0000000000530725

AUTHOR

Satoru Katsuda

showing 3 related works from this author

Modeling the shock-cloud interaction in SN 1006: unveiling the origin of nonthermal X-ray and gamma-ray emission

2016

The supernova remnant SN 1006 is a source of high-energy particles and its southwestern limb is interacting with a dense ambient cloud, thus being a promising region for gamma-ray hadronic emission. We aim at describing the physics and the nonthermal emission associated with the shock-cloud interaction to derive the physical parameters of the cloud (poorly constrained by the data analysis), to ascertain the origin of the observed spatial variations in the spectral properties of the X-ray synchrotron emission, and to predict spectral and morphological features of the resulting gamma-ray emission. We performed 3-D magnetohydrodynamic simulations modeling the evolution of SN 1006 and its inter…

AstrofísicaProper motionMagnetohydrodynamics (MHD)[ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph]Astrophysics::High Energy Astrophysical PhenomenaHadronFOS: Physical sciencesContext (language use)AstrophysicsISM: individual objects: SN 100601 natural sciencesISM: cloudslaw.inventionSettore FIS/05 - Astronomia E AstrofisicalawISM: cloud0103 physical sciencesMagnetohydrodynamic driveSupernova remnant010303 astronomy & astrophysicsISM: supernova remnantAstrophysics::Galaxy Astrophysicsacceleration of particlesISM: supernova remnantsPhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)010308 nuclear & particles physicsclouds; ISM: individual objects: SN 1006; ISM: supernova remnants; Magnetohydrodynamics (MHD); X-rays: ISM; Astronomy and Astrophysics; Space and Planetary Science [Acceleration of particles; ISM]X-rayAstronomy and AstrophysicsAstronomy and AstrophysicAcceleration of particleSynchrotronX-rays: ISMShock (mechanics)Astronomía13. Climate actionSpace and Planetary ScienceAstrophysics - High Energy Astrophysical Phenomena[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
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A Spatially Resolved Study of Hard X-Ray Emission in Kepler’s Supernova Remnant: Indications of Different Regimes of Particle Acceleration

2022

Abstract Synchrotron X-ray emission in young supernova remnants (SNRs) is a powerful diagnostic tool to study the population of high-energy electrons accelerated at the shock front and the acceleration process. We performed a spatially resolved spectral analysis of NuSTAR and XMM-Newton observations of the young Kepler’s SNR, aiming to study in detail its nonthermal emission in hard X-rays. We selected a set of regions all around the rim of the shell and extracted the corresponding spectra. The spectra were analyzed by adopting a model of synchrotron radiation in the loss-limited regime, to constrain the dependence of the cutoff energy of the synchrotron radiation on the shock velocity. We …

Settore FIS/05 - Astronomia E AstrofisicaSpace and Planetary ScienceSupernova remnants (1667)Astronomy and AstrophysicsCosmic ray sources (328)The Astrophysical Journal
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Suzaku Detection of Diffuse Hard X-Ray Emission outside Vela X

2011

著者人数: 12名

PhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)PhotonVela Supernova RemnantAstrophysics::High Energy Astrophysical PhenomenaISM: individual (Vela Pulsar Wind Nebula) ISM: supernova remnants X-rays: ISMFluxFOS: Physical sciencesAstronomy and AstrophysicsElectronAstrophysicsVelaPulsar wind nebulaSpectral linePulsarSpace and Planetary ScienceAstrophysics - High Energy Astrophysical PhenomenaAstrophysics::Galaxy Astrophysics
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