Showing 2025 · astro-ph.GAShow all

14 papers · 2 filters

astro-ph.GA2025

The MAGPI Survey: forward modelled gas-phase metallicity gradients in galaxies at

Yifan Mai, Scott M. Croom, Emily Wisnioski +19

We measure the seeing-deconvolved gas-phase metallicity gradients of 70 star-forming galaxies at from the MAGPI survey and investigate their relationship with galaxy pr…

astro-ph.GA2025★ 4 cited

Multiphase Astrophysics to Unveil the Virgo Environment (MAUVE)

Barbara Catinella, Luca Cortese, Jiayi Sun +26

The Multiphase Astrophysics to Unveil the Virgo Environment (MAUVE) project is a multi-facility programme exploring how dense environments transform galaxies. Combining a VLT/MUSE…

astro-ph.GA2025★ 1 cited

Investigating the imprints of tidal features on simulated galaxy outskirts in LSST-like mock observations

Aman Khalid, Sarah Brough, Garreth Martin +5

Tidal features provide signatures of recent galaxy mergers, offering insights into the role of mergers in galaxy evolution. The Vera C. Rubin Observatory's upcoming Legacy Survey o…

astro-ph.GA2025

Oscillations of dark matter halos in galaxies and their effects on motion of stars

V. V. Flambaum, I. B. Samsonov

Matter and dark matter in galaxies represent two main components linked by the gravitational interaction. Collisions of galaxies may create an offset between the centers of mass of…

astro-ph.GA2025★ 2 cited

The GECKOS Survey: Resolved, multiphase observations of mass-loading and gas density in the galactic wind of NGC 4666

Barbara Mazzilli Ciraulo, D. B. Fisher, R. Elliott +24

We present a multiphase, resolved study of the galactic wind extending from the nearby starburst galaxy NGC 4666. For this we use VLT/MUSE observations from the GECKOS program and…

astro-ph.GA2025★ 4 cited

Hector Galaxy Survey: Data Processing, Quality Control and Early Science

S. Oh, M. L. P. Gunawardhana, S. M. Croom +52

The Hector Galaxy Survey is a new optical integral field spectroscopy (IFS) survey currently using the AAT to observe up to 15,000 galaxies at low redshift (). The Hector…

astro-ph.GA2025★ 2 cited

The GECKOS survey: Jeans anisotropic models of edge-on discs uncover the impact of dust and kinematic structures

T. H. Rutherford, A. Fraser-McKelvie, E. Emsellem +17

The central regions of disc galaxies host a rich variety of stellar structures: nuclear discs, bars, bulges, and boxy-peanut (BP) bulges. These components are often difficult to di…

astro-ph.GA2025★ 1 cited

The GECKOS Survey: revealing the formation history of a barred galaxy via structural decomposition and resolved spectroscopy

A. Fraser-McKelvie, D. A. Gadotti, F. Fragkoudi +10

Disentangling the (co-)evolution of individual galaxy structural components remains a difficult task, owing to the inability to cleanly isolate light from spatially overlapping com…

astro-ph.GA2025★ 3 cited

Clues to inside-out quenching in quiescent galaxies at : Age, Fe-, and Mg-abundance gradients from JWST-SUSPENSE

Chloe M. Cheng, Martje Slob, Mariska Kriek +16

[Abridged] Spatially resolved stellar populations of massive quiescent galaxies at cosmic noon provide powerful insights into quenching and assembly mechanisms. Previous photometri…

astro-ph.GA2025★ 1 cited

The intragroup light in KiDS+GAMA groups: A stacking analysis

S. L. Ahad, H. Hoekstra, Y. M. Bahé +4

Galaxy groups and clusters assembled through dynamical interactions of smaller systems, resulting in the formation of a diffuse stellar halo known as the intragroup or intracluster…

astro-ph.GA2025★ 1 cited

Sifting for a Stream: The Morphology of the Stellar Stream

Benjamin Cohen, Alexander P. Ji, Peter S. Ferguson +18

Stellar streams are sensitive laboratories for understanding the small-scale structure in our Galaxy's gravitational field. Here, we analyze the morphology of the stellar st…

astro-ph.GA2025★ 9 cited

Intracluster light is a biased tracer of the dark matter distribution in clusters

J. Butler, G. Martin, N. A. Hatch +3

The diffuse stellar component of galaxy clusters known as intracluster light (ICL) has been proposed as an observable tracer of the cluster's dark matter (DM) halo. Assessing its r…

astro-ph.GA2025★ 5 cited

The GALAH survey: Improving chemical abundances using star clusters

Janez Kos, Sven Buder, Kevin L. Beeson +18

Large spectroscopic surveys aim to consistently compute stellar parameters of very diverse stars while minimizing systematic errors. We explore the use of stellar clusters as bench…

astro-ph.GA2025★ 1 cited

The MAGPI Survey: the subtle role of environment and not-so-subtle impact of generations of stars on galaxy dynamics

Caroline Foster, Sabine Bellstedt, Francesco DEugenio +23

The stellar age and mass of galaxies have been suggested as the primary determinants for the dynamical state of galaxies, with environment seemingly playing no or only a very minor…