0000000001169913

AUTHOR

H.-m. Cao

showing 1 related works from this author

Apparent superluminal core expansion and limb brightening in the candidate neutrino blazar TXS 0506+056

2019

IceCube has reported a very-high-energy neutrino (IceCube-170922A) in a region containing the blazar TXS 0506+056. Correlated {\gamma}-ray activity has led to the first high-probability association of a high-energy neutrino with an extragalactic source. This blazar has been found to be in a radio outburst during the neutrino event. We have performed target-of-opportunity VLBI imaging observations at 43 GHz frequency with the VLBA two and eight months, respectively, after the neutrino event. We produced two images of TXS 0506+056 with angular resolutions of (0.2x1.1) mas and (0.2x0.5) mas, respectively. The source shows a compact, high brightness temperature core (albeit not approaching the …

High Energy Astrophysical Phenomena (astro-ph.HE)PhysicsJet (fluid)Superluminal motion010308 nuclear & particles physicsAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesAstronomy and AstrophysicsAstrophysicsAstrophysics::Cosmology and Extragalactic Astrophysics01 natural sciencesAstrophysics - Astrophysics of GalaxiesGalaxyNeutrino detectorSpace and Planetary ScienceAstrophysics of Galaxies (astro-ph.GA)0103 physical sciencesVery-long-baseline interferometryNeutrinoBlazarAstrophysics - High Energy Astrophysical Phenomena010303 astronomy & astrophysicsVery Long Baseline Array
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