Study of the X-ray Pulsar IGR J21343+4738 based on NuSTAR, Swift, and SRG data

We present the results of our study of the X-ray pulsar IGR J21343+4738 based on NuSTAR, Swift, and SRG observations in the wide energy range 0.3 - 79 keV. The absence of absorption features in the energy spectra of the source, both averaged and phase-resolved ones, has allowed us to estimate the up...

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Bibliographic Details
Published in:arXiv.org 2023-03
Main Authors: Gorban, A S, Molkov, S V, Lutovinov, A A, Semena, A N
Format: Article
Language:English
Subjects:
Binary stars
Energy spectra
Luminosity
Neutron stars
Orbits
Pulsars
X-rays
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Summary:We present the results of our study of the X-ray pulsar IGR J21343+4738 based on NuSTAR, Swift, and SRG observations in the wide energy range 0.3 - 79 keV. The absence of absorption features in the energy spectra of the source, both averaged and phase-resolved ones, has allowed us to estimate the upper and lower limits on the magnetic field of the neutron star in the binary system, \(B3.4 \times 10^{12}\)G, respectively. The spectral and timing analyses have shown that IGR J21343+4738 has all properties of a quasi-persistent X-ray pulsar with a pulsation period of \(322.71\pm{0.04}\)s and a luminosity \(L_{x} \simeq3.3\) \(\times10^{35}\)erg s\(^{-1}\). The analysis of the long-term variability of the object in X-rays has confirmed the possible orbital period of the binary system \(\sim 34.3\) days previously detected in the optical range.
ISSN:2331-8422
DOI:10.48550/arxiv.2303.16645