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Pulse phase-resolved analysis of SMC X-3 during its 2016–2017 super-Eddington outburst
Weng, Shan-Shan; Ge, Ming-Yu; Zhao, Hai-Hui +2 more
The Be X-ray pulsar SMC X-3 underwent an extra long and ultraluminous giant outburst from 2016 August to 2017 March. The peak X-ray luminosity is up to
The broad-band spectrum of the narrow-line Seyfert 1 NGC 4748: from UV to hard X-ray
Vasylenko, A. A.
We report the results obtained by a broad-band (0.5–500 keV) data analysis of narrow-line Seyfert 1 galaxy NGC 4748 observed with an XMM-Newton/PN, INTEGRAL/ISGRI and SWIFT/BAT telescopes. This galaxy has a soft X-ray excess that is typical for the class of narrow-line Seyfert 1. The question of the origin of soft excess in such objects is still u…
X-ray stars observed in LAMOST spectral survey
Shi, Jianrong; Han, Xianming L.; Lu, Hong-peng +1 more
X-ray stars have been studied since the beginning of X-ray astronomy. Investigating and studying the chromospheric activity from X-ray stellar optical spectra is highly significant in providing insights into stellar magnetic activity. The big data of LAMOST survey provides an opportunity for researching stellar optical spectroscopic properties of …