6533b871fe1ef96bd12d1c08
RESEARCH PRODUCT
High-energy γ-ray detection of supernova remnants in the Large Magellanic Cloud
R CampanaE MassaroF BocchinoM MiceliS OrlandoA Tramaceresubject
High Energy Astrophysical Phenomena (astro-ph.HE)gamma-rays: galaxiesAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesAstronomy and AstrophysicsAstrophysics::Cosmology and Extragalactic Astrophysicsgamma-rays: generalAstrophysics - Astrophysics of GalaxiesSettore FIS/05 - Astronomia E AstrofisicaSpace and Planetary ScienceAstrophysics of Galaxies (astro-ph.GA)Magellanic CloudsAstrophysics - High Energy Astrophysical PhenomenaAstrophysics::Galaxy AstrophysicsISM: supernova remnantsdescription
We present the results of a cluster search in the gamma-ray sky images of the Large Magellanic Cloud (LMC) region by means of the Minimum Spanning Tree (MST) and DBSCAN algorithms, at energies higher than 6 and 10 GeV, using 12 years of Fermi-LAT data. Several significant clusters were found, the majority of which associated with previously known gamma-ray sources. We confirm our previous detection of the Supernova Remnants N 49B and N 63A and found new significant clusters associated with the SNRs N 49, N 186D and N 44. These sources are among the brightest X-ray remnants in the LMC and corresponds to core-collapse supernovae interacting with dense HII regions, indicating that an hadronic origin of high energy photons is the most likely process.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2022-07-06 | Monthly Notices of the Royal Astronomical Society |