0000000001089610

AUTHOR

Paola Grandi

0000-0003-1848-6013

showing 4 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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Sensitivity of the Cherenkov Telescope Array for probing cosmology and fundamental physics with gamma-ray propagation

2021

Full list of authors: Abdalla, H.; Abe, H.; Acero, F.; Acharyya, A.; Adam, R.; Agudo, I; Aguirre-Santaella, A.; Alfaro, R.; Alfaro, J.; Alispach, C.; Aloisio, R.; Batista, R. Alves; Amati, L.; Amato, E.; Ambrosi, G.; Anguner, E. O.; Araudo, A.; Armstrong, T.; Arqueros, F.; Arrabito, L.; Asano, K.; Ascasibar, Y.; Ashley, M.; Backes, M.; Balazs, C.; Balbo, M.; Balmaverde, B.; Baquero Larriva, A.; Martins, V. Barbosa; Barkov, M.; Baroncelli, L.; de Almeida, U. Barres; Barrio, J. A.; Batista, P-, I; Becerra Gonzalez, J.; Becherini, Y.; Beck, G.; Tjus, J. Becker; Belmont, R.; Benbow, W.; Bernardini, E.; Berti, A.; Berton, M.; Bertucci, B.; Beshley, V; Bi, B.; Biasuzzi, B.; Biland, A.; Bissaldi, …

Gamma ray AstronomyCherenkov Telescope ArrayaxionsMATÉRIA ESCURAredshift: dependenceAstronomyGamma ray experimentsgamma ray experimentsAstrophysics01 natural sciencesCosmologyObservatorycosmological model: parameter spacegamma ray experimentHigh Energy Astrophysical Phenomena (astro-ph.HE)astro-ph.HEPhysicsCherenkov telescopes ; IACT technique ; Gamma rays ; Cosmic raysnew physics4. EducationSettore FIS/01 - Fisica SperimentaleAstrophysics::Instrumentation and Methods for AstrophysicsGamma-ray astronomyviolation: Lorentz3. Good healthobservatoryExtragalactic background lightastro-ph.COaxion-like particlesFísica nuclearAstrophysics - High Energy Astrophysical PhenomenaAstrophysics - Cosmology and Nongalactic Astrophysicsgamma ray: propagationCosmology and Nongalactic Astrophysics (astro-ph.CO)Active galactic nucleusAxionsAstrophysics::High Energy Astrophysical PhenomenaDark matterFOS: Physical sciencesAstrophysics::Cosmology and Extragalactic Astrophysicsinvariance: Lorentzjet: relativisticdark matter: halo0103 physical sciencesactive galactic nuclei; gamma ray experiments; axions; extragalactic magnetic fieldsAGNBlazarbackground010308 nuclear & particles physicsFísicaAstronomy and AstrophysicssensitivityCherenkov Telescope Arrayaxionextragalactic magnetic fieldsactive galactic nuclei[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]absorptionstatisticalBlazarsTelescopes
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Observatory science with eXTP

2019

Disponible preprint en: arXiv:1812.04023v1 [astro-ph.HE] [v1] Mon, 10 Dec 2018 19:00:52 UTC (4,376 KB)

cataclysmic binariesAstronomyFIELD CAMERAS OBSERVATIONSspace research instruments nuclear astrophysics flare stars accretion and accretion disks mass loss and stellar winds cataclysmic binaries X-ray binaries supernova remnants active galactic nuclei X-ray bursts gamma-ray bursts gravitational wavesGeneral Physics and Astronomygamma-ray burstspace research instrument01 natural sciencesGamma ray burstsObservatoryAccretion and accretion disksAstrophysics::Solar and Stellar Astrophysics010303 astronomy & astrophysicsgravitational waveaccretion and accretion diskPhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)supernova remnants[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph][SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]flare starsgamma-ray burstsAstrophysics::Instrumentation and Methods for Astrophysicsaccretion and accretion disks; active galactic nuclei; cataclysmic binaries; flare stars; gamma-ray bursts; gravitational waves; mass loss and stellar winds; nuclear astrophysics; space research instruments; supernova remnants; X-ray binaries; X-ray bursts; Physics and Astronomy (all)Space research instrumentsX ray burstSupernovaX-ray binariesgravitational wavesaccretion and accretion disksQUIETHigh massX-ray binarieMass loss and stellar windsNuclear astrophysicsGamma-ray burstsspace research instrumentsAstrophysics - High Energy Astrophysical PhenomenaPULSAR-WIND NEBULAEFAST RADIO-BURSTSAstrofísica nuclearActive galactic nucleusTIDAL DISRUPTIONSupernova remnantsAstrophysics::High Energy Astrophysical Phenomenanuclear astrophysicsPolarimetryFOS: Physical sciencesAstrophysics::Cosmology and Extragalactic AstrophysicsACCRETING NEUTRON-STARSaccretion and accretion disks; active galactic nuclei; cataclysmic binaries; flare stars; gamma-ray bursts; gravitational waves; mass loss and stellar winds; nuclear astrophysics; space research instruments; supernova remnants; X-ray binaries; X-ray burstsGravitational wavesPhysics and Astronomy (all)cataclysmic binarieSettore FIS/05 - Astronomia e AstrofisicaSUPERMASSIVE BLACK-HOLES0103 physical sciences010306 general physicsX-ray burstAstrophysics::Galaxy AstrophysicsCataclysmic binariesActive galactic nucleiflare starAstronomyWhite dwarfFlare starsStarssupernova remnantQB460-466 Astrophysics[SDU]Sciences of the Universe [physics]mass loss and stellar wind:Física::Astronomia i astrofísica [Àrees temàtiques de la UPC]active galactic nucleiX-RAYX-ray burstsSupernova remmantsmass loss and stellar windsX ray binaries[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]SEYFERT 1 GALAXYnuclear astrophysic
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Jet collimation in NGC 315 and other nearby AGN

2020

Aims. The collimation of relativistic jets in galaxies is a poorly understood process. Detailed radio studies of the jet collimation region have been performed so far in few individual objects, providing important constraints for jet formation models. However, the extent of the collimation zone as well as the nature of the external medium possibly confining the jet are still debated. Methods. In this article we present a multi-frequency and multi-scale analysis of the radio galaxy NGC 315, including the use of mm-VLBI data up to 86 GHz, aimed at revealing the evolution of the jet collimation profile. We then consider results from the literature to compare the jet expansion profile in a samp…

Radio galaxyAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesAstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsGalaxies: jet01 natural sciencesGalaxies: individual: NGC 315Astrophysical jet0103 physical sciencesThick disk010303 astronomy & astrophysicsAstrophysics::Galaxy AstrophysicsPhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)Jet (fluid)010308 nuclear & particles physicsAstronomy and AstrophysicsRadiusGalaxies: ActiveGalaxyAccretion (astrophysics)Space and Planetary ScienceInstrumentation: high angular resolutionHigh Energy Physics::ExperimentAstrophysics - High Energy Astrophysical PhenomenaSchwarzschild radius
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