0000000000313736

AUTHOR

S. Nozaki

showing 6 related works from this author

Sensitivity of the Cherenkov Telescope Array to spectral signatures of hadronic PeVatrons with application to Galactic Supernova Remnants

2023

The local Cosmic Ray (CR) energy spectrum exhibits a spectral softening at energies around 3~PeV. Sources which are capable of accelerating hadrons to such energies are called hadronic PeVatrons. However, hadronic PeVatrons have not yet been firmly identified within the Galaxy. Several source classes, including Galactic Supernova Remnants (SNRs), have been proposed as PeVatron candidates. The potential to search for hadronic PeVatrons with the Cherenkov Telescope Array (CTA) is assessed. The focus is on the usage of very high energy $\gamma$-ray spectral signatures for the identification of PeVatrons. Assuming that SNRs can accelerate CRs up to knee energies, the number of Galactic SNRs whi…

Cherenkov Telescope ArrayGamma rays: generalstatistical [methods]energy spectrumFOS: Physical sciencesVHESettore FIS/05 - Astronomia E Astrofisicacosmic raysMethods: data analysissupernovadata analysis [methods][PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]Cosmic raysInstrumentation and Methods for Astrophysics (astro-ph.IM)Cherenkov Telescope Arra ; alactic Supernova Remnants ; PeVatrons ;Methods: statisticalgalactic PeVatronsHigh Energy Astrophysical Phenomena (astro-ph.HE)emission spectrum) supernovae: general [(stars]Astronomy and AstrophysicssensitivityobservatoryGalactic PeVatronscosmic radiationspectralgalaxyhadron(Stars:) supernovae: generalAstrophysics - High Energy Astrophysical PhenomenaAstrophysics - Instrumentation and Methods for Astrophysics[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]statisticalgeneral [gamma rays]signature
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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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Broadband Multi-wavelength Properties of M87 during the 2017 Event Horizon Telescope Campaign

2021

Full list of authors: EHT MWL Science Working Group; Algaba, J. C.; Anczarski, J.; Asada, K.; Baloković, M.; Chandra, S.; Cui, Y. -Z.; Falcone, A. D.; Giroletti, M.; Goddi, C.; Hada, K.; Haggard, D.; Jorstad, S.; Kaur, A.; Kawashima, T.; Keating, G.; Kim, J. -Y.; Kino, M.; Komossa, S.; Kravchenko, E. V.; Krichbaum, T. P.; Lee, S. -S.; Lu, R. -S.; Lucchini, M.; Markoff, S.; Neilsen, J.; Nowak, M. A.; Park, J.; Principe, G.; Ramakrishnan, V.; Reynolds, M. T.; Sasada, M.; Savchenko, S. S.; Williamson, K. E.; Event Horizon Telescope Collaboration; Akiyama, Kazunori; Alberdi, Antxon; Alef, Walter; Anantua, Richard; Azulay, Rebecca; Baczko, Anne-Kathrin; Ball, David; Barrett, John; Bintley, Dan; …

Accretion010504 meteorology & atmospheric sciencesAstronomyFluxAstrophysics7. Clean energy01 natural sciencesActive galactic nuclei; Radio cores; Low-luminosity active galactic nuclei; High energy astrophysics; Astrophysical black holes; Accretion; Astrophysics - High Energy Astrophysical Phenomena; Astrophysics - Cosmology and Nongalactic Astrophysics; Astrophysics - Astrophysics of Galaxies010303 astronomy & astrophysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)Physicsastro-ph.HERadio coreAccretion (meteorology)PhysicsAstrophysical black holes520 Astronomie und zugeordnete WissenschaftenActive galactic nuclei ; Radio cores ; Low-luminosity ; active galactic nuclei ; High energy astrophysics ; Astrophysical black holes ; AccretionAstrophysical black holeLow-luminosity active galactic nucleiastro-ph.COAstrophysics - High Energy Astrophysical PhenomenaAccretion; Active galactic nuclei; Astrophysical black holes; High energy astrophysics; Low-luminosity active galactic nuclei; Radio coresHigh energy astrophysicsRadio coresAstrophysics - Cosmology and Nongalactic AstrophysicsCosmology and Nongalactic Astrophysics (astro-ph.CO)Active galactic nucleusHigh-energy astronomyastro-ph.GAAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesF500Astrophysics::Cosmology and Extragalactic AstrophysicsHigh energy astrophysic0103 physical sciencesVery-long-baseline interferometryddc:530Astrophysics::Galaxy Astrophysics0105 earth and related environmental sciencesEvent Horizon TelescopeSupermassive black holeActive galactic nucleiAstronomy and Astrophysics530 PhysikAstrophysics - Astrophysics of GalaxiesGalaxySpace and Planetary ScienceAstrophysics of Galaxies (astro-ph.GA)ddc:520Active galactic nuclei; Radio cores; Low-luminosity active galactic nuclei; High energy astrophysics; Astrophysical black holes; AccretionHESS - Abteilung Hinton[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
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Search for anisotropic gravitational-wave backgrounds using data from Advanced LIGO and Advanced Virgo's first three observing runs

