14–24 Jul 2025
CICG - International Conference Centre - Geneva, Switzerland
Europe/Zurich timezone

Tilepy: Optimizing Multi-Messenger and Time-Domain Astrophysics

Not scheduled
20m
Level -1 & 0

Level -1 & 0

Poster Gravitational Wave, Multi-Messenger & Synergies PO-2

Speaker

Halim Ashkar (Laboratoire Leprince-Ringuet, E ́cole Polytechnique, CNRS, Institut Polytechnique de Paris, F-91128 Palaiseau, France)

Description

The rise of direct detection of gravitational waves (GWs) started a new era in multi-messenger astrophysics. Like GWs, many other astrophysical transient sources suffer from poor localization, which can span tens to thousands of square degrees in the sky. Moreover, as the detection horizon for these transients widens and the detection rate increases, current electromagnetic follow-up facilities require tools to optimize the follow-up of poorly localized events and save valuable telescope time for their time-domain astrophysics programs. We present Tilepy, a Python library, and a tool to optimize the follow-up of poorly localized transient events. Tilepy is used for GWs as well as other poorly localized events such as gamma-ray bursts detected by Fermi-GBM and neutrino candidates from IceCube. Tilepy has also been optimized to integrate smoothly with multiple ground-based observatories operating individually or simultaneously with diverse observational configurations. In this contribution, we introduce the latest developments from Tilepy, mainly the ability to operate with space-based observatories while taking into consideration factors such as Earth, Sun, and Moon occultation and South Atlantic Anomaly passage. We present innovations to the platform, with the possibility of optimizing observation scheduling with novel artificial intelligence tools, examples of its use on the most notable recent transient astrophysical events, and prospects.

Author

Halim Ashkar (Laboratoire Leprince-Ringuet, E ́cole Polytechnique, CNRS, Institut Polytechnique de Paris, F-91128 Palaiseau, France)

Co-authors

Fabian Schüssler (CEA) Monica Seglar-Arroyo (Institut de Fisica d'Altes Energies (IFAE))

Presentation materials