activity
20202026
most citedPulsed fraction of super-critical column accretion flows onto neutron stars: modeling of ultraluminous X-ray pulsars

16 citations · 37 across the 7 of their papers we have counts for

collaborators

7 papers

astro-ph.HE2026

A Diagnostic Method for Proto-Neutron Star Magnetic Fields by Supernova Fallback Neutrinos

Akihiro Inoue, Yudai Suwa, Ryuichiro Akaho +3

Young isolated neutron stars exhibit a wide range of magnetic field strengths. To understand the origin of this diversity, it is important to observationally constrain magnetic fie…

astro-ph.HE2026

Radiative Efficiency Enhancement by Electromagnetic Energy Dissipation in Strongly Magnetized Supercritical Accretion Flows around Kerr Black Holes

Hiroyuki R. Takahashi, Ken Ohsuga, Ryohei Kobayashi +4

We investigate how black hole spin and the amount of magnetic flux affect electromagnetic energy dissipation and radiation transport in supercritical accretion flows. For this purp…

astro-ph.HE2025

A Necessary Condition for the Submergence of Proto-Neutron Star Magnetic Fields by Supernova Fallback

Akihiro Inoue, Shinsuke Takasao, Kazumi Kashiyama +2

Central compact objects (CCOs) are a subclass of neutron stars with a dipole magnetic field strength considerably weaker than those of radio pulsars and magnetars. One possible exp…

astro-ph.HE2024★ 7 cited

GR-RMHD Simulations of Super-Eddington Accretion Flows onto a Neutron Star with Dipole and Quadrupole Magnetic Fields

Akihiro Inoue, Ken Ohsuga, Hiroyuki R. Takahashi +2

Although ultraluminous X-ray pulsars (ULXPs) are believed to be powered by super-Eddington accretion onto a magnetized neutron star (NS), the detailed structures of the inflow-outf…

astro-ph.HE2023

Decomposing the Spectrum of Ultra-Luminous X-ray Pulsar NGC 300 ULX-1

Shogo B. Kobayashi, Hirofumi Noda, Teruaki Enoto +3

A phase-resolved analysis on the X-ray spectrum of Ultra-Luminous X-ray Pulsar (ULXP) NGC 300 ULX-1 is performed with data taken with XMM-Newton and NuSTAR on 2016 December 16th. I…

astro-ph.HE2023★ 14 cited

Modeling of Thermal Emission from ULX Pulsar Swift J0243.6+6124 with General Relativistic Radiation MHD simulations

Akihiro Inoue, Ken Ohsuga, Hiroyuki R. Takahashi +1

We perform general relativistic radiation magnetohydrodynamics (MHD) simulations of super-Eddington accretion flows around a neutron star with a dipole magnetic field for modeling…

astro-ph.HE2020★ 16 cited

Pulsed fraction of super-critical column accretion flows onto neutron stars: modeling of ultraluminous X-ray pulsars

Akihiro Inoue, Ken Ohsuga, Tomohisa Kawashima

We calculate the pulsed fraction (PF) of the super-critical column accretion flows onto magnetized neutron stars (NSs), of which the magnetic axis is misaligned with the rotation a…