ELFT HÍRADÓ

[Ferenc Siklér <sikler.ferenc AT wigner.hu>]

Kedves kollégák,

 Szeretettel meghívunk minden érdeklődőt a Wigner FK Nagyenergiás Fizikai
Osztályának jövő keddi szemináriumára, július 14-re, 11:00-ra.

 Részletek itt (valamint alább):
 https://indico.kfki.hu/event/1197/

 Az előadás a zoom-on keresztül követhető, csatlakozás:
 https://cern.zoom.us/j/96662246048

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Antal Gémes (Trinity College, University of Cambridge [now at Wigner RCP])

Title: High-resolution radio imaging of a gamma-ray blazar candidate using 
very-long-baseline interferometry

Abstract:

Active galactic nuclei are the most luminous persistent objects in the
Universe. They are bright in the entire electromagnetic spectrum. Blazars
are a special class where the jets point nearly to our line of sight.
Because of this special geometry and the bulk relativistic motion of the
plasma in the jet, their radiation is enhanced by relativistic beaming. The
majority of extragalactic objects detected in gamma-rays are blazars.
However, finding their counterparts in other wavebands could be challenging.
Very-long-baseline interferometry (VLBI) measurements provide the ultimate
tool to confirm the blazar nature of a radiosource by imaging compact
radio jet structure with Doppler-boosted radioemission, and give the most
accurate celestial coordinates as well.
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Üdvözlettel,
 Siklér Ferenc