activity
20232026
collaborators

5 papers

astro-ph.GA2026

The size of the HI disk across different environments: isolated, compact groups, clusters, and pairs

R. Ianjamasimanana, L. Verdes-Montenegro, K. M. Hess +8

The 21 cm line of atomic hydrogen (HI) is a sensitive tracer of the outer disk of galaxies, where environmental signatures are most apparent. The relative extent of HI disks compar…

astro-ph.GA2025

The Distribution of Atomic Hydrogen in the Host Galaxies of FRBs

Hugh Roxburgh, Marcin Glowacki, Clancy W. James +14

We probe the atomic hydrogen (HI) emission from the host galaxies of fast radio bursts (FRBs) to investigate the emerging trend of disturbance and asymmetry in the population. Quad…

astro-ph.GA2025

MeerKAT view of Hickson Compact Groups: II. HI deficiency in the core and surrounding regions

A. Sorgho, L. Verdes-Montenegro, R. Ianjamasimanana +25

Hickson compact groups (HCGs) offer an ideal environment for investigating galaxy transformation as a result of interactions. It has been established that the evolutionary sequence…

astro-ph.GA2025

WALLABY Pilot Survey: kNN identification of perturbed galaxies through HI morphometrics

B. W. Holwerda, Helga Dénes, J. Rhee +11

Galaxy morphology in stellar light can be described by a series of "non-parametric" or "morphometric" parameters, such as concentration-asymmetry-smoothness, Gini, , and Se…

astro-ph.GA2023

The AMIGA sample of isolated galaxies -- Effects of Environment on Angular momentum

A. Sorgho, L. Verdes-Montenegro, K. M. Hess +4

We investigate the relationship between the baryonic angular momentum and mass for a sample of 36 isolated disc galaxies with resolved HI kinematics and infrared WISE photometry dr…