Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Yan, Dahai"'
Intrigued by recent high-energy study results for nearby galaxies with gamma-ray emission and in particular NGC~1068 that has been detected as a neutrino-emitting source by the IceCube Neutrino Observatory, we conduct detailed analysis of the $γ$-ra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52e228aa410fc8b2b33052694f6c08ff
The $γ$-ray astronomy in time domain has been by now progressed further as the variabilities of Active Galactic Nuclei (AGNs) on different timescales have been reported a lot. We study the $γ$-ray variabilities of 23 jetted AGNs through applying a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a8eef6a4f3140345a2d4150715c7076
We perform a systematic search of quasi-periodic variabilities in $��$-ray active galactic nuclei (AGNs) in the third \emph{Fermi} Large Area Telescope source catalog (3FGL). We employe two techniques, Lomb-Scargle Periodogram (LSP) and Weighted
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5a471c95f4d45e7e646965f3027d7fd
Blazar variability may be driven by stochastic processes. On the other hand, quasi-periodic oscillation (QPO) behaviors are recently reported to be detected in $\it{Fermi}$-LAT data of blazars. However, the significances of these QPO signals given by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53b65a22701310d1e07e2e590b396d80
Autor:
Cao, Zhen, della Volpe, D., Liu, Siming, Editors, Bi, Xiaojun, Chen, Yang, Piazzoli, B. D'Ettorre, Feng, Li, Jia, Huanyu, Li, Zhuo, Ma, Xinhua, Wang, Xiangyu, Zhang, Xiao, Referees, External, Qie, Xiushu, Hu, Hongbo, Referees, Internal, Sáiz, Alejandro, Yang, Ruizhi, Contributors, Addazi, Andrea, Belotsky, Konstantin, Beylin, Vitaly, Bi, Yu-Jiang, Che, Ming-Jun, Chen, Song-Zhan, Cheng, Yao-Dong, Chiavassa, Andrea, Cirelli, Marco, Di Sciascio, Giuseppe, Esmaili, Arman, Fang, Kun, Fornengo, Nicolao, Gou, Quanbu, Guo, Yi-Qing, Gan, Qingyu, Gong, Guang-Hua, Gu, Min-Hao, He, Haoning, He, Hui-Hai, Hou, Chao, Huang, Xing-Tao, Huang, Wen-Hao, Kachekriess, Michael, Khlopov, Maxim, Korchagin, Vladimir, Korochkin, Alexander, Kuksa, Vladimir, Ksenofontov, Leonid T., Liu, Ye, Liu, Ruo-Yu, Liu, Cheng, Marciano, Antonino, Martineau-Huynh, Olivier, Martraire, Diane, Ma, Lingling, Neronov, Andrii, Panci, Paolo, Pasechnick, Roman, Ruffolo, David, Sakharov, Alexander, Sala, Filippo, Semikoz, Dimiri, Shchegolev, Oleg, Serpico, Pasquale Dario, Sheng, Xiang-Dong, Stenkin, Yuri V., Tam, P. H. Thomas, Vernetto, Silvia, Vallania, Piero, Volchanskiy, Nikolay, Wang, Zhongxiang, Wang, Kai, Wang, Xiang-Yu, Wu, Han-Rong, Wu, Chao-Yong, Wu, Sha, Xiao, Gang, Yang, Rui-zhi, Yan, Dahai, Yao, Zhi-Guo, Yin, Pengfei, Yuan, Qiang, Zeng, Houdun, Zhang, Shou-Shan, Zhang, Yi, Zhou, Xunxiu, Zhu, Hui, Zuo, Xiong
Since the science white paper of the Large High Altitude Air Shower Observatory (LHAASO) published on arXiv in 2019 [e-Print: 1905.02773 (astro-ph.HE)], LHAASO has completed the transition from a project to an operational gamma-ray astronomical obser
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::438832e04dbe31370de0fd502582a780
Considering that the existence of relativistic particles in the protostellar jet has been confirmed by the detection of linearly polarized radio emission from the HH 80-81 jet, we search for gamma-rays from the HH 80-81 system using ten-year {\it Fer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38bb74f155905fb204d19f5a553a639f
We model simultaneous or quasi-simultaneous multi-band spectral energy distributions (SEDs) for a sample of 25 blazars that have radio core-shift measurements, where a one-zone leptonic model and Markov chain Monte Carlo technique are adopted. In the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27b4fa7e97629115c99aa4cfe54eea53
We search for $��$-ray and optical periodic modulations in a distant flat spectrum radio quasar (FSRQ) PKS 0426-380 (the redshift $z=1.1$). Using two techniques (i.e., the maximum likelihood optimization and the exposure-weighted aperture photome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8893e01135ef280054e2e89753affbb
We examine the gamma-ray quasi-periodic variability of PKS 2155-304 with the latest publicly available \emph{Fermi}-LAT Pass 8 data which covers the years from 2008 August to 2016 October. We produce the light curves in two ways, i.e., the exposure-w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b35715aa5549dd77a92b9d87d7dc72c
Precise spectra of 3C 279 in the 0.5-70 keV range, obtained during two epochs of \emph{Swift} and \emph{NuSTAR} observations, are analyzed using a near-equipartition model. We apply a one-zone leptonic model with a three-parameter log-parabola electr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3119b8b802e4e5c0587541ad76b875f2
http://arxiv.org/abs/1509.04945
http://arxiv.org/abs/1509.04945