activity
20242026
collaborators

7 papers

astro-ph.GA2026

MIGHTEE-HI: Environmental effects of cosmic filaments on extragalactic HI detections in the COSMOS and XMM-LSS fields

Seoyoung Lyla Jung, Madalina N. Tudorache, Matt J. Jarvis +8

Cosmic filaments have been recognised as influencing galaxy evolution, but their connection to galactic cold gas reservoirs is elusive, particularly at low redshifts. We investigat…

astro-ph.GA2026

MIGHTEE-HI / LADUMA: Investigating the link between baryons and dynamics with 130 resolved HI-selected galaxies

Andreea A Vărăşteanu, Andreea A Vărăşteanu, Matt J. Jarvis +16

The baryonic Tully-Fisher relation (bTFR) and the radial acceleration relation (RAR) link the observed dynamics in galaxies to that expected from their baryonic mass distributions.…

astro-ph.GA2026

MIGHTEE-HI: Mass Models and Dark Matter properties

Anastasia A. Ponomareva, P. E. Mancera Piña, A. A. Vărăşteanu +17

Measuring galaxy rotation curves is critical for inferring the properties of dark-matter haloes in the Lambda Cold Dark Matter (CDM) paradigm. We present HI rotation curves and…

astro-ph.GA2025

MIGHTEE-HI: The radial acceleration relation with resolved stellar mass measurements

Andreea A. Vărăşteanu, Matt J. Jarvis, Anastasia A. Ponomareva +8

The radial acceleration relation (RAR) is a fundamental relation linking baryonic and dark matter in galaxies by relating the observed acceleration derived from dynamics to the one…

astro-ph.GA2025

The galaxy-halo connection of disc galaxies over six orders of magnitude in stellar mass

Pavel E. Mancera Piña, Justin I. Read, Stacy Kim +5

(Abridged) The relations between stellar (), gas (), baryonic (), and dark matter halo mass () provide unique cons…

astro-ph.GA2025

WALLABY Pilot Survey & ASymba: Comparing HI Detection Asymmetries to the SIMBA Simulation

Mathieu Perron-Cormier, Nathan Deg, Kristine Spekkens +15

An avenue for understanding cosmological galaxy formation is to compare morphometric parameters in observations and simulations of galaxy assembly. In this second paper of the ASym…