activity
20202026
most citedFirst upper limits on the 21 cm signal power spectrum from cosmic dawn from one night of observations with NenuFAR

59 citations · 243 across the 23 of their papers we have counts for

collaborators
Showing astro-ph.IMShow all

9 papers · 1 filter

astro-ph.IM2026

Development of TIFUUN: Terahertz Integral Field Units with Universal Nanotechnology

Akira Endo, Tom J. L. C. Bakx, Jochem J. A. Baselmans +50

TIFUUN (THz Integral Field Units with Universal Nanotechnology) is an ultra-wideband mm-submm wave imaging spectrometer that capitalizes on the highly scalable integrated supercond…

astro-ph.IM2026

gateau: an observation simulator for ground-based submillimeter astronomy with integral field units and kinetic inductance detectors

A. Moerman, N. Soshnin, S. A. Brackenhoff +7

Submillimeter (submm) integral field units (IFUs) utilising kinetic inductance detectors (KIDs) are a promising instrument architecture for the study of galaxies, galaxy clusters,…

astro-ph.IM2025★ 1 cited

The impact of lunar topography on the 21-cm power spectrum for grid-based arrays : Insights for the Dark-ages EXplorer (DEX)

S. Ghosh, L. V. E. Koopmans, C. Brinkerink +17

The Dark Ages (DA) provides a crucial window into the physics of the infant Universe, with the 21-cm signal offering the only direct probe for mapping out the three-dimensional dis…

astro-ph.IM2025★ 4 cited

Robust direction-dependent gain-calibration of beam-modelling errors far from the target field

S. A. Brackenhoff, A. R. Offringa, M. Mevius +8

Many astronomical questions require deep, wide-field observations at low radio frequencies. Phased arrays like LOFAR and SKA-low are designed for this, but have inherently unstable…

astro-ph.IM2025★ 9 cited

Square Kilometre Array Science Data Challenge 3a: foreground removal for an EoR experiment

A. Bonaldi, P. Hartley, R. Braun +179

We present and analyse the results of the Science data challenge 3a (SDC3a, https://sdc3.skao.int/challenges/foregrounds), an EoR foreground-removal community-wide exercise organis…

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.IM2023★ 4 cited

A novel radio imaging method for physical spectral index modelling

E. Ceccotti, A. R. Offringa, L. V. E. Koopmans +9

We present a new method, called "forced-spectrum fitting", for physically-based spectral modelling of radio sources during deconvolution. This improves upon current common deconvol…

astro-ph.IM2021★ 20 cited

DESHIMA 2.0: development of an integrated superconducting spectrometer for science-grade astronomical observations

Akio Taniguchi, Tom J. L. C. Bakx, Jochem J. A. Baselmans +32

Integrated superconducting spectrometer (ISS) technology will enable ultra-wideband, integral-field spectroscopy for (sub)millimeter-wave astronomy, in particular, for uncovering t…

astro-ph.IM2021★ 2 cited

TiEMPO: Open-source time-dependent end-to-end model for simulating ground-based submillimeter astronomical observations

Esmee Huijten, Yannick Roelvink, Stefanie A. Brackenhoff +14

The next technological breakthrough in millimeter-submillimeter astronomy is 3D imaging spectrometry with wide instantaneous spectral bandwidths and wide fields of view. The total…