to PSR J1740+1000

Seth Gagnon, Yichao Lin, Alexander Lange +4

We present multi-wavelength analysis of 1LHAASO J1740+0948u and its surroundings including the pulsar wind nebula of middle-aged pulsar PSR J1740+1000. Although a dozen X-ray sourc…

astro-ph.HE2025★ 3 cited

The Advanced X-ray Imaging Satellite (AXIS) Community Science Book

Michael Koss, Nafisa Aftab, Steven W. Allen +395

The AXIS Community Science Book represents the collective effort of 592 scientists worldwide to define the transformative science enabled by the Advanced X-ray Imaging Satellite (A…

astro-ph.HE2025

Testing Magnetic Field Configurations in Spider Pulsar PSR J1723-2837 with IXPE

Michela Negro, Haocheng Zhang, Niccolò Di Lalla +4

We present the first X-ray polarimetry observations of a redback millisecond pulsar binary, PSR J1723-2837, with the Imaging X-ray Polarimetry Explorer (IXPE). We conduct a spectro…

astro-ph.HE2025

Deciphering the Physical Origin of GRB 240825A: A Long GRB Lacking a Bright Supernova

Rahul Gupta, Judith L. Racusin, R. Sanchez-Ramirez +54

We present a comprehensive multiwavelength analysis of GRB 240825A, a bright gamma-ray burst (GRB) detected by Fermi and Swift, with a prompt duration ( 4 sec in…

astro-ph.HE2025★ 21 cited

The curious case of EP241021a: Unraveling the mystery of its exceptional rebrightening

Malte Busmann, Brendan O'Connor, Julian Sommer +19

Fast X-ray Transients (FXTs) are a rare and poorly understood phenomenon with a variety of possible progenitors. The launch of the Einstein Probe (EP) mission has facilitated a rap…

astro-ph.HE2024

Characterization of a peculiar Einstein Probe transient EP240408a: an exotic gamma-ray burst or an abnormal jetted tidal disruption event?

B. O'Connor, D. Pasham, I. Andreoni +30

We present the results of our multi-wavelength (X-ray to radio) follow-up campaign of the Einstein Probe transient EP240408a. The initial 10 s trigger displayed bright soft X-ray (…

astro-ph.HE2024★ 1 cited

An Intermediate Luminosity GRB 210210A: The early onset of the external forward shock in the X-ray?

Rahul Gupta, A. K. Ror, S. B. Pandey +5

We have analyzed the prompt and afterglow characteristics of the intermediate luminosity burst ``GRB 210210A". Our prompt emission analysis indicates that GRB 210210A is among the…

astro-ph.HE2021★ 2 cited

X-ray imaging observations of the high-mass gamma-ray binary HESS J0632+057

Oleg Kargaltsev, Noel Klingler, Jeremy Hare +1

The Chandra X-ray Observatory (CXO) imaged the high-mass gamma-ray binary (HMGB) HESS J0632+057 with the Advanced CCD Imaging Spectrometer (ACIS). We analyzed the CXO data together…