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, B<2.5×1011G and B>3.4×1012G, 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±0.04s and a luminosity Lx≃3.3×1035erg 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 ∼34.3 days previously detected in the optical range.
@article{arxiv.2303.16645,
title = {Study of the X-ray Pulsar IGR J21343+4738 based on NuSTAR, Swift, and SRG data},
author = {A. S. Gorban and S. V. Molkov and A. A. Lutovinov and A. N. Semena},
journal= {arXiv preprint arXiv:2303.16645},
year = {2023}
}