Pith. sign in

REVIEW 6 cited by

Polarized radiation from the spreading layer of the weakly magnetized neutron stars

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2409.16023 v2 pith:B6H5QX52 submitted 2024-09-24 astro-ph.HE

Anna Bobrikova , Juri Poutanen , Vladislav Loktev This is my paper · ORCID
classification astro-ph.HE
keywords neutronx-rayemissionlayermagnetizedspreadingstarsweakly
verification ladder T0 review T1 audit T2 compute T3 formal

Signed reviews

No signed human review yet.

0 comments
read the original abstract

Observations show that the X-ray emission of the accreting weakly magnetized neutron stars is polarized. Here, we develop a theoretical model, where we assume the emission of the accreting neutron star coming from the spreading layer, the extension of the boundary between the disk and the neutron star surface onto the surface. We then calculate the Stokes parameters of the emission accounting for relativistic aberration and gravitational light bending in the Schwarzschild metric. We show that regardless of the geometry, for the spreading layer, we cannot expect the polarization degree to be higher than 1.5%. Our results have implications with regard to the understanding of the X-ray polarization from weakly magnetized neutron stars observed with the Imaging X-ray Polarimetry Explorer and the future enhanced X-ray Timing and Polarimetry mission.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Peering through the dip: IXPE unveils the extended scattering environment of GX 13+1

    astro-ph.HE 2026-07 conditional novelty 6.0 of 10

    During the periodic dip of GX 13+1, X-ray polarization rises to 9.1%±1.1% and rotates by ~60° relative to the off-dip state, consistent with scattering in an oblate corona or disk wind.

  2. Hadronic lensing

    gr-qc 2026-05 unverdicted novelty 6.0 of 10

    In a pion condensate, photons behave as massive particles and gravitational lensing gains a hadronic correction; the paper derives the modified ray equations and the deflection formula for a pionic-vortex black hole.

  3. X-ray polarization of Z-type neutron star low-mass X-ray binaries -- I. Model-independent, time-resolved X-ray polarimetry

    astro-ph.HE 2025-06 conditional novelty 6.0 of 10

    Z-sources show decreasing X-ray polarization from the horizontal to the normal branch, then an increase in the flaring branch, with state-dependent polarization angle rotations in Sco X-1 and GX 349+2.

  4. X-ray polarization study of the neutron star low-mass X-ray binary GX 349+2

    astro-ph.HE 2025-05 conditional novelty 5.0 of 10

    GX 349+2 shows 2-8 keV X-ray polarization of 1.1 +/- 0.3% at angle 32 +/- 6 degrees; branch-resolved and component-level polarization are mostly unconstrained.

  5. X-ray polarization from accretion disk winds

    astro-ph.HE 2024-11 conditional novelty 5.0 of 10

    Single Thomson scattering in equatorial accretion disk winds can explain the high X-ray polarization degrees observed in X-ray binaries and active galactic nuclei.

  6. First spectropolarimetric observation of the neutron star low-mass X-ray binary GX 3+1

    astro-ph.HE 2024-11 accept novelty 4.0 of 10

    The accreting neutron star GX 3+1 shows no detectable X-ray polarization, with a 99% upper limit of 1.3%, consistent with a low inclination of about 36 degrees.

Pith tools