High-Energy Alerts in the Multi-Messenger Era

Dorner, D.; Mostafá, M.; Satalecka, K.

doi:10.3390/universe7110393

Cited by 7 publications

(5 citation statements)

References 102 publications

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“…User input has been leveraged to include additional features, event categories, notification streams, and use cases. The interfaces have also become more intuitive and informative over the last 12 updates of Astro-COLIBRI 3 . We briefly overview new functionalities in the following, leaving the full details to the documentation, as they are liable to change as the platform is improved further:…”

Section: New Features Of Astro-colibrimentioning

confidence: 99%

“…Sources of these events exhibit temporal variability on various scales and include gamma-ray bursts (GRBs), flares of active galactic nuclei (AGN), supernova (SN) explosions, and fast radio bursts (FRBs). Advances in the multi-messenger and multi-wavelength approach are driven by next-generation monitoring and follow-up observatories combined with an ecosystem of numerous complimentary services dedicated to a rapid information exchange [3].…”

Section: Introductionmentioning

confidence: 99%

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Astro-COLIBRI 2—An Advanced Platform for Real-Time Multi-Messenger Discoveries

et al. 2023

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The study of flaring astrophysical events in the multi-messenger approach requires instantaneous follow-up observations to better understand the nature of these events through complementary observational data. We present Astro-COLIBRI as a platform that integrates specific tools in the real-time multi-messenger ecosystem. The Astro-COLIBRI platform bundles and evaluates alerts about transients from various channels. It further automates the coordination of follow-up observations by providing and linking detailed information through its comprehensible graphical user interface. We present the functionalities with documented examples of Astro-COLIBRI usage through the community since its public release in August 2021. We highlight the use cases of Astro-COLIBRI for planning follow-up observations by professional and amateur astronomers, as well as checking predictions from theoretical models.

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Section: New Features Of Astro-colibrimentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Astro-COLIBRI 2—An Advanced Platform for Real-Time Multi-Messenger Discoveries

et al. 2023

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“…To answer the above questions, both leptonic and hadronic models have been discussed. Important constraints on the latter scenario are offered by multi-messenger observations that include follow-up and monitoring of GRBs by neutrino detectors [227]. Even non-detections offer very useful information about the underlying radiation mechanism.…”

Section: Outstanding Questionsmentioning

confidence: 99%

Gamma-Ray Bursts at TeV Energies: Theoretical Considerations

Gill

Granot

2022

Galaxies

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Gamma-ray bursts (GRBs) are the most luminous explosions in the Universe and are powered by ultra-relativistic jets. Their prompt γ-ray emission briefly outshines the rest of the γ-ray sky, making them detectable from cosmological distances. A burst is followed by, and sometimes partially overlaps with, a similarly energetic but very broadband and longer-lasting afterglow emission. While most GRBs are detected below a few MeV, over 100 have been detected at high (≳0.1 GeV) energies, and several have now been observed up to tens of GeV with the Fermi Large Area Telescope (LAT). A new electromagnetic window in the very-high-energy (VHE) domain (≳0.1 TeV) was recently opened with the detection of an afterglow emission in the (0.1–1)TeV energy band by ground-based imaging atmospheric Cherenkov telescopes. The emission mechanism for the VHE spectral component is not fully understood, and its detection offers important constraints for GRB physics. This review provides a brief overview of the different leptonic and hadronic mechanisms capable of producing a VHE emission in GRBs. The same mechanisms possibly give rise to the high-energy spectral component seen during the prompt emission of many Fermi-LAT GRBs. Possible origins of its delayed onset and long duration well into the afterglow phase, with implications for the emission region and relativistic collisionless shock physics, are discussed. Key results for using GRBs as ideal probes for constraining models of extra-galactic background light and intergalactic magnetic fields, as well as for testing Lorentz invariance violation, are presented.

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“…To tackle these challenges, among others, an ecosystem of numerous complimentary services has been established over the last decades. For a review of high-energy alerts in the multimessenger era, see Dorner et al (2021).…”

Section: Transient Alerts In Multimessenger Astronomymentioning

confidence: 99%

Realtime alerts of the transient sky on mobile devices

Reichherzer¹,

Schüßler²,

Lefranc³

et al. 2021

Preprint

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Follow-up observations of transient events are crucial in multimessenger astronomy. We present Astro-COLIBRI as a tool that informs users about flaring events in real-time via push notifications on their mobile phones, thus contributing to enhanced coordination of follow-up observations. We show the software's architecture that comprises a REST API, both a static and a real-time database, a cloud-based alert system, as well as a website 1 and apps for iOS and Android as clients for users. The latter provide a graphical representation with a summary of the relevant data to allow for the fast identification of interesting phenomena along with an assessment of observing conditions at a large selection of observatories around the world in real-time.

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High-Energy Alerts in the Multi-Messenger Era

Cited by 7 publications

References 102 publications

Astro-COLIBRI 2—An Advanced Platform for Real-Time Multi-Messenger Discoveries

Astro-COLIBRI 2—An Advanced Platform for Real-Time Multi-Messenger Discoveries

Gamma-Ray Bursts at TeV Energies: Theoretical Considerations

Realtime alerts of the transient sky on mobile devices

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