Machine learning for observational cosmology

K Moriwaki, T Nishimichi… - Reports on Progress in …, 2023 - iopscience.iop.org
An array of large observational programs using ground-based and space-borne telescopes
is planned in the next decade. The forthcoming wide-field sky surveys are expected to …

[HTML][HTML] Advances on the morphological classification of radio galaxies: A review

S Ndung'u, T Grobler, SJ Wijnholds… - New Astronomy …, 2023 - Elsevier
Modern radio telescopes will generate, on a daily basis, data sets on the scale of exabytes
for systems like the Square Kilometre Array (SKA). Massive data sets are a source of …

beorn: a fast and flexible framework to simulate the epoch of reionization and cosmic dawn

T Schaeffer, SK Giri, A Schneider - Monthly Notices of the Royal …, 2023 - academic.oup.com
In this study, we introduce beorn (Bubbles during the Epoch of Reionization Numerical
Simulator), a publicly available python code that generates three-dimensional maps of the …

Machine learning astrophysics from 21 cm lightcones: impact of network architectures and signal contamination

D Prelogović, A Mesinger, S Murray… - Monthly Notices of …, 2022 - academic.oup.com
Imaging the cosmic 21 cm signal will map out the first billion years of our Universe. The
resulting 3D lightcone (LC) will encode the properties of the unseen first galaxies and …

Exploring the cosmic 21-cm signal from the epoch of reionization using the wavelet scattering transform

B Greig, YS Ting, AA Kaurov - Monthly Notices of the Royal …, 2022 - academic.oup.com
Detecting the cosmic 21-cm signal during the Epoch of Reionization and Cosmic Dawn will
reveal insights into the properties of the first galaxies and advance cosmological parameter …

Cosmological forecast of the 21-cm power spectrum with the halo model of reionization

A Schneider, T Schaeffer, SK Giri - Physical Review D, 2023 - APS
The 21-cm power spectrum of reionization is a promising probe for cosmology and
fundamental physics. Exploiting this new observable, however, requires fast predictors …

Inferring astrophysical parameters using the 2D cylindrical power spectrum from reionization

B Greig, D Prelogović, Y Qin, YS Ting… - Monthly Notices of the …, 2024 - academic.oup.com
Enlightening our understanding of the first galaxies responsible for driving reionization
requires detecting the 21-cm signal from neutral hydrogen. Interpreting the wealth of …

The 21-cm signal during the end stages of reionization

SK Giri, M Bianco, T Schaeffer, IT Iliev… - Monthly Notices of …, 2024 - academic.oup.com
During the epoch of reionization (EoR), the 21-cm signal allows direct observation of the
neutral hydrogen (H i) in the intergalactic medium (IGM). In the post-reionization era, this …

The problem of dust attenuation in photometric decomposition of edge-on galaxies and possible solutions

SS Savchenko, DM Poliakov… - Monthly Notices of …, 2023 - academic.oup.com
The presence of dust in spiral galaxies affects the ability of photometric decompositions to
retrieve the parameters of their main structural components. For galaxies in an edge-on …

Persistent topology of the reionization bubble network–II. Evolution and classification

W Elbers, R van de Weygaert - Monthly Notices of the Royal …, 2023 - academic.oup.com
We study the topology of the network of ionized and neutral regions that characterized the
intergalactic medium during the Epoch of Reionization. Our analysis uses the formalism of …