Spectral and timing properties of the recently discovered Be/X-ray pulsar eRASSUJ 052914.9-662446

被引：0

作者：

Rai, Binay ^{[1
]}

Ghising, Manoj ^{[1
]}

Tobrej, Mohammed ^{[1
]}

Tamang, Ruchi ^{[1
]}

Paul, Bikash Chandra ^{[1
]}

机构：

[1] North Bengal Univ, Dept Phys, Darjeeling 734013, WB, India

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2022年 / 517卷 / 03期

关键词：

stars: neutron; pulsars: individual: eRASSU J052914.9-662446; X-rays: stars; ACCRETION LUMINOSITY; SUPERNOVA REMNANT; NEUTRON-STARS; EMISSION; PERIOD; SEARCHES; CATALOG; NUSTAR; BINARY;

D O I：

10.1093/mnras/stac2776

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have presented NuSTAR and Swift observations of the newly discovered Be/X-ray pulsar eRASSU J052914.9-662446. This is the first detailed study of the temporal and spectral properties of the pulsar using 2020 observations. A coherent pulsation of 1411.5 +/- 0.5 s was detected from the source. The pulse profile was found to resemble a simple single-peaked feature that may be due to emission from the surface of the neutron star only. Pulse profiles are highly energy dependent. The variation of the pulse fraction of the pulse profiles is found to be non-monotonic with energy. The 0.5-20 keV Swift and NuSTAR simultaneous can be fitted well with power law modified by high-energy cut-off of similar to 5.7 keV. The NuSTAR luminosity in the 0.5-79 keV energy range was similar to 7.9 x 10(35) erg s(-1). The spectral flux in 3-79 keV shows modulation with the pulse phase.

引用

页码：4092 / 4097

页数：6

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