Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Yan, Dahai"'
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
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
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=arXiv_______::a1871f87d32457b52bb559b2eb2e20f0
http://arxiv.org/abs/1711.05889
http://arxiv.org/abs/1711.05889
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
The detections of X-ray emission from the kiloparsec-scale jets of blazars and radio galaxies may imply the existence of high energy electrons in these extended jets, and these electrons could produce high energy emission through inverse Compton (IC)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32ce39d2c6c038c9035de59da1260ee4
http://arxiv.org/abs/1205.6149
http://arxiv.org/abs/1205.6149
We study the locations of emission regions through modelling the quasi-simultaneous multi-frequency spectral energy distributions of 21 {\it Fermi} flat spectrum radio quasars (FSRQs) in the frame of a multi-component one-zone leptonic model. In our
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5045c04dc143f6d0f99edc2165e9fbeb
We estimate the contribution to the extragalactic gamma-ray background (EGRB) from both intrinsic and cascade emissions produced by blazars using a simple semi- analysis method for two models of the blazar gamma-ray luminosity function (GLF). For the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::440c05d3336723a95630f03ad238fbbe