|Number||R4-12 / Joint Seminar of ILANCE, IPMU, ICRR|
|Date&Time||February 27, 2023 (Mon.) 15:30-|
|Place||ICRR large seminar room (6F) and Zoom https://u-tokyo-ac-jp.zoom.us/j/87034284601?pwd=ZXFlNzFtcFE2Q0FqaUVWMUJQT2ZJdz09|
|Speaker||Olaf Reimer (The university of Innsbruck), visiting professor of ICRR|
|Title||“Challenges and chances for measuring diffuse emission with IACTs”|
|Abstract||Observations with the Fermi-LAT have impressively confirmed that the majority of celestial gamma-rays are of diffuse origin. Diffuse Galactic gamma-ray emission measured at GeVs is being studied in elaborate models for Cosmic Ray transport, |
and a variety of surprising aspects have been revealed. However, at TeV energies both wide field gamma-ray detectors as well as Imaging Atmospheric Cherenkov Telescopes (IACTs) are challenged with establishing the diffuse Galactic gamma-ray emission, and accordingly their scientific exploration remains still limited. I shall discuss such observation and analysis limits, developments to overcome at least some, and give prospects by example what scientific chances might emerge from sensitive measurements at TeV energies.