6–7 Feb 2023
Facultat de Física
Europe/Madrid timezone

Recent insights on novae explosions at gamma rays

7 Feb 2023, 10:25
25m
Facultat de Física

Facultat de Física

Martí i Franqués, 1 08028 Barcelona

Speaker

Arnau Aguasca-Cabot

Description

A nova is a thermonuclear runaway explosion that takes place at the surface of a white dwarf in a binary system. The detection of novae at high-energy gamma rays (HE, E>100 MeV) in 2010 unveiled the extreme conditions that take place when a nova outburst occurs. At the same time, these detections posed a number of questions on the hadronic or leptonic origin of the gamma-ray emission, on the particle acceleration mechanisms at act, and on the maximum energies attainable in these explosions. Further insights into these questions have been recently obtained following the first-detection ever of a nova explosion at very-high energy gamma rays (VHE, E>100 GeV), the source RS Ophiuchi. In this talk I will review the latest results on novae explosions at VHEs and the implications of their detection in this energy range. I will also provide updated perspectives for current and future Cherenkov facilities to detect new novae explosions occurring in our Galaxy in the next years.

Presentation materials

There are no materials yet.