Zobrazeno 1 - 10
of 2 916
pro vyhledávání: '"Wang, D-H"'
Autor:
Wang, S. Q., Wang, J. B., Wang, N., Yao, J. M., Hobbs, G., Dai, S., Kou, F. F., Miao, C. C., Li, D., Feng, Y., Dang, S. J., Wang, D. H., Wang, P., Yuan, J. P., Zhang, C. M., Zhang, L., Zhang, S. B., Zhu, W. W.
We report on an {unusually} bright observation of PSR J1720$-$0533 using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The pulsar is in a black widow system that {was discovered by the Commensal Radio Astronomy FAST Survey (CRAFTS
Externí odkaz:
http://arxiv.org/abs/2111.02690
Autor:
Jia, S. M., Qu, J. L., Lu, F. J., Zhang, S. N., Zhang, S., Huang, Y., Wang, D. H., Zhou, D. K., Xiao, G. C., Bu, Q. C., Chen, L., Ma, X., Song, L. M., Tao, L., Cao, X. L., Chen, Y., Liu, C. Z., Xu, Y. P.
We present a detailed spectral-timing analysis of the Kilohertz quasi-periodic oscillations (kHz QPOs) in Sco X-1 using the data of Rossi X-ray Timing Explorer ($RXTE$) and the Hard X-ray Modulation Telescope ($Insight$-HXMT). The energy band with de
Externí odkaz:
http://arxiv.org/abs/2104.08479
We investigated the pulsar radio luminosity ($L$), emission efficiency (ratio of radio luminosity to its spin-down power $\dot{E}$), and death line in the diagram of magnetic field (B) versus spin period (P), and found that the dependence of pulsar r
Externí odkaz:
http://arxiv.org/abs/2007.01015
Autor:
Shang, L. H., Lu, J. G., Du, Y. J., Hao, L. F., Li, D., Lee, K. J., Li, Bin, Li, L. X., Qiao, G. J., Shen, Z. Q., Wang, D. H., Wang, M., Wu, X. J., Wu, Y. J., Xu, R. X., Yue, Y. L., Yan, Z., Zhi, Q. J., Zhao, R. B., Zhao, R. S.
The emission geometries, e.g. the emission region height, the beam shape, and radius-to-frequency mapping, are important predictions of pulsar radiation model. The multi-band radio observations carry such valuable information. In this paper, we study
Externí odkaz:
http://arxiv.org/abs/1703.03582
We analyze the relation between the emission radii of twin kilohertz quasi-periodic oscillations (kHz QPOs) and the co-rotation radii of the 12 neutron star low mass X-ray binaries (NS-LMXBs) which are simultaneously detected with the twin kHz QPOs a
Externí odkaz:
http://arxiv.org/abs/1701.02067
We infer the emission positions of twin kilohertz quasi-periodic oscillations (kHz QPOs) in neutron star low mass X-ray binaries (NS-LMXBs) based on the Alfven wave oscillation model (AWOM). For most sources, the emission radii of kHz QPOs cluster ar
Externí odkaz:
http://arxiv.org/abs/1508.07394
Akademický článek
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Akademický článek
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Publikováno v:
2013, MNRAS, 435, 3494
We test the relativistic precession model (RPM) and the MHD Alfven wave oscillation model (AWOM) for the kHz QPOs by the sources with measured NS masses and twin kHz QPO frequencies. For RPM, the derived NS mass of Cyg X-2 (SAX J1808.4-3658 and 4U 18
Externí odkaz:
http://arxiv.org/abs/1310.4037
Publikováno v:
Astronomische Nachrichten 335 (2014) 168-177
We collect the data of twin kilohertz quasi-periodic oscillations (kHz QPOs) published before 2012 from 26 neutron star (NS) low-mass X-ray binary (LMXB) sources, then we analyze the centroid frequency (\nu) distribution of twin kHz QPOs (lower frequ
Externí odkaz:
http://arxiv.org/abs/1301.5478