Conveners
MWL: MWL 1
- David Paneque (Max Planck Institute for physics)
MWL: MWL 2
- Maria Magdalena Gonzalez (Universidad Nacional Autonoma de Mexico)
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Jose Andres Garcia-Gonzalez (IF-UNAM)9/18/18, 11:00 AMOral
Many multi-wavelength campaigns have been carried out in the last years to study the correlation between the very high energy (VHE) gamma-ray emission and the X-ray emission in blazars. A linear (even quadratic) correlation has been predicted as consequence of leptonic mechanisms being responsible for the VHE gamma-ray emission. Although the activity in these two energy ranges seems to be...
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Rocco Lico (Max Planck Institute for Radio Astronomy (MPIfR))9/18/18, 11:30 AMOral
Multi-frequency monitorings are an essential tool for investigating the possible connection between the different emission bands, allowing us to discern among the various emission mechanisms producing the observed radiation. In the case of blazars, a strong and significant correlarion was found between radio emission and gamma-rays between 100 MeV and 100 GeV, by using both concurrent and...
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Dr Arti Goyal (Astronomical Observatory of the Jagiellonian University)9/18/18, 11:50 AMOral
Variability power spectral densities (PSDs) of blazar light curves, crudly represented as $P(f) = A f^{-\beta}$, where A is the normalization and $\beta$ is the slope, indicate that the variability is generated due to the underlying {\it stochastic} processes (i.e., $\beta \simeq 1-3$, characteristic of flicker/red noise). We present the results of our power spectral analysis on blazar sources...
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Roberto Angioni (Max-Planck Institut für Radioastronomie)9/18/18, 12:10 PMOral
We report on the first systematic VLBI and gamma-ray monitoring study of a representative sample of radio galaxies with strong compact radio emission, with the aim of exploring the intrinsic relationship between high-energy emission and pc-scale jet properties in active galactic nuclei (AGN). While a number of studies have firmly established a close relationship between the gamma-ray and radio...
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David Paneque (Max Planck Institute for Physics)9/20/18, 2:15 PMOral
Because of their brightness and proximity (z=0.03), Mrk421 and Mrk501 are among the very-high-energy gamma-ray objects that can be studied with the greatest level of detail. This makes them excellent astrophysical high-energy physics laboratories to study the nature of blazars. Since 2009, there has been an unprecedentedly long and dense monitoring of the radio to very-high-energy gamma-ray...
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Dr Víctor Manuel Patiño-Álvarez (Max Planck Institut für Radioastronomie)9/20/18, 2:45 PMOral
In this contribution, I will present the results of a recently published paper on the Flat Spectrum Radio Quasar 3C 279. We use light curves that cover a time-frame of six years, at different wavelengths: Gamma-rays, X-rays, UV 3000 Å continuum, optical V band, Near-Infrared (NIR) JHK bands, 1mm, as well as optical spectropolarimetry.
By applying cross-correlation analysis, We find that the...
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Pankaj Kushwaha (Institute of Astronomy, Geophysics and Atmospheric Sciences, University of Sao Paulo, Sao Paulo, Brazil)9/20/18, 3:05 PMOral
The BL Lac object OJ 287 exhibits a regular ~12 years quasi-periodic outburst in optical band. The latest of this outburst occurred in December 2015 and since then till July 2017, it has exhibited intense multi-wavelength (MW) activity with many new features never seen before. The overall MW activity can be divided into two phases: November 2015 – May 2016, exhibiting strong variability from...
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