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2nd Astro-COLIBRI multi-messenger astrophysics workshop

→ Europe/Paris
Institut Pascal

Institut Pascal

Rue André Rivière 91400 Orsay
Description

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 facilitates life in rapidly evolving real-time multi-messenger astronomy.

Recordings of all presentation are available on the Astro-COLIBRI YouTube channel

 

 

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  • lundi 20 novembre
    • 09:00
      Arrival at Insitut Pascal
    • Introduction

      https://cern.zoom.us/j/64686703976?pwd=Q0tkUGIxSzVQNjl6d2IvaURHaHlQdz09

      ID de réunion: 646 8670 3976
      Code secret: 760146

    • 12:30
      Buffet lunch
    • MWL+MM platforms: Alert distribution

      https://cern.zoom.us/j/66886779806?pwd=Uk44eC83ODBIZFcrVGV5YUgyUGR3Zz09

      ID de réunion: 668 8677 9806
      Code secret: 733876

      • 5
        Virtual Observatory
        Orateur: Ada Nebot
        NEBOT-ASTRO-COLIBRI-1ST-2022.pdf
      • 6
        GCN

        General Coordinates Network (GCN): NASA’s Next Generation Time-Domain and Multimessenger Astronomy Alert System

        Abstract:The Gamma-ray Coordinates Network (GCN) is a public collaboration platform run by NASA for the astronomy research community to share alerts and rapid communications about high-energy, multimessenger, and transient phenomena. Over the past 30 years, GCN has helped enable many seminal advances by disseminating observations, quantitative near-term predictions, requests for follow-up observations, and observing plans. GCN distributes alerts between space- and ground-based observatories, physics experiments, and thousands of astronomers around the world. With new transient instruments from across the electromagnetic spectrum and multimessenger facilities, this coordination effort is more important and complex than ever. We introduce the General Coordinates Network, the modern evolution of GCN built on modern, open-source, reliable, and secure alert distribution technologies, and deployed in the cloud. The new GCN is based on Apache Kafka, the same alert streaming technology that has been selected by the Vera C. Rubin observatory. In this talk, we will present the status and design of the new GCN, a tutorial on how to stream alerts, and a vision of its growth as a community resource in the future.

        Orateur: Judith Racusin (NASA)
        https://nasa-gcn.github.io/gcn-presentation/
      • 7
        ZTF/LSST brokers (e.g. European Broker Initiative)
        Orateur: Jakob Nordin (Humboldt Universität, Berlin)
        Brokers_AstroColibri23.pdf
    • 15:30
      Coffee break
    • Astro-COLIBRI

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

      ID de réunion: 650 4516 2644
      Code secret: 499738

  • mardi 21 novembre
    • Contributed talks

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

      ID de réunion: 671 1582 8357
      Code secret: 258727

      • 10
        IceCube realtime alerts: science and infrastructure

        In recent years, the IceCube realtime program has been publishing alerts following the detection of neutrinos with moderate-to-high probability of being astrophysical. Such alerts are distributed through the NASA General Coordinates Network in two steps: a prompt notice with preliminary details, followed by a circular containing detailed reconstruction information. In this contribution, I will give an overview of the IceCube realtime activities, focused on the IceCube realtime alert selection criteria and on the ongoing efforts to improve the neutrino directional reconstruction. Finally, I will discuss existing and prospective synergies between the IceCube realtime program and the Astro-COLIBRI platform.

        Orateur: Massimiliano Lincetto (RUB)
        Lincetto - AstroColibri.pdf
      • 11
        Online Analysis Framework for Multi-Messenger Astronomy with KM3NeT

        KM3NeT is a Cherenkov-based neutrino telescope under construction in the depth of the Mediterranean sea. It will consist of two main detectors, ARCA and ORCA, sensitive to energies from MeV to PeV. Presently a fraction of both detectors is already data-taking with a completion date foreseen for 2028.
        The telescope design allows for a high duty-cycle, a large field of view, and an unprecedented angular resolution which can be as good as 0.1 deg. To turn that into an asset for multi-messenger astronomy, KM3NeT should be able to identify interesting neutrino candidates and send the relevant information of the reconstructed events in a very short time, allowing for a prompt follow-up of events from transient or variable sources by other observatories. In addition, KM3NeT can provide a follow-up of alerts emitted by partner experiments and be used to refine the position of poorly localized triggers, like gravitational wave alerts.

