Multi Order Coverage data structure to plan multi-messenger observations

Greco, G.; Punturo, M.; Allen, M. G.; Nebot, A.; Fernique, P.; Baumann, Matthieu; Pineau, F. X.; Boch, T.; Derriére, S.; Branchesi, M.; Bawaj, M.; Vocca, H.

doi:10.1016/j.ascom.2022.100547

Cited by 3 publications

(2 citation statements)

References 36 publications

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“…The new capabilities were applied by EGO-Virgo and resulted in a journal paper "Multi Order Coverage data structure to plan multi-messenger observations" [12]. The paper includes an interactive python notebook and on-line video tutorial materials, both of which were used in the ESCAPE training event the '2nd Science with interoperable data school' the areas of radio astronomy, high energy astronomy and solar physics, and, furthermore, the maturation of the standards and tools for data provenance, in particular for high energy use cases of CTA and KM3Net.…”

Section: The Virtual Observatorymentioning

confidence: 99%

The ESCAPE collaboration

Lamanna

2024

EPJ Web of Conf.

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The European Union funded H2020 ESCAPE project has brought together the ESFRI and other world class research infrastructures in High Energy and Nuclear Physics, Astroparticle Physics, and Astronomy. In the four years of the project many synergistic and collaborative aspects have been highlighted and explored, from pure technical collaboration on common solutions for data management, AAI, and workflows, through development of new tools, such as AI/ML codes, and in education and training, for example in the area of research software and citizen science. In addition, the project has shown that the scientific communities have a lot in common, can act as a single voice towards the funding agencies, the European Commission, and other key programmes such as the implementation of ESOC (European Open Science Cloud). Consequently, ESCAPE partners consider forming a long-term international open collaboration that would exist independently of specific project funding, that can maintain the synergistic aspects of the cluster scientific communities. This work highlights the ESCAPE achievements and outlines some of the goals of the new collaboration.

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Section: The Virtual Observatorymentioning

confidence: 99%

The ESCAPE collaboration

Lamanna

2024

EPJ Web of Conf.

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“…This approach has been exploited either to generate a map efficiently, as a compression algorithm for storage or for faster querying (Fernique et al 2015;Singer & Price 2016;Youngren & Petty 2017). It has also been utilized by the multiorder coverage (MOC) map International Virtual Observatory Alliance (IVOA) standard (Fernique et al 2019) to specify arbitrary sky regions, which has been shown useful for the planning of multimessenger observations (Greco et al 2022). The MOC standard was recently generalized by associating a value to each pixel of a full-coverage map, and is now used to distribute LIGO-Virgo gravitational wave sky localizations.…”

Section: Introductionmentioning

confidence: 99%

Multiresolution HEALPix Maps for Multiwavelength and Multimessenger Astronomy

Martínez-Castellanos¹,

Singer²,

Burns³

et al. 2022

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HEALPix—the Hierarchical Equal Area isoLatitude Pixelization—has become a standard in high-energy and gravitational wave astronomy. Originally developed to improve the efficiency of all-sky Fourier analyses, it is now also utilized to share sky localization information. When used for this purpose the need for a homogeneous all-sky grid represents a limitation that hinders a broader community adoption. This work presents mhealpy, a Python library able to create, handle and analyze multiresolution maps, a solution to this problem. It supports efficient pixel querying, arithmetic operations between maps, adaptive mesh refinement, plotting, and serialization into FITS—Flexible Image Transport System—files. This HEALPix extension makes it suitable to represent highly resolved region, resulting in a convenient common format to share spatial information for joint multiwavelength and multimessenger analyses.

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GLADEnet: A progressive web app for multi-messenger cosmology and electromagnetic follow-ups of gravitational-wave sources

Brozzetti,

Dálya,

Greco

et al. 2024

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Multi-messenger astronomy is an emerging field of research aimed at unravelling the physics governing astrophysical transients. GW170817 stands out as the first multi-messenger observation of the coalescence of a binary system of neutron stars, detected by the LIGO and Virgo gravitational-wave interferometers, along with space- and ground-based electromagnetic telescopes. It is a striking example of how multi-messenger observations significantly enhance our understanding of the physics of compact objects, relativistic outflows, and nucleosynthesis. It shows a new way of making cosmology and has the potential to resolve the tension between different measurements of the expansion rate of the Universe. To optimise multi-messenger observational strategies, to evaluate the efficiency of the searches for counterparts, and to identify the host galaxy of the source in a large sky localisation, information about the volumes of galaxies within the gravitational-wave localisation is of paramount importance. This requires the use of galaxy catalogues and appropriate knowledge of their completeness. Here, we describe a new interactive web tool named GLADEnet that allows us to identify catalogued galaxies and to assess the incompleteness of the catalogue of galaxies in real time across the gravitational-wave sky localisation. This measure is of particular importance when using catalogues such as the GLADE catalogue (Galaxy List for the Advanced Detector Era), which includes a collection of various catalogues that make completeness differ across different regions of the sky. We discuss the analysis steps to defining a completeness coefficient and provide a comprehensive guide on how to use the web app, detailing its functionalities. The app is geared towards managing the vast collection of over 22 million objects in GLADE. The completeness coefficient and the GLADE galaxy list will be disseminated in real time via GLADEnet https://virgo.pg.infn.it/gladenet/catalogs/ powered by the Virtual Observatory (VO) standard and tools.

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Multi Order Coverage data structure to plan multi-messenger observations

Cited by 3 publications

References 36 publications

The ESCAPE collaboration

The ESCAPE collaboration

Multiresolution HEALPix Maps for Multiwavelength and Multimessenger Astronomy

GLADEnet: A progressive web app for multi-messenger cosmology and electromagnetic follow-ups of gravitational-wave sources

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