Shigeo S. Kimura

Neutrino and Cosmic-Ray Emission and Cumulative Background from Radiatively Inefficient Accretion Flows in Low-luminosity Active Galactic Nuclei

We study high-energy neutrino and cosmic-ray (CR) emission from the cores of low-luminosity active galactic nuclei (LLAGN). In LLAGN, the thermalization of particles is expected to be incomplete in radiatively inefficient accretion flows (RIAFs), allowing the existence of non-thermal particles. In this work, assuming stochastic particle acceleration due to turbulence in RIAFs, we solve the Fokker-Planck equation and calculate spectra of escaping neutrinos and CRs. The RIAF in LLAGN can emit CR protons with

Hadronic origin of multi-TeV gamma rays and neutrinos from low-luminosity active galactic nuclei: Implications of past activities of the Galactic center

\gtrsim10

EFFECTS OF HIGH-ENERGY PARTICLES ON ACCRETION FLOWS ONTO A SUPERMASSIVE BLACK HOLE

PeV energies and TeV-PeV neutrinos generated via

From birth to death of protoplanetary discs: modelling their formation, evolution and dispersal

pp

The role of the inner disk in mass accretion to the star in the early phase of star formation

and/or

Conditions of Gravitational Instability in Protoplanetary Disks

p\gamma

Stochastic Particle Acceleration in Turbulence Generated by Magnetorotational Instability

reactions. We find that, if

Effect of lift force on the aerodynamics of dust grains in the protoplanetary disk

\sim1

Diffuse gamma-ray emission from the Galactic center and implications of its past activities

\% of the accretion luminosity is carried away by non-thermal ions, the diffuse neutrino intensity from the cores of LLAGN may be as high as

Preparation of Some 1,4-Diphospha-1,3-Butadienes by Oxidative Coupling Reaction

E_\nu^2\Phi_\nu\sim3\times{10}^{-8} {\rm GeV} {\rm cm}^{-2} {\rm s}^{-1}{\rm sr}^{-1}