Approximate analytic model of the boundary layer around a low magnetic field neutron star at the disk accretion

TL;DR

This paper develops an approximate analytic one-dimensional model of the boundary layer around a low magnetic field neutron star during disk accretion, emphasizing high luminosity conditions with radiation pressure dominance.

Contribution

It introduces a novel simplified analytic model for the boundary layer in low magnetic field neutron star accretion disks, focusing on high luminosity scenarios.

Findings

Model captures the boundary layer structure under radiation pressure dominance

Provides insights into accretion physics around low magnetic field neutron stars

Facilitates comparison with observational data of neutron star accretion disks

Abstract

An approximate analytic one-dimensional model is constructed, for the accretion disk boundary layer surrounding a neutron star whose low magnetic field does not affect the process of accretion. A high luminosity model is considered, with radiation pressure dominant in the interior part of the disk.