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19932026
most citedThe Gaia mission

7.1k citations

Showing 2024 · astro-ph.IMShow all

11 papers · 2 filters

astro-ph.IM2024★ 2 cited

Extracting the Epoch of Reionization Signal with 3D U-Net Neural Networks Using Data-driven Systematic Effect Model

Li-Yang Gao, Léon V. E. Koopmans, Florent G. Mertens +11

Neutral hydrogen (HI) serves as a crucial probe for the Cosmic Dawn and the Epoch of Reionization (EoR). Actual observations of the 21-cm signal often encounter challenges such as…

astro-ph.IM2024★ 3 cited

High-pass Filter Periodogram: An Improved Power Spectral Density Estimator for Unevenly Sampled Data

Ezequiel Albentosa-Ruiz, Nicola Marchili

Accurate time series analysis is essential for studying variable astronomical sources, where detecting periodicities and characterizing power spectral density (PSD) are crucial. Th…

astro-ph.IM2024★ 30 cited

First Very Long Baseline Interferometry Detections at 870μm

Alexander W. Raymond, Sheperd S. Doeleman, Keiichi Asada +276

The first very long baseline interferometry (VLBI) detections at 870m wavelength (345GHz frequency) are reported, achieving the highest diffraction-limited angular resolutio…

astro-ph.IM2024★ 5 cited

Finding radio transients with anomaly detection and active learning based on volunteer classifications

Alex Andersson, Chris Lintott, Rob Fender +9

In this work we explore the applicability of unsupervised machine learning algorithms to finding radio transients. Facilities such as the Square Kilometre Array (SKA) will provide…

astro-ph.IM2024★ 33 cited

Selective Dynamical Imaging of Interferometric Data

Joseph Farah, Peter Galison, Kazunori Akiyama +16

Recent developments in very long baseline interferometry (VLBI) have made it possible for the Event Horizon Telescope (EHT) to resolve the innermost accretion flows of the largest…

astro-ph.IM2024★ 7 cited

fast-resolve: Fast Bayesian Radio Interferometric Imaging

Jakob Roth, Philipp Frank, Hertzog L. Bester +3

Context: Interferometric imaging is algorithmically and computationally challenging as there is no unique inversion from the measurement data back to the sky maps, and the datasets…

astro-ph.IM2024★ 45 cited

Euclid: Early Release Observations -- Programme overview and pipeline for compact- and diffuse-emission photometry

J. -C. Cuillandre, E. Bertin, M. Bolzonella +260

The Euclid ERO showcase Euclid's capabilities in advance of its main mission, targeting 17 astronomical objects, from galaxy clusters, nearby galaxies, globular clusters, to star-f…

astro-ph.IM2024★ 103 cited

Euclid. II. The VIS Instrument

Euclid Collaboration, M. S. Cropper, A. Al-Bahlawan +432

This paper presents the specification, design, and development of the Visible Camera (VIS) on the ESA Euclid mission. VIS is a large optical-band imager with a field of view of 0.5…

astro-ph.IM2024★ 9 cited

Characterization of the decametre sky at subarcminute resolution

C. Groeneveld, R. J. van Weeren, E. Osinga +11

The largely unexplored decameter radio band (10-30 MHz) provides a unique window for studying a range of astronomical topics, such as auroral emission from exoplanets, inefficient…

astro-ph.IM2024★ 1 cited

SDHDF: A new file format for spectral-domain radio astronomy data

L. J. Toomey, G. Hobbs, D. C. Price +17

Radio astronomy file formats are now required to store wide frequency bandwidths and multiple simultaneous receiver beams and must be able to account for versatile observing modes…

astro-ph.IM2024★ 33 cited

Hydrogen Epoch of Reionization Array (HERA) Phase II Deployment and Commissioning

Lindsay M. Berkhout, Daniel C. Jacobs, Zuhra Abdurashidova +93

This paper presents the design and deployment of the Hydrogen Epoch of Reionization Array (HERA) phase II system. HERA is designed as a staged experiment targeting 21 cm emission m…