        This contribution reports on the status of the KM3NeT online analysis framework that has been running since October 2022. The current performance for KM3NeT/ARCA and KM3NeT/ORCA detectors together with a summary of the most relevant results will be presented, as well as some of the tasks performed by the WP4.3 team of the KM3NeT-INFRADEV2 project.

        Orateur: Vincent Cecchini (KM3NeT-INFRADEV2, IFIC Valencia, CSIC)
        Talk_2ndAstroColibri_KM3NeTOnline_CecchiniV.pdf
      • 12
        Searching for sub-TeV neutrino counterparts to sub-threshold gravitational wave events

        Since the release of the Gravitational Wave Transient Catalog GWTC-2.1 by the LIGO-Virgo collaboration, sub-threshold gravitational wave (GW) candidates are publicly available. They are expected to be released in real-time as well, in the upcoming O4 run. Using these GW candidates for multi-messenger studies complements the ongoing efforts to identify neutrino counterparts to GW events. This in turn, allows us to schedule electromagnetic follow-up searches more efficiently. However, the definition and criteria for sub-threshold candidates are pretty flexible. Finding a multi-messenger counterpart via archival studies for these candidates will help to set up strong bounds on the GW parameters which are useful for defining a GW signal as sub-threshold, thereby increasing their significance for setting up follow-up searches. Here, we present the current status of this ongoing work with the IceCube Neutrino Observatory. We perform a selection of the sub-threshold GW candidates from GWTC-2.1 and conduct an archival search for sub-TeV neutrino counterparts detected by the dense-infill array of the IceCube Neutrino Observatory, known as "DeepCore". An Unbinned Maximum Likelihood method is used for this. We report the 90% C.L. sensitivities and 3 sigma discovery potential flux of this sub-TeV neutrino dataset for each selected sub-threshold GW candidate, considering spatial and temporal correlation between the GW and neutrino events within a 1000 s time window.

        Orateur: Tista Mukherjee (IAP, KIT)
        Mukherjee_Astro-Colibri Workshop.pdf
    • 10:00
      Coffee break
    • Contributed talks

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

      ID de réunion: 671 1582 8357
      Code secret: 258727

      • 13
        tilepy: rapid tiling strategies in mid/small FoV observatories
        Orateur: Monica Seglar Arroyo (IFIC)
        tilepy_vFinal.pdf
      • 14
        Observing Strategy for Electromagnetic Follow-up of Gravitational-Wave Events

        In the realm of multi-messenger astronomy (MMA), Implementing an optimal observing strategy to follow electromagnetic (EM) counterparts across the network observatories is a crucial factor to achieve successful observations. By employing the Multi Order Coverage (MOC) data structure and ranking methods, we present an observing strategy in the context of the GECKOrchester tool. The performance of this strategy is evaluated through its application at the Korean network observatory for ongoing and future observing runs of the Advanced LIGO, Advanced Virgo, and KAGRA collaboration.

        Orateur: Elahe Khalouei (Seoul National University)
        Elahe Khalouei.pdf
      • 15
        Powering Source of Gamma Ray Burst Associated Supernovae: Spin-down Millisecond Magnetar?

        The diversity in the observed properties of different types of supernovae (SNe) are crucial to understanding how the life of stars ends differently. Diversity among underlying powering mechanisms may play a vital role among other possible factors (e.g., progenitor, environment). Unique properties and scarcity of Gamma-ray bursts (GRBs) associated SNe (GRB-SNe) seek attention and are exciting for investigating their underlying powering sources. There are three traditional standard models to explain the properties of most of the SNe; radio-active decay of Ni-56 (RD), spin-down millisecond magnetar (MAG), and ejecta-circumstellar interaction (CSM). A magnetar with a spin period of 1 millisecond, mass of 1.4 solar masses, and radius of 10 kilometers has a rotational energy reservoir of nearly 2.2x10^53 ergs, hence can explain the light-curves of various types of SNe, including GRB-SNe. With a given opportunity, I would like to talk about how milliseconds magnetars are the most favorable powering sources of GRB-SNe and will discuss the ultimate tools, such as MOSFiT, MINIM, TigerFit, etc., to probe their characteristics.

