Optical polarization variations in the blazar PKS 1749+096
نویسندگان
چکیده
منابع مشابه
Helical Jet in the Gravitationally Lensed Blazar PKS 1830 - 211
Recent radio VLBI observations of the complex gravitationally lensed system PKS1830-211 have thrown up some questions with regard to the processes occuring at the heart of the blazar source at a redshift of 2.51, which is viewed almost straight down the jet axis. This work links, by a model of a helical jet tracked by ballistically ejected plasmons from a precessing nozzle, observations on the ...
متن کاملThe Physics of Blazar Optical Emission Regions I: Alignment of Optical Polarization and the VLBI Jet
We collected optical and near IR linear polarization data obtained over 20–30 years for a sample of 51 blazars. For each object, we calculated the probability that the distribution of position angles was isotropic. The distribution of these probabilities was sharply peaked, with 27 blazars showing a probability < 15% of an isotropic distribution of position angles. For these 27 objects we defin...
متن کاملCircular Polarization in Turbulent Blazar Jets
Circular polarization (CP) provides an invaluable probe into the underlying plasma content of relativistic jets. CP can be generated within the jet through a physical process known as linear birefringence. This is a physical mechanism through which initially linearly polarized emission produced in one region of the jet is attenuated by Faraday rotation as it passes through other regions of the ...
متن کاملTwo classes of radio flares in the blazar PKS 0420 − 014
The two 5GHz VLBI (Very Long Baseline Interferometry) observations (1996 June and 1997 November) presented in this paper, combined with several former VLBI observations at 8.4GHz and 5GHz, suggest that the radio flares of the blazar PKS 0420−014 can be divided into two classes according to their geometric origins in 5 or 8.4GHz VLBI maps and the properties of light curves. One class of flares, ...
متن کاملThe broad-band X-ray spectrum of the blazar PKS B1830−211 by Chandra and INTEGRAL
In this paper we present a broad-band study of the X-ray emission of the blazar PKS 1830−211 based on Chandra and INTEGRAL observations. Notwithstanding the high redshift (z=2.507), it is a bright X-ray source (F(2-10 keV)≃ 10 erg cms), due to gravitational lensing by an intervening galaxy at z=0.89. Previous X-ray observations attribute the observed absorption at E<2 keV to the lensing galaxy....
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Publications of the Astronomical Society of Japan
سال: 2017
ISSN: 0004-6264,2053-051X
DOI: 10.1093/pasj/psx111