Dortmund 2021 – wissenschaftliches Programm
T 54.1: Vortrag
Mittwoch, 17. März 2021, 16:00–16:15, Td
Follow-Up Search for UHE Photons after Gravitational Wave Events with the Pierre Auger Observatory — •Philip Ruehl, Marcus Niechciol, and Markus Risse — Center for Particle Physics Siegen, Experimentelle Teilchenphysik, Universität Siegen
With the first detection of a gravitational wave (GW) event by the Advanced LIGO detectors in September
2015 a new window to multimessenger astronomy has been opened. The origin of this event has later been
identified as the merger of a binary black hole system. Since then,
multiple gravitational wave events have been observed from different sources. Possibly, these transient objects
could be sources of ultra-high-energy (UHE) cosmic rays. This can be tested by multimessenger observations.
Unlike charged particles, neutral messengers like
neutrinos and photons carry information about the direction and the time of their production site making them ideal
tools for multimessenger astronomy. While in classical scenarios photons can interact with the
cosmic microwave background such that a measurable UHE photon fraction
would only be expected from nearby sources, a UHE photon detection from a distant source could point
towards new physics.
To extend the search window of the Pierre Auger Observatory, in addition to the established follow-up neutrino search now also a follow-up photon search is being developed. In this contribution, the first approach towards a search for UHE photons from GW sources using the surface detector of the Pierre Auger Observatory will be presented.
Gefördert durch BMBF-Verbundforschung.