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Swift observations of Mrk\,421 in selected epochs. iii. Extreme x-ray timing/spectral properties and multiwavelength lognormality in 2015\,December--2018\,April
B. Kapanadze, A. Gurchumelia, D. Dorner +6
We present the results from the timing and spectral study of Mrk\,421 based mainly on the \emph{Swift} data in the X-ray energy range obtained during the time interval 2015\,Decemb…
MOJAVE XVI: Multi-Epoch Linear Polarization Properties of Parsec-Scale AGN Jet Cores
M. A. Hodge, M. L. Lister, M. F. Aller +4
We present an analysis of the core linear polarization properties of 387 parsec-scale active galactic nuclei (AGN) jets. Using 15 GHz VLBA data, we revisit the conclusions of the f…
Reversals in the Direction of Polarization Rotation in OJ 287
M. H. Cohen, H. D. Aller, M. F. Aller +7
We have obtained a smooth time series for the Electric Vector Position Angle (EVPA) of the blazar OJ 287 at centimeter wavelengths, by making adjustments to archival value…
Core shift effect in blazars
A. Agarwal, P. Mohan, Alok C. Gupta +8
We studied the pc-scale core shift effect using radio light curves for three blazars, S5 0716+714, 3C 279 and BL Lacertae, which were monitored at five frequencies () between 4.…
High Radio Frequency Properties and Variability of Brightest Cluster Galaxies
M. T. Hogan, A. C. Edge, J. E. Geach +15
We consider the high radio frequency (15 GHz - 353 GHz) properties and variability of 35 Brightest Cluster Galaxies (BCGs). These are the most core-dominated sources drawn from a p…
Planck early results. XV. Spectral energy distributions and radio continuum spectra of northern extragalactic radio sources
Planck Collaboration, J. Aatrokoski, P. A. R. Ade +246
Spectral energy distributions (SEDs) and radio continuum spectra are presented for a northern sample of 104 extragalactic radio sources, based on the Planck Early Release Compact S…
On the relation between AGN gamma-ray emission and parsec-scale radio jets
Y. Y. Kovalev, H. D. Aller, M. F. Aller +9
We have compared the radio emission from a sample of parsec-scale AGN jets as measured by the VLBA at 15 GHz, with their associated gamma-ray properties that are reported in the Fe…