Leiden University

The Competing Influence of Ram Pressure and Tidal Interaction in NGC 2276

Luka Matijević, Neven Tomičić, Antonino Marasco +9

The evolution of galaxies in groups is profoundly influenced by a variety of physical processes, with ram pressure and tidal interactions playing pivotal roles in shaping their str…

Archaeological investigation of galaxies' evolutionary history in the cosmic middle ages

Anna R. Gallazzi, Stefano Zibetti, Mark Sargent +14

The cosmic Middle Ages, spanning the last 8-10 Gyr of the Universe, is a critical period in which massive early-formed systems coexist with global star formation quenching in less…

Non-detection of J1407b in ALMA Band 7 Observations

Pamela Klaassen, Matthew Kenworthy, Eric Mamajek +4

We report on ALMA Band 7 continuum observations towards the star 1SWASP J140747.93-394542.6 taken in mid 2024. These observations were a follow-up of a previous detection of an emi…

A sensitivity analysis of interstellar ice chemistry in astrochemical models

Tobias M. Dijkhuis, Thanja Lamberts, Serena Viti +1

Astrochemical models are essential to bridge the gap between the timescales of reactions, experiments, and observations. Ice chemistry in these models experiences a large computati…

The MAGPI Survey: forward modelled gas-phase metallicity gradients in galaxies at $z \sim 0.3$

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

We measure the seeing-deconvolved gas-phase metallicity gradients of 70 star-forming galaxies at $z \sim 0.3$ from the MAGPI survey and investigate their relationship with galaxy pr…

Chemical complexity in star formation induced by stellar feedback: cores shock-formed by the supernova remnant W44

G. Cosentino, I. Jiménez-Serra, F. Fontani +8

Low-velocity shocks from Supernova Remnants (SNRs) may set the physical and chemical conditions of star formation in molecular clouds. Recent evidence suggests that the Sun might h…

Experimental investigation of O2 diffusion and entrapment in interstellar amorphous solid water (ASW)

Lina Coulaud, Julia C. Santos, Ko-Ju Chuang

Interstellar ices are mainly composed of amorphous solid water (ASW) containing small amounts of hypervolatiles, such as O2, whose diffusion-limited reactions play a key role in sp…

Infrared emission from $z \sim 6.5$ quasar host galaxies: a direct estimate of dust physical properties

M. Costa, R. Decarli, F. Pozzi +6

Quasars at the dawn of Cosmic Time ( $z > 6$ ) are fundamental probes to investigate the early co-evolution of supermassive black holes and their host galaxy. Nevertheless, their infra…

Unveiling the population of massive quenched galaxies at $z \geq 2$ in the COLIBRE simulations - I. Galaxy demographics

Ángel Chandro-Gómez, Claudia del P. Lagos, Chris Power +14

The James Webb Space Telescope has uncovered a substantial population of Massive ( $M_{⋆} > 1 0^{10} M_{⊙}$ ), Quenched Galaxies (MQGs) in the early Universe ($z \ge…

A Spatially Resolved Evolutionary Sequence of Multi-wavelength AGN Host Galaxies

Gaoxiang Jin, Guinevere Kauffmann, Y. Sophia Dai +2

We study the spatially resolved star formation, gas ionisation, and outflow properties of 1813 active galactic nuclei (AGNs) from the MaNGA survey, which we classify into infrared…

Kennicutt-Schmidt relation of galaxies over 13 billion years in the COLIBRE hydrodynamical simulations

Claudia del P. Lagos, Joop Schaye, Matthieu Schaller +16

We investigate the correlation between star formation rate (SFR) surface density and gas surface density (known as the Kennicutt-Schmidt, KS, relation) at kiloparsec (kpc) scales a…

Dynamical disequilibrium in dwarf galaxies: rethinking gas dynamics, rotation curves, and dark matter inference

Diego Dado, Kyle A. Oman, Katherine E. Harborne +9

We quantify departures from hydrodynamical and centrifugal equilibrium in the gas discs of low-mass ( $1 0^{10.75} < M_{200c} / M_{⊙} < 1 0^{11}$ ) galaxies from the COLIBR…

