Tiling the Sky for Multi-Messenger Astronomy

Description: Tilepy is an open-source platform revolutionizing multi-messenger astrophysics by optimizing the scheduling of follow-up observations for events with large sky localization uncertainties, such as gravitational waves, gamma-ray bursts, and high-energy neutrinos. Main Points ● What is Tilepy? Tilepy is a Python package designed to efficiently schedule observations by correlating galaxy distributions with 3D localization information and optimizing observation strategies across the electromagnetic spectrum. ● How does it work? Tilepy employs sophisticated algorithms that take into account telescope visibility and observability constraints to create observation plans that prioritize the most probable regions of an event. ● Key features: ○ Automatic generation of optimized observation plans. ○ Versatility for various transient events. ○ Integration with Astro-COLIBRI for user-friendly scheduling via web and smartphone apps. ○ Customization options for individual needs and research objectives. ● Real-world impact: Tilepy is the default scheduling tool for high-energy gamma-ray observatories like H.E.S.S. and CTA/LST-1. It was instrumental in the rapid follow-up of GW170817, allowing H.E.S.S. to be the first ground-based instrument to observe the merger location. ● Accessibility: Tilepy is an open-source project available on GitHub, encouraging community contributions and collaboration. Pronunciation: "Tile-pie" ;-) Main Papers: ● M. Seglar-Arroyo et al., “Cross-Observatory Coordination with tilepy: A Novel Tool for Observations of Multi-Messenger Transient Events”, ApJS 274 1 (2024) ● H. Ashkar et al., "The H.E.S.S. gravitational wave rapid follow-up program", JCAP 03 (2021) 045 Additional Resources ● Tilepy GitHub repository: https://github.com/astro-transients/Tilepy ● Tilepy website: https://tilepy.com ● Astro-COLIBRI platform: https://astro-colibri.science Illustration from tilepy.com. Podcast created with Google/NotebookLM.