The gamma emission of a nova predicted in great detail
On August 8, 2021, a "new" star appeared in the constellation of Ophiuchus and remained visible to the naked eye for several days. In fact, it had already been observed…
Vincent Tatischeff: Silver CNRS medal 2022
Vincent Tatischeff, research director (A2C pole, Astrophysics & Cosmochemistry), was rewarded with the CNRS silver medal, given by Vincent Poireau (IN2P3 DAS), in the presence of Sophie Henrot-Versillé, A2C director.…
Vincent Tatischeff: unlocking the secrets of cosmic rays
A specialist in high energy astrophysical phenomena, Vincent Tatischeff is the Director of Research at the Physics of two infinites – Irène Joliot-Curie laboratory (IJCLab – Université Paris-Saclay, Université Paris-Cité,…
The Virgo O3 run and the impact of the environment
Abstract: Sources of geophysical noise (such as wind, sea waves and earthquakes) or of anthropogenic noise impact ground-based gravitational-wave interferometric detectors, causing transient sensitivity worsening and gaps in data taking.…
Article: GRANDMA observations of ZTF/Fink transients during summer 2021
We present our follow-up observations with GRANDMA of transient sources revealed by the Zwicky Transient Facility (ZTF). Over a period of six months, all ZTF alerts were examined in real…
Detecting gravitational waves with Virgo: Nicolas Arnaud explains
Detecting gravitational waves requires managing a lot of data, and being able to find the signal among all the noise affecting the detector. How does the Virgo team achieve this…
IN2P3, 50 years: presentation of A2C
IN2P3 celebrated its 50 years birthday on Apr. 14, 2021. Many events were organized by the IN2P3 laboratories. At IJCLab, the activities of the A2C pole were presented . See…
L’Univers du pôle A2C: première rencontre
The A2C pole will meet on December the 1st for a moment of scientific exchanges at the P. Lehman amphitheatre. This meeting (named L'Univers du pôle A2C: première rencontre) will…
Search for Gravitational Waves Associated with Gamma-Ray Bursts Detected by Fermi and Swift During the LIGO-Virgo Run O3b
We search for gravitational-wave signals associated with gamma-ray bursts detected by the Fermi and Swift satellites during the second half of the third observing run of Advanced LIGO and Advanced…
GWTC-3: Compact Binary Coalescences Observed by LIGO and Virgo During the Second Part of the Third Observing Run
The LIGO and Virgo detectors have observed 35 new gravitational-wave events, between November 2019 and March 2020, during the second half of the third observing run (O3b). The total number…