Search results for "MAGIC (telescope)"

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Black hole lightning due to particle acceleration at subhorizon scales

2015

Supermassive black holes with masses of millions to billions of solar masses are commonly found in the centers of galaxies. Astronomers seek to image jet formation using radio interferometry, but still suffer from insufficient angular resolution. An alternative method to resolve small structures is to measure the time variability of their emission. Here, we report on gamma-ray observations of the radio galaxy IC 310 obtained with the MAGIC telescopes revealing variability with doubling time scales faster than 4.8 min. Causality constrains the size of the emission region to be smaller than 20\% of the gravitational radius of its central black hole. We suggest that the emission is associated …

Black HolesRadio galaxyAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesAstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsVery High Energy Gamma AstronomyBlack Holes Very High Energy Gamma Astronomy Active Galactic NucleiX-shaped radio galaxysupermassive black hole ; jet formation ; IC 310 ; MAGIC telescopesAstrophysics::Galaxy AstrophysicsPhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)astro-ph.HESupermassive black holeta115MultidisciplinaryPhysicsActive Galactic NucleiAstronomy and AstrophysicsGalaxyIntermediate-mass black holeStellar black holeElectrónicaFísica nuclearddc:500Spin-flipElectricidadAstrophysics - High Energy Astrophysical PhenomenaSchwarzschild radius
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