Search results for "Radio continuum : galaxies"

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VLBI detection of the HST-1 feature in the M87 jet at 2 cm

2010

A bright feature 80 pc away from the core in the powerful jet of M87 shows highly unusual properties. Earlier radio, optical and X-ray observations have shown that this feature, labeled HST-1, is superluminal, and is possibly connected with the TeV flare detected by HESS in 2005. It has been claimed that this feature might have a blazar nature, due to these properties. To examine the possible blazar-like nature of HST-1, we analyzed lambda 2 cm VLBA archival data from dedicated full-track observations and the 2 cm survey/MOJAVE VLBI monitoring programs obtained between 2000 and 2009. Applying VLBI wide-field imaging techniques, the HST-1 region was imaged at milliarcsecond resolution. Here …

Active galactic nucleusCosmology and Nongalactic Astrophysics (astro-ph.CO)active [Galaxies]010504 meteorology & atmospheric sciencesRadio galaxyFluxFOS: Physical sciencesgalaxies [Radio continuum]Astrophysics01 natural scienceslaw.inventionlaw0103 physical sciencesVery-long-baseline interferometryUNESCO::ASTRONOMÍA Y ASTROFÍSICA::Otras especialidades astronómicasBlazar010303 astronomy & astrophysicsUNESCO::ASTRONOMÍA Y ASTROFÍSICA::Cosmología y cosmogonia::Galaxias0105 earth and related environmental sciencesPhysicsSuperluminal motionAstronomy and Astrophysics:ASTRONOMÍA Y ASTROFÍSICA::Cosmología y cosmogonia::Galaxias [UNESCO]Radio continuum : galaxies; Techniques : high angular resolution; Techniques : interferometric; Galaxies : active; Galaxies : jetshigh angular resolution [Techniques]InterferometrySpace and Planetary Scienceinterferometric [Techniques]jets [Galaxies]:ASTRONOMÍA Y ASTROFÍSICA::Otras especialidades astronómicas [UNESCO]FlareAstrophysics - Cosmology and Nongalactic Astrophysics
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