activity
20172026
most citedThe Fast, Luminous Ultraviolet Transient AT2018cow: Extreme Supernova, or Disruption of a Star by an Intermediate-Mass Black Hole?

230 citations · 891 across the 43 of their papers we have counts for

collaborators
Showing 2025Show all

6 papers · 1 filter

astro-ph.HE2025

AT2025ulz and S250818k: Deep X-ray and radio limits on off-axis afterglow emission and prospects for future discovery

Brendan O'Connor, Roberto Ricci, Eleonora Troja +15

The first joint electromagentic (EM) and gravitational wave (GW) detection, known as GW170817, marked a critical juncture in our collective understanding of compact object mergers.…

astro-ph.HE2025★ 3 cited

Evidence of Energy Injection in the Short and Distant GRB 250221A in a High Density Environment

Camila Angulo-Valdez, Rosa L. Becerra, Ramandeep Gill +29

We present the photometric and spectroscopic analysis of the short-duration GRB 250221A ( s), using a data set from the optical facilities COLIBRÍ, the Harlingt…

astro-ph.HE2025

AT2025ulz and S250818k: zooming in with the Hubble Space Telescope

Yu-Han Yang, Eleonora Troja, Marko Ristić +19

AT2025ulz is an optical/near-infrared transient discovered during follow-up of the candidate gravitational wave (GW) event S250818k. Its young age (1 d), rapid decline an…

astro-ph.HE2025★ 2 cited

Exploring the connection between compact object mergers and fast X-ray transients: The cases of LXT 240402A and EP250207b

R. L. Becerra, Yu-Han Yang, Eleonora Troja +29

The connection between compact object mergers and some extragalactic fast X-ray transients (FXRTs) has long been hypothesized, but never ultimately established. In this work, we in…

astro-ph.HE2025

Late-afterglow Emission from a Quasi-spherical Outflow in a stratified environment

Nissim Fraija, Boris Betancourt-Kamenetskaia, Antonio Galván +7

Gamma-ray bursts (GRBs) are cosmic events occurring at large distances beyond our galaxy. They provide a unique opportunity to study electromagnetic patterns not seen elsewhere. Wh…

astro-ph.HE2025★ 2 cited

Radio observations point to a moderately relativistic outflow in the fast X-ray transient EP241021a

Muskan Yadav, Eleonora Troja, Roberto Ricci +7

Fast X-ray transients (FXRTs) are short-lived X-ray outbursts with diverse progenitor scenarios, including compact object mergers, stellar core-collapses and tidal disruption event…