Sampling-based accuracy testing of posterior estimators for general inference

P Lemos, A Coogan, Y Hezaveh… - International …, 2023 - proceedings.mlr.press
Parameter inference, ie inferring the posterior distribution of the parameters of a statistical
model given some data, is a central problem to many scientific disciplines. Posterior …

The edges of galaxies: Tracing the limits of star formation

N Chamba, I Trujillo, JH Knapen - Astronomy & Astrophysics, 2022 - aanda.org
The outskirts of galaxies have been studied from multiple perspectives for the past few
decades. However, it is still unknown if all galaxies have clear-cut edges similar to everyday …

Realistic galaxy image simulation via score-based generative models

MJ Smith, JE Geach, RA Jackson… - Monthly Notices of …, 2022 - academic.oup.com
We show that a denoising diffusion probabilistic model (DDPM), a class of score-based
generative model, can be used to produce realistic mock images that mimic observations of …

AutoProf–I. An automated non-parametric light profile pipeline for modern galaxy surveys

CJ Stone, N Arora, S Courteau… - Monthly Notices of the …, 2021 - academic.oup.com
We present an automated non-parametric light profile extraction pipeline called autoprof. All
steps for extracting surface brightness (SB) profiles are included in autoprof, allowing …

Posterior samples of source galaxies in strong gravitational lenses with score-based priors

A Adam, A Coogan, N Malkin, R Legin… - arXiv preprint arXiv …, 2022 - arxiv.org
Inferring accurate posteriors for high-dimensional representations of the brightness of
gravitationally-lensed sources is a major challenge, in part due to the difficulties of …

MaNGA galaxy properties–II. A detailed comparison of observed and simulated spiral galaxy scaling relations

N Arora, S Courteau, C Stone… - Monthly Notices of the …, 2023 - academic.oup.com
We present a catalogue of dynamical properties for 2368 late-type galaxies from the MaNGA
survey. The latter complements the catalogue of photometric properties for the same sample …

The impact of environment on size: Galaxies are 50% smaller in the Fornax Cluster compared to the field

N Chamba, MJ Hayes - Astronomy & Astrophysics, 2024 - aanda.org
Size is a fundamental parameter for measuring the growth of galaxies and the role of the
environment on their evolution. However, the conventional size definitions used for this …

Probing galaxy evolution from z = 0 to z ≃ 10 through galaxy scaling relations in three L-galaxies flavours

A Vani, M Ayromlou, G Kauffmann… - Monthly Notices of the …, 2025 - academic.oup.com
We present a comprehensive examination of the three latest versions of the l-galaxies semi-
analytic galaxy formation model, focusing on the evolution of galaxy properties across a …

MIGHTEE-H i: the baryonic Tully–Fisher relation over the last billion years

AA Ponomareva, W Mulaudzi, N Maddox… - Monthly Notices of …, 2021 - academic.oup.com
Using a sample of 67 galaxies from the MeerKAT International GigaHertz Tiered
Extragalactic Exploration Survey Early Science data, we study the H i-based baryonic Tully …

Discovery of a planar black hole mass scaling relation for spiral galaxies

BL Davis, Z Jin - The Astrophysical Journal Letters, 2023 - iopscience.iop.org
Supermassive black holes (SMBHs) are tiny in comparison to the galaxies they inhabit, yet
they manage to influence and coevolve along with their hosts. Evidence of this mutual …