ANR PARMIGIANO
PARticles transported from MutIple accelerators: the Gamma-ray sIgnAl of exteNded sOurces

PARMIGIANO is a project carried by researchers of the Observatoire de Paris (LUX), IRAP, CPPM, and CEA/FSLAC.
The ultimate goal of the project is to make sense of gamma-ray and multi-wavelength emission from
complex extended Galactic sources, to answer two fundamental questions on CRs:
1. What are the main astrophysical sources of Galactic cosmic rays?
2. How are particles transported around their accelerators ?

Example of complex extended region of interest : G106.3+2.7 as observed by MAGIC (Abe et al. 2023). The color scale shows the significance map of photons with energies above 0.2 TeV. The white contours correspond to radio observations at 1420 MHz from the Dominion Radio Astrophysical Observatory (DRAO) Synthesis Telescope (Pineault & Jones 2000). The small solid blue circle indicates the position of J2229+6114. The green circles represent the LHAASO observations (Yang et al. 2022), with the thick circle corresponding to the WCDA data and the thin one to KM2A; the centre of the detected emission is marked with an ‘x’.

PARMIGIANO will help advance on these questions, by making use of data from current instruments like
Fermi, H.E.S.S., HAWC, or LHAASO, and in view of next-generation observatories in which France has a major implications like CTAO. The advances enabled by PARMIGIANO will also become instrumental for the interpretation of CTAO data in the near future.

Project Manager :

Pierre Cristofari