Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Ze-Jun Jiang"'
Autor:
Wei Zeng, Qing-Jiang Zhao, Ze-Jun Jiang, Zhi-Hui Kong, Zhen Liu, Dong-Dong Wang, Xiong-Fei Geng, Shen-Bang Yang, Ben-Zhong Dai
Publikováno v:
Galaxies, Vol 5, Iss 4, p 85 (2017)
We present long-term optical multi-band photometric monitoring of the blazar OJ 287 from 6 March 2010 to 3 April 2016, with high temporal resolution in the V R I -bands. The flux variations and colour-magnitude variations on long and short timescales
Externí odkaz:
https://doaj.org/article/4a6990361abe445ea3e3c801e27a4ef8
Publikováno v:
Research in Astronomy and Astrophysics. 21:172
The unknown γ-ray excess in the northwest region of Arp 220 was revisited by analyzing ∼11.8 years of the Fermi Large Area Telescope (Fermi-LAT) data in this study. We found that its photon flux was approximately three times higher than that of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f94196f66d3486030c6b915a145ed4a
https://doi.org/10.1088/1674-4527/21/7/172
https://doi.org/10.1088/1674-4527/21/7/172
Publikováno v:
Journal of Computer Science and Technology. 32:585-598
In-network caching is a fundamental mechanism advocated by information-centric networks (ICNs) for efficient content delivery. However, this new mechanism also brings serious privacy risks due to cache snooping attacks. One effective solution to this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ba88c884e581e5ef143eba9cd34f067
https://doi.org/10.1007/s11390-017-1730-2
https://doi.org/10.1007/s11390-017-1730-2
Publikováno v:
Computer Communications. 76:54-66
The newly adopted built-in caching mechanism guarantees efficient content delivery for content-centric networking (CCN) as compared to the existing IP-based networks such as the Internet. However, it is a challenge at the same time for CCN to meet Qo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9db8bd16b0f1f7c7471043960f17ab3e
https://doi.org/10.1016/j.comcom.2015.09.009
https://doi.org/10.1016/j.comcom.2015.09.009
Publikováno v:
Research in Astronomy and Astrophysics. 10:125-134
We analyze the spectral variability and spectral evolution in the optical energy region by using multiband (BVRI) optical observations of S5 0716+714 spanning 1994 to 2005. The spectrum hardens when the source becomes brighter, which is consistent wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b304338d1aacb0c97756cfdb18d04626
https://doi.org/10.1088/1674-4527/10/2/003
https://doi.org/10.1088/1674-4527/10/2/003
Publikováno v:
Research in Astronomy and Astrophysics. 9:1324-1330
An observation of the Vela pulsar with the Fermi Large Area Telescope has been recently reported and the GeV light curve shows two main peaks with a phase separation of ~ 0 . 43 . We study the GeV light curve using the two-pole caustic model in which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88332c91855415b387d10841d09d9af6
https://doi.org/10.1088/1674-4527/9/12/004
https://doi.org/10.1088/1674-4527/9/12/004
Publikováno v:
Chinese Journal of Astronomy and Astrophysics. 8:87-95
We restudy the possible contribution of mature gamma-ray pulsars to cosmic ray positrons based on the new version of outer gap model. In this model, the inclination angle and average properties of the outer gap are taken into account, and more mature
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::663da62890196f7732ae587a68b0d867
https://doi.org/10.1088/1009-9271/8/1/09
https://doi.org/10.1088/1009-9271/8/1/09
Publikováno v:
Publications of the Astronomical Society of Japan. 55:461-466
We studied the parent distributions of pulsar periods and inclination angles by means of the Monte Carlo method. In our simulations, assuming that the parent period distribution satisfies a gamma function with two parameters, we tested a number of va
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ae80d03243fec0c82354327c4d261f0
https://doi.org/10.1093/pasj/55.2.461
https://doi.org/10.1093/pasj/55.2.461
Publikováno v:
Chinese Journal of Astronomy and Astrophysics. 2:8-16
We present a large sample which includes 82 BL Lac objects with redshifts below 0.2 from recent literature. We find strong correlations ill both flux and luminosity between the radio (5 GHz) and optical bands (5500 Angstrom). The correlations in othe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8bf5159985b456d6e4ad6508a314b91a
https://doi.org/10.1088/1009-9271/2/1/8
https://doi.org/10.1088/1009-9271/2/1/8
Publikováno v:
Publications of the Astronomical Society of Japan. 53:469-474
In this paper, we introduce two composite spectral indices, alpha (xox) = alpha (ox) - alpha (x) and alpha (oro) = alpha (or) - alpha (o). In the composite color-color (alpha (xox)-alpha (oro)) diagram, there are three regions: (1) For XBLs and XBL-l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::611a22f76e342d5b00894af1bfd34a24
https://doi.org/10.1093/pasj/53.3.469
https://doi.org/10.1093/pasj/53.3.469