Results 1 to 10 of about 32 (31)
A tool to understand emission mechanisms of blazars through their high‐energy gamma‐ray emission
Astronomische Nachrichten, Volume 344, Issue 6, August 2023., 2023 The blazar SED is characterized by two energy components. Evidence suggests that the low‐energy component is generated by the synchrotron mechanism, but for the high‐energy component, the mechanism is still uncertain. Two main models have been proposed to explain this emission. According to the leptonic model, a correlation between the emission of both
Mabel Osorio +3 more
wiley +1 more source
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
Morphology of high-luminosity compact radio sources. [PDF]
Proc Natl Acad Sci U S A, 1995 Zensus JA, Krichbaum TP, Lobanov AP.
europepmc +1 more source