2021

We report results from searches for anisotropic stochastic gravitational-wave backgrounds using data from the first three observing runs of the Advanced LIGO and Advanced Virgo detectors. For the first time, we include Virgo data in our analysis and run our search with a new efficient pipeline called {\tt PyStoch} on data folded over one sidereal day. We use gravitational-wave radiometry (broadband and narrow band) to produce sky maps of stochastic gravitational-wave backgrounds and to search for gravitational waves from point sources. A spherical harmonic decomposition method is employed to look for gravitational-wave emission from spatially-extended sources. Neither technique found eviden…

gravitational radiation: anisotropyPhysics and Astronomy (miscellaneous)gravitational radiation: stochasticAstronomyAstrophysics01 natural sciencesGeneral Relativity and Quantum CosmologyPhysics Particles & FieldsCosmology & Astrophysicsenergy: fluxenergy: densitygravitational radiation: energyLIGOQCQBPhysicsSettore FIS/01Spectral indexPhysicsGalactic CenterAmplitudeGeneral relativitySidereal timePhysical Sciences[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]gravitational radiation: power spectrumGravitationdata analysis methodAnisotropic stochastic gravitational-wave backgroundExperimental studies of gravityFOS: Physical sciencesO3O2General Relativity and Quantum Cosmology (gr-qc)Astronomy & AstrophysicsStochastic Background Gravitational Waves LIGO Virgo O1 O2 O3O1Gravitational wavesGeneral Relativity and Quantum CosmologyUPPER LIMITSstatistical analysis0103 physical sciencesadvanced LIGO and Virgoddc:530KAGRAKAGRACosmology & Astrophysics010306 general physicsSTFCgravitational waves; LIGO; VirgoGravitational WavesScience & Technology010308 nuclear & particles physicsGravitational waveVirgogravitational radiation: backgroundRCUKGalaxyLIGOVIRGOgravitational radiation: emissionspectrum: densityRADIATIONCROSS-CORRELATION SEARCHStochastic BackgroundDewey Decimal Classification::500 | Naturwissenschaften::530 | PhysikgalaxyExperimental studies of gravity; General relativity; Gravitational waves
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Sensitivity of the Cherenkov Telescope Array to a dark matter signal from the Galactic centre

2021

Full list of authors: Acharyya, A.; Adam, R.; Adams, C.; Agudo, I.; Aguirre-Santaella, A.; Alfaro, R.; Alfaro, J.; Alispach, C.; Aloisio, R.; Alves Batista, R.; Amati, L.; Ambrosi, G.; Angüner, E. O.; Antonelli, L. A.; Aramo, C.; Araudo, A.; Armstrong, T.; Arqueros, F.; Asano, K.; Ascasíbar, Y. Ashley, M.; Balazs, C.; Ballester, O.; Baquero Larriva, A.; Barbosa Martins, V.; Barkov, M.; Barres de Almeida, U.; Barrio, J. A.; Bastieri, D.; Becerra, J.; Beck, G.; Becker Tjus, J.; Benbow, W.; Benito, M.; Berge, D.; Bernardini, E.; Bernlöhr, K.; Berti, A.; Bertucci, B.; Beshley, V.; Biasuzzi, B.; Biland, A.; Bissaldi, E.; Biteau, J.; Blanch, O.; Blazek, J.; Bocchino, F.; Boisson, C.; Bonneau Arbe…

