14–24 Jul 2025
CICG - International Conference Centre - Geneva, Switzerland
Europe/Zurich timezone

SNR vs PWN: who's the accelerator?

18 Jul 2025, 17:20
15m
Room A

Room A

Talk Gamma-Ray Astrophysics GA

Speaker

María Victoria del Valle (University of São Paulo)

Description

The observation of PeVatrons is without doubt one of the major breakthroughs in gamma-ray astronomy. The quest for Galactic cosmic-ray candidates goes hand-in-hand with these discoveries. However, with the advent of the very high-energy observations, many new questions arise. In many of the reported sources the origin of the particles responsible for the gamma-ray is unclear, in many cases multiple candidates exist inside the confidence region of the observation. One special case is that of  MGRO J1908+06 (LHAASO J1908+0621), where the very high-energy emission could be produced by a supernova remnant, a pulsar wind nebula or both. Using a espatial-dependent model we calculate the leptonic and hadronic emission from both sources to fit the observations. Using the multiwavelength data available, we analyse all the possible scenarios for explaining the very high-energy source and determine who is the most probable accelerator behind it.

Collaboration(s) Jaqueline de Fatima Masotti

Author

María Victoria del Valle (University of São Paulo)

Presentation materials