        Orateur: Amit Kumar (University of Warwick)
        2nd_Astro-COLIBRI_IPa_Amit-Kumar.pdf
      • 16
        Detectability of GRB Optical Prompt and Afterglow with Iranian National Telescope

        Iranian National Observatory Project is a medium size optical telescope with a primary diameter of 3.4m dedicated for observations of galactic/extra galactic and transient sources. The telescope is an optical RC telescope benefitting from on axis Cassegrain focus and side Cassegrain stations. We aim to detect GRB afterglows and optical prompts/ Kilonoveas and the optical counterparts of GW sources with INO and to joint the community of optical follow up observations with ground based telescopes. I will give a report about our telescope and our efforts to prepare for follow up observations including both software and hardware developments.

        Orateur: Soroush Shakeri (Isfahan University of Technology (IUT))
        Shakeri_INT.pdf
    • 12:00
      Lunch break
    • Brokers and follow-up

      https://cern.zoom.us/j/65926920200?pwd=ZGxLdVlwTE93K2pIZ0R5M1JobjJqQT09

      ID de réunion: 659 2692 0200
      Code secret: 554712

      • 17
        ASAS-SN SkyPatrol

        The All-Sky Automated Survey for Supernovae (ASAS-SN) began observing in late-2011 and has been imaging the entire sky with nightly cadence since late 2017. A core goal of ASAS-SN is to release as much useful data as possible to the community. Currently our Sky Patrol platforms allow users to retrieve forced photometry light curves or to query any number of the continuously updated light curves form our catalog of over 100 million targets. Our team is constantly adding tools for light curve analysis, and in the near future we are planning to release a tool for users to setup alert systems on given subsets of our targets that can be triggered in real time as we image the sky. As an open source platform, we not only take in recommendations from the community, but also benefit from a number of direct contributions to our code base.

        Orateur: Kyle Hart
        ASAS-SN Sky Patrol V2.0: Documentation
        ASAS-SN Sky Patrol V2.0: Python Client
        ASAS-SN Sky Patrol V2.0: Web Interface
        SkyPatrol_Astro-Colibri.pdf
        SkyPatrol_Demo.ipynb
      • 18
        SkyPortal
        Orateur: Theophile Jegou du Laz
        Skyportal_astrocolibri.pdf
      • 19
        BHTom
        Orateur: Lukasz Wyrzykowski (Warsaw University Astronomical Observatory)
        2023.11-21-AstroColibri-BHTOM.pdf
    • Citizen science

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

      ID de réunion: 643 8040 3001
      Code secret: 344296

    • 15:30
      Coffee break
    • Citizen science

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

      ID de réunion: 643 8040 3001
      Code secret: 344296

    • 18:00
      Coffee break
    • Sciathon: introduction

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

      Président de session: Fabian Schüssler (IRFU / CEA Paris-Saclay)
    • Social events: Beer + chips (+ Unistellar demonstration)

      Chez Camille, Orsay
      https://maps.app.goo.gl/naa85yj7A78au6Qs6

  • mercredi 22 novembre
    • Sciathon

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

    • 12:30
      Lunch
    • Sciathon

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

  • jeudi 23 novembre
    • Sciathon

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

    • 12:30
      Lunch
    • Sciathon

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

    • Social events: Dinner

      Chez Camille, Orsay
      https://maps.app.goo.gl/naa85yj7A78au6Qs6

  • vendredi 24 novembre
    • Sciathon: Project presentations

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

    • Sciathon: Conclusion

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

    • 12:30
      Lunch
    • Astro-COLIBRI: free discussions + brainstorming

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

      ID de réunion: 650 4516 2644
      Code secret: 499738

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