SIMBAD references

2025MNRAS.539.3437C - Mon. Not. R. Astron. Soc., 539, 3437-3444 (2025/June-1)

Broad-band study of the SMC pulsar RX J0032.9-7348 during its X-ray brightening in 2024.

CHHOTARAY B., JAISAWAL G.K., NAIK S. and JANA A.

Abstract (from CDS):

We present the results of the broadband timing and spectral analysis of the poorly understood SMC pulsar RX J0032.9-7348 (=SXP 7.02) using NuSTAR and NICER observations during its X-ray brightening in 2024. Our timing analysis revealed a pulsation period of approximately 7.02 s in the X-ray light curve. The pulse profile obtained in the broad energy range is double-peaked and asymmetric in nature and shows moderate variation with the energy. An absorbed power-law model describes the 0.5-8 keV NICER spectra well. The 3-50 keV NuSTAR spectrum is best described with an absorbed power-law modified with a high-energy cutoff model. We find no evidence of iron or cyclotron line features in the energy spectrum. During our observation period, the 0.5-50 keV luminosity varies in the range of $\sim 8\times 10^{36}\!-\!\times 10^{37}$ erg s$^{-1}$. We also discuss the dependence of spectral parameters on the rotational phase of the pulsar through phase-resolved spectroscopy.

Abstract Copyright: © 2025 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): pulsars: individual: RX J0032.9-7348 - X-rays: binaries

Simbad objects: 10

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