activity
20192026
most citedHot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) IV. A spectral inventory of atoms and molecules in the high-resolution transmission spectrum of WASP-121 b

169 citations · 392 across the 31 of their papers we have counts for

collaborators

32 papers

astro-ph.GA2026

Atomic hydrogen in galaxies in the COLIBRE simulations

Kyle A. Oman, Ruby J. Wright, Andrea Gebek +12

We present an overview of the properties of atomic hydrogen (HI) in galaxies at redshift in the COLIBRE cosmological galaxy formation simulations. COLIBRE directly simulates…

astro-ph.GA2026

The TNG50-SKIRT Atlas: Spatially resolved synthetic galaxies from the ultraviolet to the submillimetre (DR2)

Maarten Baes, Paul Vauterin, Abdurro'uf +20

We present the second data release (DR2) of the TNG50-SKIRT Atlas (TSA), a library of synthetic, spatially resolved galaxy observables. The atlas is constructed by post-processing…

astro-ph.GA2026

The evolution of galaxy dust scaling relations in the COLIBRE simulations

Aswin P. Vijayan, James W. Trayford, Joop Schaye +11

We present dust scaling relations across cosmic time () for galaxies in the COLIBRE cosmological simulations. COLIBRE self-consistently tracks dust production, grow…

astro-ph.GA2026

Cosmological simulations of the high-redshift galaxy population adopting a variable stellar initial mass function

Anna Durrant, Robert A. Crain, Cedric G. Lacey +15

JWST surveys reveal a greater space density of high-redshift UV-bright galaxies than predicted by conventional galaxy formation models. We present results from a cMpc cosmo…

astro-ph.GA2026

The COLIBRE-SKIRT pipeline: Calibration-free dust radiative transfer postprocessing for cosmological simulations

Andrea Gebek, Maarten Baes, Nick Andreadis +16

Context. Three-dimensional dust radiative transfer provides a powerful framework to connect cosmological galaxy simulations to multiwavelength observations. Until recently, in larg…

astro-ph.GA2026

Predicting ionised gas emission in 3D with SKIRT. I. Framework and validation

Anand Utsav Kapoor, Maarten Baes, Aaron Smith +7

Emission lines from ionised gas are key diagnostics of star formation, metallicity, and ionisation conditions in galaxies. Interpreting spatially resolved observations from integra…

astro-ph.GA2026

TODDLERS 2.0: Stellar feedback and observables across diverse IMFs, binary populations, and cloud environments

Anand Utsav Kapoor, Andrea Gebek, Maarten Baes +4

Modeling the feedback-driven evolution of star-forming regions and their multi-wavelength emission is essential for interpreting galaxy observations across cosmic time. TODDLERS co…

astro-ph.GA2026

The TNG50-SKIRT Atlas: Multi-wavelength nonparametric galaxy morphology

Sena Bokona Tulu, Maarten Baes, Angelos Nersesian +5

Context: Galaxy morphology is a fundamental property to describe galaxy evolution. However, the observed morphology of a particular galaxy may depend on the observed wavelength. Ai…

astro-ph.GA2026

The galaxy ultraviolet luminosity function from to in the COLIBRE simulations

Shengdong Lu, Carlos S. Frenk, Cedric G. Lacey +17

JWST has enabled the detection of galaxies in the earliest stages of cosmic history. We compare the ultraviolet luminosity functions (UVLFs) at redshifts predicted by a se…

astro-ph.GA2026

Galaxy luminosity functions from far-UV to submillimetre at in the COLIBRE simulations

Shengdong Lu, Carlos S. Frenk, Cedric G. Lacey +15

We present predictions from the COLIBRE cosmological hydrodynamical simulations of galaxy formation for the present-day galaxy luminosity functions (LFs) at wavelengths ranging fro…

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

Generating LSB-optimised synthetic images for simulated galaxies

Maarten Baes, Peter Camps, Andrea Gebek +3

We introduce an emission-biasing scheme in the SKIRT radiative transfer code that enables efficient generation of synthetic galaxy images optimized for low-surface-brightness (LSB)…

astro-ph.GA2025★ 5 cited

Evolution and Mass Dependence of UV-to-near-IR Color Gradients up to z=2.5 from HST+JWST