Cherenkov Telescope ArrayMATÉRIA ESCURAscale: TeVAstronomyatmosphere [Cherenkov counter]dark matter experimentDark matter theoryenergy resolutionGamma ray experimentsParticleAstrophysicscosmic background radiation01 natural sciences7. Clean energyHigh Energy Physics - Phenomenology (hep-ph)benchmarkWIMPHESSenergy: fluxTeV [scale]relativistic [charged particle]gamma ray experimentMAGIC (telescope)Monte CarloEvent reconstructionPhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)Contractionspatial distributiontrack data analysisPhysicsdensity [dark matter]ClumpyAstrophysics::Instrumentation and Methods for AstrophysicsimagingHigh Energy Physics - Phenomenologydark matter experiments; dark matter theory; gamma ray experiments; galaxy morphologyDark matter experimentsFísica nuclearVERITASAstrophysics - High Energy Astrophysical PhenomenaSimulationsnoiseWIMPAstrophysics::High Energy Astrophysical PhenomenaDark mattersatelliteCosmic background radiationFOS: Physical sciencesAnnihilationdark matter: densityAstrophysics::Cosmology and Extragalactic AstrophysicsCherenkov counter: atmosphereheavy [dark matter]530annihilation [dark matter]GLASTDark matter experiments; Dark matter theory; Galaxy morphology; Gamma ray experimentscosmic radiation [p]0103 physical sciencesCherenkov [radiation]Candidatesddc:530AGNCherenkov radiationRadiative Processesthermal [cross section]010308 nuclear & particles physicsFísicadark matter: annihilationGamma-Ray SignalsCherenkov Telescope Array ; dark matter ; Galactic Center ; TeV gamma-ray astronomyAstronomy and AstrophysicsMassCherenkov Telescope Arrayradiation: CherenkovsensitivityMAGICGalaxyAstronomíadark matter: heavygamma rayp: cosmic radiation[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]correlationcharged particle: relativisticflux [energy]Galaxy morphology/dk/atira/pure/subjectarea/asjc/3100/3103galaxysupersymmetry[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]cross section: thermal
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Search for Gravitational Waves Associated with Gamma-Ray Bursts Detected by Fermi and Swift during the LIGO-Virgo Run O3a

2022

Abbott, R., et al. (LIGO and VIRGO Collaboration)

neutron star: binaryGravitational waves(678)ELECTROMAGNETIC COUNTERPARTSBinary numberAstrophysics01 natural sciencesLIGOHigh-Energy Phenomena and Fundamental PhysicsQCSUPERNOVAQBHigh Energy Astrophysical Phenomena (astro-ph.HE)Settore FIS/01education.field_of_study[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph]Black holesSettore FIS/0506 humanities and the artsGRBEnergy InjectionSearch for gravitational wave transients associated to GRBs - Fermi and Swift satellitesAFTERGLOWPhysical SciencesRELATIVISTIC JETSAstrophysics - High Energy Astrophysical PhenomenaSwiftGravitational waveBlack-Hole330Evolutiongr-qcGamma Ray Burst LIGO Virgo Gravitational WavesAstrophysics::High Energy Astrophysical PhenomenaGeneral Relativity and Quantum Cosmology (gr-qc)0603 philosophy ethics and religionGravitational-wave astronomyNeutron starsENERGY INJECTIONCORE-COLLAPSEeducationGamma-ray burstScience & TechnologyCore-CollapseVirgoRCUKAstronomy and AstrophysicstriggerLuminosity FunctionDewey Decimal Classification::500 | Naturwissenschaften::520 | Astronomie KartographieGamma Ray BurstSpace and Planetary ScienceBLACK-HOLEddc:520gravitational wave astronomyGravitational wave astronomyGamma-ray burst[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]LIGO(920)Fermi Gamma-ray Space TelescopeAstronomyAstrophysicsGeneral Relativity and Quantum Cosmologyneutron starsENERGYGravitational wave detectorsGamma-ray bursts(629)Neutron Stars Mergers Gravitational Waves010303 astronomy & astrophysicsgravitational waves; gamma ray bursts; LIGO; Virgo; Fermi; SwiftCompact binary stars(283)astro-ph.HEPhysicscompact binary starsgamma-ray burstsgamma-ray bursts ; gravitational waves; LIGO; Virgogravitational waves060302 philosophy[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]PRECURSOR ACTIVITYGravitational wave astronomy(675)Gamma-ray burstsGW_HIGHLIGHT[PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]PopulationCompact binary starssatelliteFOS: Physical sciencesAstrophysics::Cosmology and Extragalactic AstrophysicsAstronomy & Astrophysicsgamma ray: burstMASS1STGLASTGamma-ray bursts; Gravitational wave astronomy; Gravitational waves; Gravitational wave detectors0103 physical sciencesSTFCFermigravitational waves; gamma-ray bursts; LIGO; Virgo; Fermi; SwiftGravitational wavegravitational radiationgamma ray burstsgamma-ray burts--black holesLIGOEVOLUTIONOBSERVING RUNNeutron stars(1108)Neutron starPhysics and Astronomy[SDU]Sciences of the Universe [physics]LUMINOSITY FUNCTIONBlack holes(162)INJECTIONEMISSION
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