Results 1 to 10 of about 29 (29)
Advances in Astronomy, Volume 2012, Issue 1, 2012., 2012 Recent polarimetric surveys of extragalactic radio sources (ERS) at frequencies ν ≳ 1 GHz are reviewed. By exploiting all the most relevant data we study the frequency dependence of polarization properties of ERS between 1.4 and 86 GHz. For flat‐spectrum sources the median (mean) fractional polarization increases from 1.5% (2–2.5%) at 1.4 GHz to 2.5–3%
Marco Tucci +2 more
wiley +1 more source
A 34.5 day quasi-periodic oscillation in γ-ray emission from the blazar PKS 2247-131. [PDF]
Nat Commun, 2018 Zhou J +7 more
europepmc +1 more source
Citation-based clustering of publications using CitNetExplorer and VOSviewer. [PDF]
Scientometrics, 2017 van Eck NJ, Waltman L.
europepmc +1 more source
Testing viable f(R) models with the angular-diameter distance to compact quasar cores. [PDF]
Phys Rev D, 2019 Sultana J, Melia F, Kazanas D.
europepmc +1 more source
Very-long-baseline radio interferometry surveys of the compact structure in active galactic nuclei. [PDF]
Proc Natl Acad Sci U S A, 1995 Wilkinson PN.
europepmc +1 more source
The case for unification. [PDF]
Proc Natl Acad Sci U S A, 1995 Gopal-Krishna.
europepmc +1 more source
The multiwavelength behaviour of BL Lacertae explained by a wiggling filamentary jet
Raiteri C.
europepmc +1 more source
Some of the next articles are maybe not open access.
Detection of minute-timescale γ-ray variability in BL Lacertae by Fermi-LAT
Astronomy and Astrophysics, 2022Ashwani Pandey, C S Stalin
exaly