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High Energy Phenomena in Relativistic Outflows VII (HEPRO VII)

9–12 Jul 2019
Facultat de Física, Universitat de Barcelona
Europe/Madrid timezone

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Session

Particle acceleration and Radiation processes

10 Jul 2019, 09:30
Aula Magna Enric Casassas (Facultat de Física, Universitat de Barcelona)

Aula Magna Enric Casassas

Facultat de Física, Universitat de Barcelona

C/ Martí i Franquès 1, 08028 Barcelona, Spain

Conveners

Particle acceleration and Radiation processes

  • Eugeny Derishev

Presentation materials

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  1. 56. PRESENT STATUS OF PARTICLE ACCELERATION IN RELATIVISTIC OUTFLOWS
    Benoît Cerutti (CNRS & Université Grenoble Alpes)
    10/07/2019, 09:30
    Particle acceleration and Radiation processes
    Invited talk

    Relativistic outflows are ubiquitous in high-energy cosmic phenomena. Whether their reservoir of free energy at launch is in the form of bulk kinetic, magnetic or gravitational, it is ultimately channeled into energetic particles and non-thermal radiation. A key question is to understand how this transfer operates efficiently and under which conditions. In this talk, I will review some of the...

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  2. 57. EXTREME REGIMES OF EMISSION IN RELATIVISTIC OUTFLOWS
    Eugeny Derishev (Institute of Applied Physics RAS)
    10/07/2019, 10:00
    Particle acceleration and Radiation processes
    Invited talk

    In the broad-band spectra of blazars there are two broad and widely separated maxima. According to the existing paradigm, the origin of the lower-frequency maximum is explained by the synchrotron radiation of accelerated electrons, and the higher-frequency maximum is produced via inverse Compton radiation from the same population electrons. This paradigm makes it necessary to adopt such...

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  3. 160. Weibel Mediated Shocks Propagating into the Inhomogeneous Media
    Sara Tomita (Aoyama Gakuin University)
    10/07/2019, 10:30
    Particle acceleration and Radiation processes
    contributed talk

    The Weibel instability occurs in collisionless plasma with the temperature anisotropy. It is thought to be important for particle acceleration and generation of magnetic fields in relativistic shocks. Observations of afterglows of gamma ray bursts (GRBs) suggest that magnetic fields are amplified in the large downstream regions of relativistic shocks. However, the magnetic field produced by...

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  4. 117. Relativistic Jet of Markarian 421: Observational Evidences of Particle Acceleration Mechanisms
    Bidzina Kapanadze (Ilia State University)
    10/07/2019, 10:45
    Particle acceleration and Radiation processes
    contributed talk

    Markarian 421 is one the most extreme blazars characterized by complex, unpredictable timing/spectral variability, exclusively strong X-ray flares in some epochs, very broad, nonthermal spectral energy distribution (SED) extending over 19 orders of the frequency and showing a typical two-"hump" structure. The lower-energy component, ranging from the radio to X-rays, is widely accepted to...

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