RG-CAT: Detection Pipeline and Catalogue of Radio Galaxies in the EMU Pilot Survey

no code implementations • 21 Mar 2024 • Nikhel Gupta, Ray P. Norris, Zeeshan Hayder, Minh Huynh, Lars Petersson, X. Rosalind Wang, Andrew M. Hopkins, Heinz Andernach, Yjan Gordon, Simone Riggi, Miranda Yew, Evan J. Crawford, Bärbel Koribalski, Miroslav D. Filipović, Anna D. Kapinśka, Stanislav Shabala, Tessa Vernstrom, Joshua R. Marvil

The Gal-DINO network is trained and evaluated on approximately 5, 000 visually inspected radio galaxies and their infrared hosts, encompassing both compact and extended radio morphologies.

Pathfinder

RADiff: Controllable Diffusion Models for Radio Astronomical Maps Generation

no code implementations • 5 Jul 2023 • Renato Sortino, Thomas Cecconello, Andrea DeMarco, Giuseppe Fiameni, Andrea Pilzer, Andrew M. Hopkins, Daniel Magro, Simone Riggi, Eva Sciacca, Adriano Ingallinera, Cristobal Bordiu, Filomena Bufano, Concetto Spampinato

We evaluate the effectiveness of this approach by training a semantic segmentation model on a real dataset augmented in two ways: 1) using synthetic images obtained from real masks, and 2) generating images from synthetic semantic masks.

Astronomy object-detection +2

Radio astronomical images object detection and segmentation: A benchmark on deep learning methods

no code implementations • 8 Mar 2023 • Renato Sortino, Daniel Magro, Giuseppe Fiameni, Eva Sciacca, Simone Riggi, Andrea DeMarco, Concetto Spampinato, Andrew M. Hopkins, Filomena Bufano, Francesco Schillirò, Cristobal Bordiu, Carmelo Pino

In recent years, deep learning has been successfully applied in various scientific domains.

Astronomy Computational Efficiency +5

GAMA/DEVILS: Constraining the cosmic star-formation history from improved measurements of the 0.3-2.2 micron Extragalactic Background Light

no code implementations • 24 Feb 2021 • Soheil Koushan, Simon P. Driver, Sabine Bellstedt, Luke J. Davies, Aaron S. G. Robotham, Claudia del P Lagos, Abdolhosein Hashemizadeh, Danail Obreschkow, Jessica E. Thorne, Malcolm Bremer, B. W. Holwerda, Andrew M. Hopkins, Matt J. Jarvis, Malgorzata Siudek, Rogier A. Windhorst

We present a revised measurement of the optical extragalactic background light (EBL), based on the contribution of resolved galaxies to the integrated galaxy light (IGL).

Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies