Classification of compact radio sources in the Galactic plane with supervised machine learning

no code implementations • 23 Feb 2024 • S. Riggi, G. Umana, C. Trigilio, C. Bordiu, F. Bufano, A. Ingallinera, F. Cavallaro, Y. Gordon, R. P. Norris, G. Gürkan, P. Leto, C. Buemi, S. Loru, A. M. Hopkins, M. D. Filipović, T. Cecconello

To this aim, we produced a curated dataset of ~20, 000 images of compact sources of different astronomical classes, obtained from past radio and infrared surveys, and novel radio data from pilot surveys carried out with the Australian SKA Pathfinder (ASKAP).

Pathfinder

Evolutionary Map of the Universe (EMU):Compact radio sources in the SCORPIO field towards the Galactic plane

no code implementations • 11 Jan 2021 • S. Riggi, G. Umana, C. Trigilio, F. Cavallaro, A. Ingallinera, P. Leto, F. Bufano, R. P. Norris, A. M. Hopkins, M. D. Filipović, H. Andernach, J. Th. van Loon, M. J. Michałowski, C. Bordiu, T. An, C. Buemi, E. Carretti, J. D. Collier, T. Joseph, B. S. Koribalski, R. Kothes, S. Loru, D. McConnell, M. Pommier, E. Sciacca, F. Schilliró, F. Vitello, K. Warhurst, M. Whiting

We present observations of a region of the Galactic plane taken during the Early Science Program of the Australian Square Kilometre Array Pathfinder (ASKAP).

Pathfinder

The Abell 3391/95 galaxy cluster system: A 15 Mpc intergalactic medium emission filament, a warm gas bridge, infalling matter clumps, and (re-) accelerated plasma discovered by combining SRG/eROSITA data with ASKAP/EMU and DECam data

no code implementations • 15 Dec 2020 • T. H. Reiprich, A. Veronica, F. Pacaud, M. E. Ramos-Ceja, N. Ota, J. Sanders, M. Kara, T. Erben, M. Klein, J. Erler, J. Kerp, D. N. Hoang, M. Brüggen, J. Marvil, L. Rudnick, V. Biffi, K. Dolag, J. Aschersleben, K. Basu, H. Brunner, E. Bulbul, K. Dennerl, D. Eckert, M. Freyberg, E. Gatuzz, V. Ghirardini, F. Käfer, A. Merloni, K. Migkas, K. Nandra, P. Predehl, J. Robrade, M. Salvato, B. Whelan, A. Diaz-Ocampo, D. Hernandez-Lang, A. Zenteno, M. J. I. Brown, J. D. Collier, J. M. Diego, A. M. Hopkins, A. Kapinska, B. Koribalski, T. Mroczkowski, R. P. Norris, A. O'Brien, E. Vardoulaki

We used dedicated SRG/eROSITA X-ray, ASKAP/EMU radio, and DECam optical observations of a 15 sq. deg region around the interacting galaxy cluster system A3391/95 to study the warm-hot gas in cluster outskirts and filaments, the surrounding large-scale structure and its formation process.

Cosmology and Nongalactic Astrophysics High Energy Astrophysical Phenomena

Testing Convolutional Neural Networks for finding strong gravitational lenses in KiDS

no code implementations • 12 Jul 2018 • C. E. Petrillo, C. Tortora, S. Chatterjee, G. Vernardos, L. V. E. Koopmans, G. Verdoes Kleijn, N. R. Napolitano, G. Covone, L. S. Kelvin, A. M. Hopkins

We have tested the ConvNet lens-finders on a sample of 21789 Luminous Red Galaxies (LRGs) selected from KiDS and we have analyzed and compared the results with our previous ConvNet lens-finder on the same sample.

Astrophysics of Galaxies Instrumentation and Methods for Astrophysics