Marco Martorano, Arjen van der Wel, Andrea Gebek +7

We present the redshift evolution of radial color gradients (in rest-frame and ) for galaxies in the range z $<2.5…

astro-ph.EP2025

Volcanic Satellites Tidally Venting Na, K, SO2 in Optical & Infrared Light

Apurva V. Oza, Andrea Gebek, Moritz Meyer zu Westram +19

Recent infrared spectroscopy from the James Webb Space Telescope (JWST) has spurred analyses of common volcanic gases such as carbon dioxide (CO2), sulfur dioxide (SO2), alongside…

astro-ph.GA2025★ 1 cited

Evolution of galaxy attenuation curves driven by evolving dust mass and grain size distributions

Kosei Matsumoto, Laura Sommovigo, Andrea Gebek +8

We investigate the impacts of the evolution of dust mass and grain size distribution within a Milky Way-like (MW-like) galaxy simulation on global attenuation curves, focusing on t…

astro-ph.GA2025★ 26 cited

The COLIBRE project: cosmological hydrodynamical simulations of galaxy formation and evolution

Joop Schaye, Evgenii Chaikin, Matthieu Schaller +18

We present the COLIBRE galaxy formation model and the COLIBRE suite of cosmological hydrodynamical simulations. COLIBRE includes new models for radiative cooling, dust grains, star…

astro-ph.GA2025★ 3 cited

Even redder than we knew: color and evolution up to from JWST/NIRCam photometry

A. van der Wel, M. Martorano, D. Marchesini +14

JWST/NIRCam provides rest-frame near-IR photometry of galaxies up to with exquisite depth and accuracy. This affords an unprecedented view of the evolution of the UV-optica…

astro-ph.EP2025

Doppler Shifted Transient Sodium Detection by KECK/HIRES

Athira Unni, Apurva V. Oza, H. Jens Hoeijmakers +12

We carried out the first high-resolution transit observations of the exoplanet WASP-49 Ab with Keck/HIRES. Upon custom wavelength calibration we achieve a Doppler RV precision of $…

astro-ph.GA2025★ 4 cited

The multi-wavelength Tully-Fisher relation in the TNG50 cosmological simulation

Maarten Baes, Andrea Gebek, Sabelo Kunene +8

The Tully-Fisher relation (TFR) is one of the most important and widely used empirical correlations in extragalactic astronomy. Apart from its importance as a secondary distance in…

astro-ph.GA2025★ 8 cited

The mass-dependent UVJ diagram at cosmic noon: A challenge for galaxy evolution models and dust radiative transfer

Andrea Gebek, Benedikt Diemer, Marco Martorano +9

Context. The UVJ color-color diagram is a widely used diagnostic to separate star-forming and quiescent galaxies. Observational data from photometric surveys reveal a strong stella…

astro-ph.GA2025★ 10 cited

Evolution of the Sérsic Index up to z=2.5 from JWST and HST

Marco Martorano, Arjen van der Wel, Maarten Baes +12

The James Webb Space Telescope (JWST) is unveiling the rest-frame near-IR structure of galaxies. We measure the evolution with redshift of the rest-frame optical and near-IR Sérsic…

astro-ph.GA2024★ 4 cited

TODDLERS: A New UV to Millimeter Emission Library for Star-Forming Regions. II. Star Formation Rate Indicators Using Auriga Zoom Simulations

Anand Utsav Kapoor, Maarten Baes, Arjen van der Wel +6

Current galaxy formation simulations often approximate star-formation, necessitating models of star-forming regions to produce observables. In the first paper of the series, we int…

astro-ph.EP2024

Redshifted Sodium Transient near Exoplanet Transit

Apurva V. Oza, Julia V. Seidel, H. Jens Hoeijmakers +21

Neutral sodium (Na I) is an alkali metal with a favorable absorption cross section such that tenuous gases are easily illuminated at select transiting exoplanet systems. We examine…

astro-ph.GA2024

The many colors of the TNG100 simulation

Andrea Gebek, Ana Trčka, Maarten Baes +5

We apply the 3D dust radiative transfer code SKIRT to the low-redshift () galaxy population in the TNG100 cosmological simulation, the fiducial run of the IllustrisTNG pr…