hirty-two years ago a report about the measurement of unusual, so-called teraelectronvolt signal from the Crab Nebula captured the attention of the world scientific community.
The authors reported a flux of so-called gamma-ray photons, where each carried an incredible amount of energy, exceeding that of the well-known X-rays by billion times.
How and in which processes the nature managed to pack such a huge energy content into single photons remained a mystery for the coming years.
Researchers used for observations a special technique and instrumentation dubbed as imaging atmospheric Cherenkov telescopes. In the following couple of years not much
has happened and the community started speculating about the new science of a single source. More researchers joined that effort and already ten years after the initial
discovery ~10 sources of teraelectronvolt gamma-rays were known. Today this discipline boasts to know more than 200 sources of very different origin, from supernova
remnants to pulsars, from supermassive active galactic nuclei with black holes in their centre to gamma-ray busts, from binary systems to pulsar wind nebulae.
A new discipline, the so-called astro-particle physics with diverse instrumentation appeared in the cross-roads between physics and astrophysics. In this lecture we
will have a closer look to the details of this rapidly evolving, fascinating frontier science.
Join Zoom Meeting
https://uniroma1.zoom.us/j/89931306878?pwd=WG5RYlYyZzRSMzJsOFpSRHczWEFCZz09
23/02/2021
We are pleased to announce that the second colloquium of the program QUID ULTRA? Frontiers and Controversies in Astrophysics,
will be on February 23 2021 at 16:30 by Razmik Mirzoyan (Max-Planck-Institute for Physics, Munich). Title and abstract
are attached below.
The program QUID ULTRA? Frontiers and Controversies in Astrophysics, a series of monthly prestigious colloquia that will be
running from early February till December 2021. This initiative has been funded by Sapienza University with the co-sponsorship
of INAF/Astronomical Observatory of Rome and of the joint PhD program in Astronomy, Astrophysics and Space Science of Sapienza,
Tor Vergata University and INAF.
Due to the pandemic situation, the first 6 colloquia will be held online via zoom.
The scientific program and all the information on how to attend the meeting can be found on the project website: www.quidultra.it.
Looking forward to seeing you soon,
Raffaella Schneider (on behalf of the SOC)