4th Astro-COLIBRI multi-messenger astrophysics workshop

20 oct. 2025, 09:00 → 24 oct. 2025, 17:00 Europe/Paris

Amphitheater + Cathedrale+ Offices (Institut Pascal)

Fabian Schussler (IRFU / CEA Paris-Saclay), Monica Seglar-Arroyo (IFAE), Patrick Reichherzer (University of Oxford), Ilja Jaroschewski (IRFU / CEA Paris-Saclay), Bernardo Cornejo (IRFU / CEA Paris-Saclay)

The key objective of this workshop is to discuss and develop a research agenda on interconnecting software tools for real-time multi-messenger astronomy. This international workshop provides a forum for leading scientists and young researchers to foster communication between developers and users covering a large range of expertise in the production and use of software tools that make life easier in the rapidly evolving domain of real-time multi-messenger astronomy.

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Funding and support from :

 

lun. 20 octobre ¶

09:00 → 10:00 Arrival at Insitut Pascal

10:00 → 12:30 Introduction: Keynotes¶

10:00 Welcome¶

Orateur: Fabian Schüssler (IRFU / CEA Paris-Saclay)

11:00 Vera Rubin / LSST¶

Orateur: Bruno Sanchez (CPPM)

11:45 Astrophysics software development: some perspectives, suggestions, and the write-only documentation phenomenon.¶

Orateur: Phil Evans (Leicester University)

12:30 → 14:00 Buffet lunch

14:00 → 15:15 Messengers: GW + Radio¶

14:00 Latest results from the LVK O4a observing run¶

In this talk, that I will give on behalf of the LVK Collaboration, I will present the latest results from the O4a observing run, placing a special emphasis on the new events in GWTC-4, the multi-messenger and cosmological results obtained.

Orateur: Gergely Dálya (L2IT, Toulouse)

14:15 Radio variability with ASKAP and LOFAR¶

In this talk, I will discuss the current state of transient studies in the radio domain. With SKA precursor and pathfinder instruments, we are collecting unprecedentedly rich and dense datasets, opening new frontiers in transient astronomy. However, this rapid data influx presents key challenges, particularly in storage and accessibility of light curve data. I will highlight these challenges and explore how radio observations offer unique advantages in identifying and characterizing transients by showing a few compelling examples.

Orateur: Iris de Ruiter (University of Sydney)

14:30 Radio follow-ups¶

15:15 → 15:30 Coffee break

15:30 → 16:30 Messengers: Optical surveys¶

15:30 ZTF¶

Orateur: Matthew Graham (Caltech)

15:45 ASAS-SN¶

Orateur: Kyle Hart

16:00 ATLAS¶

Orateur: Heloise Stevance (University of Oxford)

16:15 The Gravitational-wave Optical Transient Observer (GOTO) project¶

I will present the GOTO project: an array of wife-field survey telescopes principally aimed at following gravitational wave (GW) alerts and performing rapid searches of the localisation areas. The array is situated over two sites, covering Northern and Southern skies, performing an all-sky optical survey, alongside multi-messenger follow up. In addition to GW alerts, GOTO regular reacts to high-energy GRB/X-ray and neutrino alerts, with an in place system to enact automated follow-up and alerting of high confidence candidates, for dissemination to the community.

Orateur: Joseph Lyman (University of Warwick)

16:30 → 16:45 Coffee break

16:45 → 17:15 Citizen science: Open Universe¶

https://cern.zoom.us/j/64380403001?pwd=eDFCcC9UTjVTa0d2ZjhIcDJrRVdZQT09

ID de réunion: 643 8040 3001
Code secret: 344296

16:45 Open Universe¶

Orateur: Ulisses Barres de Almeida (CBPF, Rio de Janeiro)

17:00 Erasmus Synergies in the Andes and Beyond: Training Multimessenger Astronomers through LA-CoNGA & EL-BONGÓ¶

LA-CoNGA physics (Erasmus+ 2019-23) validated a Bologna-aligned, one-year master's curriculum that merges data science, scientific instrumentation and high-energy physics to modernise graduate education across the Andean region. Eight universities pooled more than 200 open Spanish-language resources and eight remotely operable HEP laboratories via RedCLARA, enabling three cohorts to keep learning seamlessly during the pandemic. The initiative also advanced gender equity, open science practices, and collaborations with CERN, demonstrating that small and medium-sized institutions can excel when they share hardware, software, and teaching expertise.
EL-BONGÓ physics (Erasmus+ 2025-28) scales the concept geographically and disciplinarily. Twelve Central American and Andean partners will weave four Research and learning Communities—High-Energy Physics, Multimessenger Astronomy, Seismology and Earth Hazards, and AI and computational Tools—into a federated Digital Science Hub. FABLabs nurture open-hardware skills, blockchain certificates secure the portability of new 16-hour, 3-ECTS micro-modules, and citizen-science hackathons keep the ecosystem outward-facing.
For Astro-COLIBRI, which disseminates rapid alerts on extreme cosmic phenomena, the synergy is immediate. LA-CoNGA provides a tested pedagogical backbone and culture of reproducibility. At the same time, EL-BONGÓ's multimessenger-astronomy cluster, partnered with the Latin American Giant Observatory, offers real-time data streams, open-source pipelines, and a ready network of early-career scientists. Together, the two Erasmus projects outline a repeatable roadmap for educating, equipping, and connecting the next generation of astronomers who will not only utilise Astro-COLIBRI alerts but also enhance them, fostering a truly borderless, inclusive approach to multi-messenger discovery.

