TY - JOUR
T1 - Beamed Emission from a Neutron-star ULX in a GRRMHD Simulation
AU - Abarca, David
AU - Parfrey, Kyle
AU - Kluźniak, Włodek
N1 - Publisher Copyright:
© 2021. The American Astronomical Society. All rights reserved.
PY - 2021/8/20
Y1 - 2021/8/20
N2 - We perform a global 2.5D general-relativistic radiation magnetohydrodynamic simulation of supercritical accretion onto a neutron star with a 2 1010 G dipolar magnetic field, as a model of a neutron-star-powered ultraluminous X-ray source (ULX). We compute a lower limit on the total luminosity of ∼2.5 L Edd, and find the radiation to be highly beamed by the accretion disk outflows. The apparent isotropic luminosity, which is a function of the viewing angle, reaches a maximum above 100 L Edd, consistent with the luminosities observed in ULXs.
AB - We perform a global 2.5D general-relativistic radiation magnetohydrodynamic simulation of supercritical accretion onto a neutron star with a 2 1010 G dipolar magnetic field, as a model of a neutron-star-powered ultraluminous X-ray source (ULX). We compute a lower limit on the total luminosity of ∼2.5 L Edd, and find the radiation to be highly beamed by the accretion disk outflows. The apparent isotropic luminosity, which is a function of the viewing angle, reaches a maximum above 100 L Edd, consistent with the luminosities observed in ULXs.
UR - https://www.scopus.com/pages/publications/85114462966
UR - https://www.scopus.com/inward/citedby.url?scp=85114462966&partnerID=8YFLogxK
U2 - 10.3847/2041-8213/ac1859
DO - 10.3847/2041-8213/ac1859
M3 - Article
AN - SCOPUS:85114462966
SN - 2041-8205
VL - 917
JO - Astrophysical Journal Letters
JF - Astrophysical Journal Letters
IS - 2
M1 - L31
ER -