Results 31 to 40 of about 2,193 (179)
Polarimetric Monitoring of Jets with Kanata Telescope
Galaxies, 2018 The polarization of relativistic jets is of interest for the understanding of their origin, confinement, and propagation. However, even though numerous measurements have been performed, the mechanisms behind jet variability, creation, and composition are
Ryosuke Itoh +3 more
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Discovery of Hidden Blazars [PDF]
Science, 2001 Every radio-loud quasar may have blazar activities, according to a unified scheme where the differences in both optical and radio observations of radio-loud quasars are the result of different viewing angles. We have predicted that blazars may be detected using emission line ratio variations caused by variable illumination of gas clouds in the broad ...
Ma, Feng, Wills, Beverley J.
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What We Talk about When We Talk about Blazars?
Frontiers in Astronomy and Space Sciences, 2017 After the discovery of powerful relativistic jets from Narrow-Line Seyfert 1 Galaxies, and the understanding of their similarity with those of blazars, a problem of terminology was born.
Luigi Foschini
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Is OJ 287 a Single Supermassive Black Hole?
Universe, 2020 Light curves for more than century optical photometric observations of the blazar OJ 287 reveals strong flares with a quasi-period of about 12 years. For a long time, this period has been interpreted by processes in a binary black hole system. We propose
Marina S. Butuzova +1 more
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The “Blazar Sequence” in the TeV Band
The Astrophysical Journal, 2023 The “blazar sequence” has been proposed for more than 20 yr, yet its nature is still unclear. In this work, for the first time we expand this topic to the TeV band by using a sample of 58 TeV blazars, including 48 blazars in the quiescent state and 21 ...
Zhihao Ouyang +9 more
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FLARING PATTERNS IN BLAZARS [PDF]
The Astrophysical Journal, 2011 6 pages, 3 figures, accepted for publication in The Astrophysical ...
Paggi, A. +4 more
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Multiwavelength Variability Analysis of 3C 279
Frontiers in Astronomy and Space Sciences, 2017 We present a multifrequency analysis of the variability in the flat-spectrum radio quasar 3C 279 from 2008 to 2014. Our multiwavelength datasets range from 1 mm to gamma-rays, with additional optical polarimetry.
Víctor M. Patiño-Álvarez +8 more
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Optical and Gamma-Ray Variability of the vRL NLSy1 Galaxy, 1H 0323+342
Galaxies, 2017 1H 0323+342 was one of the first vRLNLSy1 galaxies detected at gamma-rays with the Fermi-LAT and is one of the brightest of this class observed at optical wavelengths.
Hugh R. Miller +3 more
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THE NATURE OF TRANSITION BLAZARS [PDF]
The Astrophysical Journal, 2014 14 pages, 11 Figures, ApJ ...
J. J. Ruan +6 more
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Jet Physics of Accreting Super-Massive Black Holes in the Era of the Fermi Gamma-ray Space Telescope
Frontiers in Astronomy and Space Sciences, 2017 The Fermi Gamma-ray Space Telescope with its main instrument on-board, the Large Area Telescope (LAT), opened a new era in the study of high-energy emission from Active Galactic Nuclei (AGN).
Filippo D'Ammando, Filippo D'Ammando
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