Astro-COLIBRI—The COincidence LIBrary for Real-time Inquiry for Multimessenger Astrophysics

Rauth, R.; Schüßler, F.; Lefranc, V.; Yusafzai, A.; Alkan, Attila; Ashkar, Halim; Tjus, J. Becker

doi:10.3847/1538-4365/ac1517

Cited by 13 publications

(11 citation statements)

References 35 publications

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“…The TOM Toolkit focuses on customization for different science use cases, deployable both as a standalone package as well as with its functionality integrated into larger ecosystems (Street et al 2018). Astro-COLIBRI is an application programming interface (API)based platform, accessible via a public website or through mobile apps, which provides a user-friendly overview of transient astronomical events (Reichherzer et al 2021). Astro-COLIBRI enables users to identify possible multiwavelength or multimessenger counterparts quickly, and assess potential ground-based follow-up options.…”

Section: The Time-domain Software Ecosystemmentioning

confidence: 99%

A Data Science Platform to Enable Time-domain Astronomy

Coughlin¹,

Bloom²,

Nir³

et al. 2023

ApJS

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SkyPortal is an open-source software package designed to discover interesting transients efficiently, manage follow-up, perform characterization, and visualize the results. By enabling fast access to archival and catalog data, crossmatching heterogeneous data streams, and the triggering and monitoring of on-demand observations for further characterization, a SkyPortal-based platform has been operating at scale for >2 yr for the Zwicky Transient Facility Phase II community, with hundreds of users, containing tens of millions of time-domain sources, interacting with dozens of telescopes, and enabling community reporting. While SkyPortal emphasizes rich user experiences across common front-end workflows, recognizing that scientific inquiry is increasingly performed programmatically, SkyPortal also surfaces an extensive and well-documented application programming interface system. From back-end and front-end software to data science analysis tools and visualization frameworks, the SkyPortal design emphasizes the reuse and leveraging of best-in-class approaches, with a strong extensibility ethos. For instance, SkyPortal now leverages ChatGPT large language models to generate and surface source-level human-readable summaries automatically. With the imminent restart of the next generation of gravitational-wave detectors, SkyPortal now also includes dedicated multimessenger features addressing the requirements of rapid multimessenger follow-up: multitelescope management, team/group organizing interfaces, and crossmatching of multimessenger data streams with time-domain optical surveys, with interfaces sufficiently intuitive for newcomers to the field. This paper focuses on the detailed implementations, capabilities, and early science results that establish SkyPortal as a community software package ready to take on the data science challenges and opportunities presented by this next chapter in the multimessenger era.

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Section: The Time-domain Software Ecosystemmentioning

confidence: 99%

A Data Science Platform to Enable Time-domain Astronomy

Coughlin¹,

Bloom²,

Nir³

et al. 2023

ApJS

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“…thanks the Hungarian Academy of Sciences for its Premium Postdoctoral Scholarship. We received the real-time alert for the high-energy neutrino on 2022 September 18 via the tool Astro-COLIBRI (Reichherzer et al 2021).…”

Section: Orcid Idsmentioning

confidence: 99%

Neutrino Cadence of TXS 0506+056 Consistent with Supermassive Binary Origin

Tjus

Jaroschewski

Ghorbanietemad

et al. 2022

ApJL

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On 2022 September 18, an alert by the IceCube Collaboration indicated that a ∼170 TeV neutrino arrived in directional coincidence with the blazar TXS 0506+056. This event adds to two previous pieces of evidence that TXS 0506+056 is a neutrino emitter, i.e., a neutrino alert from its direction on 2017 September 22, and a 3σ signature of a dozen neutrinos in 2014/2015. De Bruijn el al. showed that two previous neutrino emission episodes from this blazar could be due to a supermassive binary black hole (SMBBH) central engine where jet precession close to the final coalescence of the binary results in periodic emission. This model predicted a new emission episode consistent with the 2022 September 18 neutrino observation by IceCube. Here, we show that the neutrino cadence of TXS 0506+056 is consistent with an SMBBH origin. We find that the emission episodes are consistent with an SMBBH with mass ratios q ≲ 0.3 for a total black hole mass of M tot ≳ 3 · 108 M ⊙. For the first time, we calculate the characteristic strain of the gravitational wave emission of the binary, and show that the merger could be detectable by LISA for black hole masses <5 · 108 M ⊙ if the mass ratios are in the range 0.1 ≲ q ≲ 0.3. We predict that there can be a neutrino flare existing in the still-to-be-analyzed IceCube data peaking some time between 2019 August and 2021 January if a precessing jet is responsible for all three detected emission episodes. The next flare is expected to peak in the period 2023 January to 2026 August. Further observation will make it possible to constrain the mass ratio as a function of the total mass of the black hole more precisely and would open the window toward the preparation of the detection of SMBBH mergers.

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“…In addition to these announcements, there are also sites, like the Astronomers Telegram (ATEL) [54], where a brief report about recent observations made by the experiments is posted online. Still in beta testing phase there is a project called Astro-COLIBRI [55] whose goal is to act as a central platform where a large set of information coming from different experiments is gathered. This can be accessed via web or smartphone interface.…”

Section: Alert Systems and Strategiesmentioning

confidence: 99%