搜索结果: 1-15 共查到“天文学 Blazars”相关记录16条 . 查询时间(0.265 秒)
F-GAMMA: On the phenomenological classification of continuum radio spectra variability patterns of Fermi blazars
F-GAMMA phenomenological classification continuum radio spectra variability patterns Fermi blazars
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2012/2/21
The F-GAMMA program is a coordinated effort to investigate the physics of Active Galactic Nuclei (AGNs) via multi-frequency monitoring of Fermi blazars. In the current study we show and discuss the ev...
Gamma-Ray and Parsec-Scale Jet Properties of a Complete Sample of Blazars From the MOJAVE Program
Gamma-Ray Parsec-Scale Jet Properties Complete Sample Blazars From MOJAVE Program
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2011/10/19
We investigate the Fermi LAT gamma-ray and 15 GHz VLBA radio properties of a joint gamma-ray- and radio-selected sample of AGNs obtained during the first 11 months of the Fermi mission (2008 Aug 4 - 2...
Variability in Blazars: Clues from PKS 2155-304
black hole physics – magnetic reconnection – relativistic processes – turbulence– galaxies: BL Lacertae objects: individual: PKS 2155-304 – galaxies: jets
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2011/10/20
Rapid variability on a time scale much faster than the light-crossing time of the central supermassive black hole has been seen in TeV emission from the blazar PKS 2155-304. The most plausible explana...
Blazars as Ultra-High-Energy Cosmic-Ray Sources: Implications for TeV Gamma-Ray Observations
Ultra-High-Energy Cosmic-Ray Sources Implications TeV Gamma-Ray Observations
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2011/10/20
Spectral fitting of correlated multiwavelength data of BL Lac objects and Fanaroff-Riley I radio galaxies gives the mean comoving magnetic field strength B', the bulk outflow Doppler factor Gamma, and...
Flux density measurements of a complete sample of faint blazars
fl ux density spectral index polarisation – galaxies quasars BL Lacs radio continuum galaxies
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2011/10/18
We performed observations with the Effelsberg 100-m radio telescope to measure flux densities and polarised emission of sources selected from the "Deep X-ray Radio Blazar Survey" (DXRBS) to better def...
Stochastic Acceleration and the Evolution of Spectral Distributions in SSC Sources: A Self Consistent Modeling of Blazars' Flares
Stochastic Acceleration Evolution Spectral Distributions
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2011/9/30
The broad-band spectral distributions of non-thermal sources, such as those of several known blazars, are well described by a log-parabolic fit. The second degree term in these fits measures the curva...
Characteristics of Gamma-Ray Loud Blazars in the VLBA Imaging and Polarimetry Survey
Gamma-Ray Loud Blazars the VLBA Imaging
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2011/1/11
The radio properties of blazars detected by the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope have been observed as part of the VLBA Imaging and Polarimetry Survey (VIPS). Th...
Aim of this work is a broad-band study with INTEGRAL, Swift and XMM-Newton satellites of a sample of 9 blazars (7 FSRQ and 2 BL Lac) with redshift up to about 4. The spectral analysis has shown clear ...
We study the expected variability patterns of blazars within the two-zone acceleration model putting special emphasis on flare shapes and spectral lags. We solve semi-analytically the kinetic equation...
The Cosmological Evolution of Blazars and the Extragalactic Gamma-Ray Background in the Fermi Era
Cosmological Evolution Blazars Extragalactic Gamma-Ray Background
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2010/3/8
The latest determination of the extragalactic gamma-ray background (EGRB) radiation by Fermi is compared with the theoretical prediction of the blazar component by Inoue & Totani (2009; hereafter IT09...
Integral and Swift Observations of Blazars in Outburst
Integral Swift Observations Blazars
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2009/7/9
Integral and Swift Observations of Blazars in Outburst。
Searching for distant blazars with GLAST and the Large Millimeter Telescope
Large Millimeter Telescope GLAST
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2009/7/9
Searching for distant blazars with GLAST and the Large Millimeter Telescope。
Hidden blazars and emission line variability of high redshift quasars
emission line high redshift quasars
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2009/6/8
Hidden blazars and emission line variability of high redshift quasars。
Effect of Particle Acceleration Process on the Flare Characteristics of Blazars
kinetic equation approach X-ray region
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2009/5/19
Following the kinetic equation approach, we study the flare
processes in blazars in the optical-to-X-ray region, considering energy
dependent acceleration time-scale of electrons and synchrotron and...
期刊信息
篇名
The Gamma-ray Bright Blazars: Spectral Properties in X-Rays and Gamma-Rays
语种
英文
撰写或编译
撰写
作者
戴本忠、张力
第一作者单位
云南大学物理学
刊物名称
PASJ
页面
939-945
出版日期
2003年
10月
日
文章标识(ISSN)
0004-6264
相关项目
γ噪blazar天体快速光...