5 papers
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 COLIBRÃ, the Harling…
AT2025ulz and S250818k: zooming in with the Hubble Space Telescope
Yu-Han Yang, Eleonora Troja, Marko RistiÄ +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…
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…
Extremely luminous optical afterglow of an energetic gamma-ray burst GRB 230204B
Rahul Gupta, Judith Racusin, Vladimir Lipunov +47
Robotic telescope networks play an important role in capturing early and bright optical afterglows, providing critical insights into the energetics and emission mechanisms of GRBs.…
The detectability of high-redshift gamma-ray bursts near-infrared afterglows with CAGIRE
Francis Fortin, Jean-Luc Atteia, Alix Nouvel de la Flèche +12
Context. Transient sky astronomy is entering a new era with the advent of the SVOM mission (Space Variable Objects Monitor), which was successfully launched on the 26th of June, 20…