Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Kang-Fa Cheng"'
Autor:
Jiang-Chuan Tuo, Hong-Bang Liu, Qian-Nan Mai, Qian Zhong, Zu-Ke Feng, Kang-Fa Cheng, En-Wei Liang
Publikováno v:
The Astrophysical Journal, Vol 973, Iss 2, p 113 (2024)
In a Poynting-flux-dominated jet that exhibits an ordered magnetic field, a transition toward turbulence and magnetic disorder follows after magnetic reconnection and energy dissipation during the prompt emission phase. In this process, the configura
Externí odkaz:
https://doaj.org/article/a722473ddbcc43af9846b3837cacdf46
Autor:
Zhi-Fu Chen, Huan-Chang Qin, Jin-Ting Cai, Yu-Tao Zhou, Zhe-Geng Chen, Ting-Ting Pang, Zhi-Wen Wang, Kang-Fa Cheng
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 265, Iss 2, p 46 (2023)
We have collected 10,025 foreground–background quasar pairs with projected distances d _p < 500 kpc from the large quasar catalog of the Sloan Digital Sky Survey DR16Q. We investigate the properties of the Mg ii absorption lines with W _r > 0.15 Å
Externí odkaz:
https://doaj.org/article/ccda1f36f4d349ecb9181be364281fc0
Autor:
Xiao-Hong Zhao, Kang-Fa Cheng
Publikováno v:
Universe, Vol 8, Iss 11, p 588 (2022)
We study the gamma-ray burst (GRB) afterglow light curves produced by an off-axis jet in a stratified circumburst medium and summarize the temporal indices of the coasting phase, the deceleration phase, the Newtonian phase, and the deep Newtonian pha
Externí odkaz:
https://doaj.org/article/413da9ba5cf8409b8eebe3de87b999a1
Autor:
Zhi-Fu Chen, Huan-Chang Qin, Jin-Ting Cai, Yu-Tao Zhou, Zhe-Geng Chen, Ting-Ting Pang, Zhi-Wen Wang, Kang-Fa Cheng
We have collected 10025 foreground-background quasar pairs with projected distances $d_p0.15$ Å around foreground quasars, including both the LOS (line-of-sights of foreground quasars) and transverse (TRA, perpendicular to the LOS) absorptions. Both
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b46de784615183936338b5266f348a2
The afterglow of GRB 170817A has been detected for more than three years, but the origin of the multi-band afterglow light curves remains under debate. A classical top-hat jet model is faced with difficulties in producing a shallow rise of the afterg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f441e42a20f2452867419e8888ad9fa
Autor:
Zhao, Xiao-Hong1,2,3 (AUTHOR) zhaoxh@ynao.ac.cn, Cheng, Kang-Fa4 (AUTHOR)
Publikováno v:
Universe (2218-1997). Nov2022, Vol. 8 Issue 11, p588. 19p.
Publikováno v:
Research in Astronomy & Astrophysics; Jul2021, Vol. 21 Issue 7, p1-11, 11p