MAGIC results on Galactic binaries

Discussion timeslot (ZOOM-Meeting): 16. July 2021 - 12:00
ZOOM-Meeting URL: https://desy.zoom.us/j/98542982538
ZOOM-Meeting ID: 98542982538
ZOOM-Meeting Passcode: ICRC2021
Corresponding Session: https://icrc2021-venue.desy.de/channel/50-Galactic-Compact-Objects-Pulsars-Binary-Systems-Microquasars-GAD-GAI/124
Live-Stream URL: https://icrc2021-venue.desy.de/livestream/Discussion-04/5

Abstract:
'There are a number of binary systems in our Galaxy, typically consisting of a compact object and a non-degenerate companion star, that produce X-ray and gamma-ray emission. Depending on the energy at which their emission peaks, they are called either X-ray or gamma-ray binaries. Two main scenarios have been proposed to explain the observed radiation, one involving matter accretion and jet launching by the compact object (microquasar scenario), and another one in which the compact object is a pulsar that interacts with the star through their winds (pulsar wind scenario). This contribution will be an overview of the latest results on Galactic binary systems obtained with the MAGIC telescopes at energies above 100 GeV. Among them, we will present results on the X-ray binary MAXI J1820+070, which underwent a very bright X-ray flare in 2018 that aroused the interest of several multi-wavelength facilities. Additionally, we will pay special attention to the gamma-ray binary HESS J0632+057, for which a large data set (combined with VERITAS and H.E.S.S.) covering 15 years of observations allowed for the first time determination of the source gamma-ray flux modulation above 350 GeV. We will put these observations in a multi-wavelength context and discuss their physical implications for the different observed sources.'

Authors: Edgar Molina
Co-Authors: Daniela Hadasch | John Hoang | Alicia López-Oramas | for the MAGIC Collaboration
Collaboration: MAGIC

Indico-ID: 265
Proceeding URL: https://pos.sissa.it/395/786