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T: Fachverband Teilchenphysik

T 104: Neutrino Astronomy V

T 104.1: Vortrag

Freitag, 20. März 2026, 09:00–09:15, KS H C

Searching for Periodic Neutrino Emission from Pulsars with KM3NeT — •Robert Petri, Thomas Eberl, and Rodrigo Gracia-Ruiz for the KM3NET-ERLANGEN collaboration — Erlangen Centre for Astroparticle Physics (ECAP) Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany

Neutrino observatories such as KM3NeT enable exploratory searches in the time domain. In this feasibility study, we investigate whether the count rates of the photo-sensors, induced by optical background and potentially by low-energy neutrinos in the GeV range, can be used to probe periodic neutrino emission through precise timing alone. Following up on recent suggestions for neutrino emission scenarios, we investigate promising pulsars and develop an analysis pipeline. The pipeline includes a barycentric time correction and focuses on a Fast Fourier Transform approach to search for a count rate excess with the pulsar spin frequency. The contribution demonstrates the potential and limitations of periodicity searches and evaluates the sensitivity of KM3NeT to derive meaningful constraints on temporally modulated neutrino sources.

Keywords: neutrinos; periodic; pulsar; low energy; FFT