0000000001321384

AUTHOR

C. Vignali

showing 2 related works from this author

Faint γ-ray sources at low redshift: the radio galaxy IC 1531

2018

We present amultiwavelength study of IC 1531 (z=0.02564), an extragalactic radio source associated with the γ -ray object 3FGL J0009.9-3206 and classified as a blazar of uncertain type in the Third Fermi-Large Area Telescope AGN catalog (3LAC). A core-jet structure, visible in radio and X-rays, is enclosed within a ~220 kpc wide radio structure. The morphology and spectral characteristics of the kiloparsec jet in radio and X-rays are typical of Fanaroff-Riley type I galaxies. The analysis of the radio data and optical spectrum and different diagnostic methods based on the optical, infrared, and γ -ray luminosities also support a classification as a low-power RG seen at moderate angles (θ = …

gamma-rays: galaxiesRadio galaxyInfraredGamma-rays: galaxieAstrophysics::High Energy Astrophysical Phenomenagalaxies: activejets [galaxies]AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsGalaxies: jet01 natural sciencesRadio continuum: galaxielaw.inventionTelescopelaw0103 physical sciencesBlazargalaxies: individual: IC 1531010303 astronomy & astrophysicsAstrophysics::Galaxy AstrophysicsPhysicsradio continuum: galaxies010308 nuclear & particles physicsAstronomy and AstrophysicsAstronomy and Astrophysicgalaxies: jetsGalaxyRedshiftgalaxies [radio continuum]galaxies [gamma-rays]Space and Planetary Scienceactive [galaxies]individual: ic 1531 [galaxies]Spectral energy distributionAstrophysics - High Energy Astrophysical Phenomena[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]Fermi Gamma-ray Space Telescope
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XMM-Newton survey of the ELAIS-S1 field

2008

The formation and evolution of cosmic structures can be probed by studying the evolution of the luminosity function of the Active Galactic Nuclei (AGNs), galaxies and clusters of galaxies and of the clustering of the X-ray active Universe, compared to the IR-UV active Universe. To this purpose, we have surveyed with XMM-Newton the central ~0.6{deg}^2^ region of the ELAIS-S1 field down to flux limits of ~5.5x10^-16^erg/cm^2^/s (0.5-2keV, soft band, S), ~2x10^-15^erg/cm^2^/s (2-10keV, hard band, H), and ~4x10^-15^erg/cm^2^/s (5-10keV, ultra hard band, HH). We present here the analysis of the XMM-Newton observations, the number counts in different energy bands and the clustering properties of …

Active galactic nucleigalactic and extragalactic astronomyAstrophysics and Astronomyhigh energy astrophysicsAstrophysics::High Energy Astrophysical PhenomenaPhysicsAstrophysics::Instrumentation and Methods for AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsSurveysX-ray sourcesCosmologyobservational astronomyX ray sourcesNatural SciencesAstrophysics::Galaxy Astrophysics
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