Orateur: Luis Nuñez (Universidad Industrial de Santander)

17:15 → 18:15 Astro-COLIBRI¶

https://cern.zoom.us/j/65045162644?pwd=QThndTZkMWZMSENkSHh0bTBlZDVpdz09

ID de réunion: 650 4516 2644
Code secret: 499738

mar. 21 octobre ¶

09:00 → 10:30 Contributed talks¶

https://cern.zoom.us/j/67115828357?pwd=UmdwbW0yWHBDOFRjV2NBdjNhd3g2dz09

ID de réunion: 671 1582 8357
Code secret: 258727

10:30 → 11:00 Coffee break

11:00 → 12:30 Contributed talks¶

https://cern.zoom.us/j/67115828357?pwd=UmdwbW0yWHBDOFRjV2NBdjNhd3g2dz09

ID de réunion: 671 1582 8357
Code secret: 258727

12:30 → 14:00 Lunch break

14:00 → 15:40 Platforms¶

14:00 GCN¶

14:20 TNS¶

14:40 European Broker Initiative¶

Orateur: Ken Smith (University of Oxford)

15:00 TOM toolkit¶

Orateur: Lindy Lindstrom (Las Cumbres Observatory)

15:40 → 16:00 Coffee break

16:00 → 17:20 Platforms¶

16:00 MMDC¶

Orateur: Narek Sahakyan (ICRANet Armenia IO)

16:20 Tilepy¶

Orateur: Monica Seglar Arroyo (IFAE)

16:40 m4opt¶

Orateur: Weizmann Kiendrébéogo (IRFU / CEA Paris-Saclay)

17:00 BHTOM: Sit back and relax - the robots are doing the astronomy job for you¶

I will present BHTOM.space tool for an automated time-domain target coordination. The main feature of BHTOM is that it can automatically send telescope observing requests, accept telescope images, process them and produce science-ready standardised measurements. Everything so you can focus on what is essential.

Orateur: Lukasz Wyrzykowski (University of Warsaw)

17:20 → 18:05 Citizen science¶

https://cern.zoom.us/j/64380403001?pwd=eDFCcC9UTjVTa0d2ZjhIcDJrRVdZQT09

ID de réunion: 643 8040 3001
Code secret: 344296

17:20 RAPAS¶

Thanks to the support of Paris Observotory, RAPAS build a french amateur network equiped withe Gaia like filters and with prototypes of spetrograph to deliver photometric monitoring and SED on alerts. We intend to develop on an international scale this network. Therefore we have to implement a pipeline to provide data to the scientific community.

Orateur: Thierry Midavaine (SAF)

17:35 Verein der Sternenfreunde (Association of German Amateur Astronomers)¶

Orateur: Dominik Elsässer (Universität Dortmund)

17:50 Pro-Am Commission of the Spanish Astronomical Society¶

Since 2009, the Spanish Astronomy Society (SEA) has maintained a dedicated working group to foster this relationship: the ProAm Commission. This Commission assessed the state of ProAm collaboration in Spain in 2021 and then again in 2023. Data for the reports were gathered from recent amateur astronomy conferences, a thorough review of scientific publications involving amateur astronomers, and two surveys targeting both amateur and professional astronomers. The reports highlighted that Spanish amateur astronomers are actively collaborating with professionals, with approximately 100 amateurs consistently contributing to scientific publications and astronomical circulars. To date, Spanish amateurs have participated in over 200 peer-reviewed articles and nearly 5,000 astronomical circulars. However, the reports also revealed a notable gender disparity: only 4% of professional and 7% of amateur contributors in these collaborations are women. And both amateur and professional communities expressed a need for better communication channels. In this conference, we will review the measures taken by the SEA ProAm Commission during the last years to solve the gender gap and the lack of communication, and to promote new and better ProAm collaborations in Spain.

Orateur: Itziar Garate-Lopez (Universidad del País Vasco / Euskal Herriko Unibertsitatea (UPV/EHU))

18:05 → 18:50 Sciathon: introduction¶

https://cern.zoom.us/j/68847741726?pwd=QVBNaDlUSml1Y2MzN21pL0NocUNCZz09

Président de session: Fabian Schüssler (IRFU / CEA Paris-Saclay)

18:05 → 20:00 Social events: Beer + chips¶

mer. 22 octobre ¶

09:30 → 12:30 Sciathon¶

https://cern.zoom.us/j/68847741726?pwd=QVBNaDlUSml1Y2MzN21pL0NocUNCZz09

12:30 → 14:00 Lunch

14:00 → 18:00 Sciathon¶

https://cern.zoom.us/j/68847741726?pwd=QVBNaDlUSml1Y2MzN21pL0NocUNCZz09

jeu. 23 octobre ¶

09:30 → 12:30 Sciathon¶

https://cern.zoom.us/j/68847741726?pwd=QVBNaDlUSml1Y2MzN21pL0NocUNCZz09

12:30 → 14:00 Lunch

14:00 → 18:00 Sciathon¶

https://cern.zoom.us/j/68847741726?pwd=QVBNaDlUSml1Y2MzN21pL0NocUNCZz09

19:30 → 22:30 Social events: Dinner¶

ven. 24 octobre ¶

10:00 → 12:00 Sciathon: Project presentations¶

https://cern.zoom.us/j/68847741726?pwd=QVBNaDlUSml1Y2MzN21pL0NocUNCZz09

12:00 → 12:30 Sciathon: Conclusion and end of the workshop¶

https://cern.zoom.us/j/68847741726?pwd=QVBNaDlUSml1Y2MzN21pL0NocUNCZz09

12:30 → 14:00 Lunch

14:00 → 16:00 Astro-COLIBRI: free discussions + brainstorming¶

https://cern.zoom.us/j/65045162644?pwd=QThndTZkMWZMSENkSHh0bTBlZDVpdz09

ID de réunion: 650 4516 2644
Code secret: 499738