0000000000189859

AUTHOR

W. Mcconville

showing 3 related works from this author

The unusual multiwavelength properties of the gamma-ray source PMN J1603-4904

2013

We investigate the nature and classification of PMNJ1603-4904, a bright radio source close to the Galactic plane, which is associated with one of the brightest hard-spectrum gamma-ray sources detected by Fermi/LAT. It has previously been classified as a low-peaked BL Lac object based on its broadband emission and the absence of optical emission lines. Optical measurements, however, suffer strongly from extinction and the absence of pronounced short-time gamma-ray variability over years of monitoring is unusual for a blazar. We are combining new and archival multiwavelength data in order to reconsider the classification and nature of this unusual gamma-ray source. For the first time, we stud…

High Energy Astrophysical Phenomena (astro-ph.HE)PhysicsAstrofísicaActive galactic nucleusRadio galaxyAstrophysics::High Energy Astrophysical PhenomenaExtinction (astronomy)FOS: Physical sciencesAstronomy and AstrophysicsAstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsGalactic planeAstrophysics - Astrophysics of GalaxiesSpace and Planetary ScienceAstrophysics of Galaxies (astro-ph.GA)Very-long-baseline interferometryAstronomiaSpectral energy distributionAstrophysics - High Energy Astrophysical PhenomenaBlazarAstrophysics::Galaxy AstrophysicsFermi Gamma-ray Space Telescope
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γ-RAY AND PARSEC-SCALE JET PROPERTIES OF A COMPLETE SAMPLE OF BLAZARS FROM THE MOJAVE PROGRAM

2011

著者人数: 145名

[PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]Cosmology and Nongalactic Astrophysics (astro-ph.CO)Astrophysics::High Energy Astrophysical Phenomenagalaxies: activePopulationFOS: Physical sciencesAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics01 natural sciencesRadio spectrumLuminosityRelativistic beamingquasars: generalgamma rays: galaxiesgalaxies0103 physical sciencesgalaxie [gamma rays]educationBlazar010303 astronomy & astrophysicsAstrophysics::Galaxy AstrophysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)radio continuum: galaxiesPhysicseducation.field_of_studygeneral [quasars]general [BL Lacertae objects]010308 nuclear & particles physics[SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]Astronomy and AstrophysicsQuasarBL Lacertae objects: generalgalaxies: jetsgalaxies [radio continuum]BL Lacertae objects: general; galaxies: active; galaxies: jets; gamma rays: galaxies; quasars: general; galaxies quasars: generaljet [galaxies]BL Lacertae objects: general; galaxies: active; galaxies: jets; gamma rays: galaxies; quasars: general; radio continuum: galaxiesSpace and Planetary Scienceactive [galaxies]Spectral energy distributionAstrophysics - High Energy Astrophysical PhenomenaAstrophysics - Cosmology and Nongalactic AstrophysicsFermi Gamma-ray Space TelescopeThe Astrophysical Journal
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15GHz and jet properties of MOJAVE blazars

2013

We investigate the Fermi Large Area Telescope {gamma}-ray and 15GHz Very Long Baseline Array radio properties of a joint {gamma}-ray and radio-selected sample of active galactic nuclei (AGNs) obtained during the first 11 months of the Fermi mission (2008 August 4-2009 July 5). Our sample contains the brightest 173 AGNs in these bands above declination -30{deg} during this period, and thus probes the full range of {gamma}-ray loudness ({gamma}-ray to radio band luminosity ratio) in the bright blazar population. The latter quantity spans at least 4 orders of magnitude, reflecting a wide range of spectral energy distribution (SED) parameters in the bright blazar population. The BL Lac objects,…

interstellar mediumActive galactic nucleigalactic and extragalactic astronomyAstrophysics and AstronomyGamma-ray astronomyhigh energy astrophysicsAstrophysics::High Energy Astrophysical PhenomenaPhysicsAstrophysics::Cosmology and Extragalactic AstrophysicsSurveysstellar astronomyCosmologyobservational astronomyRadio continuum emissionGamma ray astronomyBL Lacertae objectsRadio astronomyNatural SciencesQuasarsAstrophysics::Galaxy Astrophysics
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