F6 : At the heart of our galaxy with multi-messenger astronomy: turning back the cosmic clock on SgrA* activity

> Read the articles connected to the project.

The unique context of the Galactic Center region offers unprecedented opportunities to learn about activities and interaction of a super-massive black hole with its local environment and its host Galaxy as well as cosmic-ray (CR) acceleration and transport at different scales in the Milky Way, but it also gives access to a large sample of cosmic accelerators in diverse evolution phases, embedded in a dense interstellar medium and a strong and structured magnetic field. Our team has a long standing experience in analyzing X-ray, Gamma-ray, Neutrinos, multi-wavelength data, as well as strong skills in cosmic accelerators models, phenomenology of CRs and compact object models. We propose to use the different skills of the group into a research program able to make a significant step in understanding the role of the GC at different scales within the Milky Way: whereas neutrino and gamma-ray data will be used to characterize CRs injection and transport in the Central Molecular Zone (CMZ) and highlight a possible emission from SgrA* itself, phenomenological studies will predict the gamma-ray and neutrino signal created by CRs accelerated close to the black hole and model the capability of the past activity of the Galactic Center region in shaping the global Galactic population of CRs. X-ray data will be used to study the history of accretion mechanism around SgrA* and the interaction with local stars, SNRs and X-ray binaries.

A frontier project that proposes to use X-rays, gamma-rays, neutrinos and their connection to cosmic-rays to unveil the origin, evolution, particle acceleration and the interaction of the super-massive black hole with our Galaxy.

  • PositionNameLaboratoryGrade/Employer
    WP1.1 leader WP2 memberAnne LemiereAPCCRCN, CNRS
    WP1.1 member WP2.2 leader WP3 co-leaderRegis TerrierAPCDR, CNRS
    WP1.2 leaderBruny BarretAPCCRCN, CNRS
    WP1.2 memberJulien AublinAPCAssistant professor, Université de Paris
    WP1.1 memberSamuel ZouariAPCPhD
    WP1.2 memberLuigi FuscoAPCPost-doc
    WP2.1 leaderDenis AllardAPCCRCN, CNRS
    WP2.1 co-leaderEtienne ParizotAPCProfessor, Université de Paris
    WP2.3 leaderStefano GabicciAPCCRCN, CNRS
    WP2 memberAndrei NeronovAPCProfessor, Université de Paris
    WP2 memberDimitri SemikozAPCCNRS
    WP3 leaderAndrea GoldwurmAPCCEA
    WP3 memberSylvain ChatyAPCProfessor, Université de Paris
    WP3 memberAlexis ColeiroAPCAssistant professor, Université de Paris
    WP3 memberDimity ChuardAPCPost-doc
    WP3 memberPeggy VarniereAPCCNRS
    WP3 memberFabien CasseAPCProfessor, Université de Paris