Zobrazeno 1 - 10
of 1 849
pro vyhledávání: '"Bu, Q."'
Autor:
Li, P. P., Tao, L., Ma, R. C., Ge, M. Y., Zhao, Q. C., Zhao, S. J., Zhang, L., Bu, Q. C., Kong, L. D., Tuo, Y. L., Ji, L., Zhang, S., Qu, J. L., Zhang, S. N., Huang, Y., Ma, X., Ye, W. T., Shui, Q. C.
We present a comprehensive timing analysis on the Be/X-ray binary pulsar RX J0440.9+4431 using observations from \textit{NICER} and \textit{Insight}-HXMT during the 2022--2023 outburst. The power density spectrum (PDS) of RX J0440.9+4431 exhibits typ
Externí odkaz:
http://arxiv.org/abs/2402.14226
Autor:
Zhao, S. J., Tao, L., Li, P. P., Soria, R., Feng, H., Zhang, Y. X., Ma, R. C., Zhang, W. D., Qiao, E. L., Yin, Q. Q., Zhang, S. N., Zhang, L., Bu, Q. C., Ma, X., Huang, Y., Ge, M. Y., Li, X. B., Zhao, Q. C., Peng, J. Q., Xiao, Y. X.
Publikováno v:
A&A 685, A42 (2024)
The black hole X-ray binary source 4U 1543--47 experienced a super-Eddington outburst in 2021, reaching a peak flux of up to $\sim1.96\times10^{-7}\rm erg\ \rm cm^{-2}\ \rm s^{-1}$ ($\sim 8.2$ Crab) in the 2--10\,keV band. Soon after the outburst beg
Externí odkaz:
http://arxiv.org/abs/2312.09632
Autor:
Li, P. P., Tao, L., Tuo, Y. L., Ge, M. Y., Kong, L. D., Zhang, L., Bu, Q. C., Ji, L., Qu, J. L., Zhang, S., Zhang, S. N., Huang, Y., Ma, X., Ye, W. T., Zhao, Q. C., Ma, R. C., Zhao, S. J., Hou, X., Yang, Z. X., Wang, P. J., Jia, S. M., Shui, Q. C., Guan, J.
RX J0440.9+4431, a Be/X-ray binary, had its brightest outburst in 2022 since its discovery, with a peak X-ray flux of 2.25 Crab (as recorded by Swift/BAT, 15-50 keV). We analyze the timing properties of this giant outburst using data from Insight-HXM
Externí odkaz:
http://arxiv.org/abs/2309.14858
Autor:
Li, P. P., Tao, L., Zhang, L., Bu, Q. C., Qu, J. L., Ji, L., Wang, P. J., Chen, Y. P., Zhang, S., Ma, R. C., Yang, Z. X., Ye, W. T., Zhao, S. J., Zhao, Q. C., Huang, Y., Ma, X., Qiao, E. L., Jia, S. M., Zhang, S. N.
MAXI J181-195 is a newly discovered accreting millisecond X-ray pulsar that went outburst in June 2022. Through timing analysis with NICER and NuSTAR observations, we find a transient modulation at ~2.5 Hz during the decay period of MAXI J1816-195. T
Externí odkaz:
http://arxiv.org/abs/2307.13955
Autor:
Yorgancioglu, E. S., Bu, Q. C., Santangelo, A., Tao, L., Davis, S. W., Vahdat, A., Kong, L. D., Piraino, S., Zhou, M., Zhang, S. N.
Publikováno v:
A&A 677, A79 (2023)
4U 1543--47 is one of a handful of known black hole candidates located in the Milky Way Galaxy, and has undergone a very bright outburst in 2021, reaching a total of $\sim$9 Crab, as observed by the Monitor of All-sky Image (MAXI), and exceeding twic
Externí odkaz:
http://arxiv.org/abs/2307.08973
Autor:
Ma, X., Zhang, L., Tao, L., Bu, Q. C., Qu, J. L., Zhang, S. N., Zhou, D. K., Huang, Y., Jia, S. M., Song, L. M., Zhang, S., Ge, M. Y., Liu, H. X., Yang, Z. X., Yu, W., Yorgancioglu, E. S.
We report the X-ray timing results of the black hole candidate MAXI J1820+070 during its 2018 outburst using the Hard X-ray Modulation Telescope (Insight-HXMT) and Neutron Star Interior Composition Explorer Mission (NICER) observations. Low frequency
Externí odkaz:
http://arxiv.org/abs/2303.00481
Autor:
Fu, Yu-Cong, Song, L. M., Ding, G. Q., Ge, M. Y., Tuo, Y. L., Zhang, S., Zhang, S. N., Hou, X., Qu, J. L., Zhang, J., Zhang, L., Bu, Q. C., Huang, Y., Ma, X., Zhou, X., Yan, W. M., Yang, Z. X., Lu, X. F., Li, T. M., Xu, Y. C., Wang, P. J., Xiao, S. H., Liu, H. X., Ren, X. Q., Du, Y. F., zhao, Q. X., Xiao, Y. X.
We report the evolution of the X-ray pulsations of EXO 2030+375 during its 2021 outburst using the observations from \textit{Insight}-HXMT. Based on the accretion torque model, we study the correlation between the spin frequency derivatives and the l
Externí odkaz:
http://arxiv.org/abs/2302.02167
Autor:
Zhou, M., Grinberg, V., Bu, Q. -C., Santangelo, A., Cangemi, F., Diez, C. M., König, O., Ji, L., Nowak, M. A., Pottschmidt, K., Rodriguez, J., Wilms, J., Zhang, S., Qu, J. -L., Zhang, S. -N.
Publikováno v:
A&A 666, A172 (2022)
Cygnus X-1, as the first discovered black hole binary, is a key source for understanding the mechanisms of state transitions, and the scenarios of accretion in extreme gravity fields. We present a spectral-timing analysis of observations taken with t
Externí odkaz:
http://arxiv.org/abs/2209.05930
Autor:
Liu, H. X., Huang, Y., Bu, Q. C., Yu, W., Yang, Z. X., Zhang, L., Kong, L. D., Xiao, G. C., Qu, J. L., Zhang, S. N., Zhang, S., Song, L. M., Jia, S. M., Ma, X., Tao, L., Ge, M. Y., Liu, Q. Z., Yan, J. Z., Ma, R. C., Ren, X. Q., Zhou, D. K., Li, T. M., Wu, B. Y., Xu, Y. C., Du, Y. F., Fu, Y. C., Xiao, Y. X., Ding, G. Q., Yu, X. X.
The fast transitions between different types of quasi-periodic oscillations (QPOs) are generally observed in black hole transient sources (BHTs). We present a detailed study on the timing and spectral properties of the transitions of type-B QPOs in M
Externí odkaz:
http://arxiv.org/abs/2208.07066
Autor:
Ma, R. C., Soria, R., Tao, L., Zhang, W., Qu, J. L., Zhang, S. N., Zhang, L., Qiao, E. L., Zhao, S. J., Ge, M. Y., Li, X. B., Huang, Y., Song, L. M., Zhang, S., Bu, Q. C., Wang, Y. N., Ma, X., Jia, S. M.
We studied the transient Galactic black hole candidate MAXI J0637-430 with data from Insight-HXMT, Swift and XMM-Newton. The broad-band X-ray observations from Insight-HXMT help us constrain the power-law component. MAXI J0637-430 is located at unusu
Externí odkaz:
http://arxiv.org/abs/2206.03409