Euclid Quick Data Release (Q1): Euclid spectroscopy of quasars. 1. Identification and redshift determination of 3500 bright quasars

Euclid Collaboration, Y. Fu, R. Bouwens +354

The slitless spectroscopy mode of the NISP onboard Euclid has enabled efficient spectroscopy of objects within a large FoV. We present a large and homogeneous sample of bright quas…

astro-ph.GA2025★ 6 cited

ALMAGAL VI. The spatial distribution of dense cores during the evolution of cluster-forming massive clump

E. Schisano, S. Molinari, A. Coletta +51

High-mass stars and star clusters form from the fragmentation of massive dense clumps driven by gravity, turbulence, and magnetic fields. The ALMAGAL project observed $\sim 1000$ cl…

MIRI spectrophotometry of GN-z11: Detection and nature of an optical red continuum component

A. Crespo Gómez, L. Colina, P. G. Pérez-González +16

We present new MIRI F560W, F770W and F1000W imaging of GN-z11, extending the previous rest-frame coverage from 0.38 to 0.86 $μ$ m. We report significant detections (14 $σ$ ) in the F56…

Ripples in the baryon to dark matter ratio in $Λ$ CDM: implications for galaxy formation

Owen Jessop, Adrian Jenkins, Andrew Pontzen +3

We use the FLAMINGO galaxy formation model to quantify the impact of baryon-CDM isocurvature perturbations on galaxy formation in $Λ$ CDM. In linear theory, these perturbations repr…

Euclid: The first statistical census of dusty and massive objects in the ERO/Perseus field

G. Girardi, A. Grazian, G. Rodighiero +175

Our comprehension of the history of star formation at $z > 3$ relies on rest-frame UV observations, yet this selection misses the most dusty and massive sources, yielding an incomple…

Euclid preparation: LXXXI. The impact of nonparametric star formation histories on spatially resolved galaxy property estimation using synthetic Euclid images

Euclid Collaboration, A. Nersesian, Abdurro'uf +283

We analyzed the spatially resolved and global star formation histories (SFHs) for a sample of 25 TNG50-SKIRT Atlas galaxies to assess the feasibility of reconstructing accurate SFH…

Euclid Quick Data Release (Q1): Hunting for luminous z > 6 galaxies in the Euclid Deep Fields -- forecasts and first bright detections

Euclid Collaboration, N. Allen, P. A. Oesch +309

The evolution of the rest-frame ultraviolet luminosity function (UV LF) is a powerful probe of early star formation and stellar mass build-up. At z > 6, its bright end (MUV < -21)…

astro-ph.GA2025★ 8 cited

PROJECT-J: the shocking H2 outflow from HH46

Maria Gabriela Navarro, Brunella Nisini, Teresa Giannini +14

We analyze the H2 emission observed in the HH46 Class I system as part of PROJECT-J (Protostellar Jets Cradle Tested with JWST), to investigate the origin and excitation of the war…

Transferring Data from a Voronoi Mesh to an Adaptive Cartesian Grid in Pursuit of Self-consistent Top-down Star Formation

Sean C. Lewis, Brooke Polak, Mordecai-Mark Mac Low +5

Unstructured Voronoi mesh simulations offer many advantages for simulating self-gravitating gas dynamics on galactic scales. Adaptive mesh refinement (AMR) can be a powerful tool f…

Euclid Quick Data Release (Q1): Identification of massive galaxy candidates at the end of the Epoch of Reionisation

Euclid Collaboration, R. Navarro-Carrera, K. I. Caputi +295

Probing the presence and properties of massive galaxies at high redshift is one of the most critical tests for galaxy formation models. In this work, we search for galaxies with st…

astro-ph.GA2025★ 5 cited

ALMAGAL V. Relations between the core populations and the parent clump physical properties

D. Elia, A. Coletta, S. Molinari +54

Context. The fragmentation of massive molecular clumps into smaller, potentially star-forming cores plays a key role in the processes of high-mass star formation. The ALMAGAL proje…