Polarization properties of weakly magnetized Neutron Stars in Low Mass X-ray Binaries
arXiv:2206.00749 · doi:10.1093/mnras/stac1523
Abstract
X-ray polarimetry missions like IXPE will be able to measure for the first time the polarization properties of accreting, weakly magnetized neutron stars in Low Mass X-ray Binaries. In this work we present simulations of the expected X-ray polarized signal including the coronal emission for different geometries of the corona itself, i.e. a slab above the accretion disc and a spherical shell around the neutron star. The simulations are performed with the fully relativistic Monte Carlo code monk capable of computing the X-ray polarization degree and angle for various physical input parameters of the neutron star, disc and corona. Different coronal geometries result in significantly different X-ray polarization properties, which can therefore be used to constrain the geometry of the systems.
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Cited by in corpus (16)
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- X-ray polarimetry and spectroscopy of the neutron star low-mass X-ray binary GX 9+9: an in-depth study with IXPE and NuSTAR
- Highly Significant Detection of X-Ray Polarization from the Brightest Accreting Neutron Star Sco X-1
- Polarization properties of the weakly magnetized neutron star X-ray binary GS 1826-238 in the high soft state
- First detection of X-ray polarization from the accreting neutron star 4U 1820-303
- X-Ray Polarized View on the Accretion Geometry in the X-Ray Binary Circinus X-1
- Discovery of a strong rotation of the X-ray polarization angle in the galactic burster GX 13+1
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- Polarized radiation from the spreading layer of the weakly magnetized neutron stars
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- Fast and accurate analytical formulas for light propagation in general static, spherically symmetric spacetimes
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