888 citations · 3k across the 33 of their papers we have counts for
28 papers · 1 filter
Zippers and Twisters: Planes of Satellite Galaxies Emerge from Whirling and Shocking Gas Streams in the Cosmic Web
Janvi P. Madhani, Charlotte Welker, Sneha Nair +7
We investigate dwarf satellite systems around Milky Way analogs in the NewHorizon simulation. Using simple estimators limiting over-detection, we identify planes of satellites comp…
The SAMI Galaxy Survey: large-scale environment affects galaxy spin amplitudes and the formation of slow rotators
Stefania Barsanti, Scott M. Croom, Matthew Colless +9
We explore the impact of the large-scale 3D density field, as defined by deep, wide-field galaxy surveys, on stellar spin () and the distributions of fast and slow rot…
The SAMI Galaxy Survey: impact of black hole activity on galaxy spin-filament alignments
Stefania Barsanti, Matthew Colless, Francesco D'Eugenio +9
The activity of central supermassive black holes might affect the alignment of galaxy spin axes with respect to the closest cosmic filaments. We exploit the SAMI Galaxy Survey to s…
VERTICO VI: Cold-gas asymmetries in Virgo cluster galaxies
Ian D. Roberts, Toby Brown, Nikki Zabel +20
We analyze cold-gas distributions in Virgo cluster galaxies using resolved CO(2-1) (tracing molecular hydrogen, H2) and HI observations from the Virgo Environment Traced In CO (VER…
The SAMI Galaxy Survey: flipping of the spin-filament alignment correlates most strongly with growth of the bulge
Stefania Barsanti, Matthew Colless, Charlotte Welker +8
We study the alignments of galaxy spin axes with respect to cosmic web filaments as a function of various properties of the galaxies and their constituent bulges and discs. We expl…
VERTICO: The Virgo Environment Traced In CO Survey
Toby Brown, Christine D. Wilson, Nikki Zabel +33
We present the Virgo Environment Traced in CO (VERTICO) survey, a new effort to map CO(), CO(), and CO() in 51 Virgo Cluster galaxies with the A…
Cosmic filaments delay quenching inside clusters
S. Kotecha, C. Welker, Z. Zhou +8
We investigate how large-scale cosmic filaments impact the quenching of galaxies within one virial radius of 324 simulated clusters from The Three Hundred project. We track cosmic…
The Baltimore Oriole's Nest: Cool Winds from the Inner and Outer Parts of a Star-Forming Galaxy at z=1.3
Weichen Wang, Susan A. Kassin, S. M. Faber +12
Strong galactic winds are ubiquitous at . However, it is not well known where inside galaxies these winds are launched from. We study the cool winds (\,K) in…
The Three Hundred Project: The gas disruption of infalling objects in cluster environments
Robert Mostoghiu, Jake Arthur, Frazer R. Pearce +8
We analyse the gas content evolution of infalling haloes in cluster environments from THE THREE HUNDRED project, a collection of 324 numerically modelled galaxy clusters. The haloe…
The ThreeHundred: the structure and properties of cosmic filaments in the outskirts of galaxy clusters
Agustín Rost, Ulrike Kuchner, Charlotte Welker +8
Galaxy cluster outskirts are described by complex velocity fields induced by diffuse material collapsing towards filaments, gas and galaxies falling into clusters, and gas shock pr…
The SAMI Galaxy Survey: a statistical approach to an optimal classification of stellar kinematics in galaxy surveys
Jesse van de Sande, Sam P. Vaughan, Luca Cortese +22
Large galaxy samples from multi-object IFS surveys now allow for a statistical analysis of the z~0 galaxy population using resolved kinematics. However, the improvement in number s…
Mapping and characterisation of cosmic filaments in galaxy cluster outskirts: strategies and forecasts for observations from simulations
Ulrike Kuchner, Alfonso Aragón-Salamanca, Frazer R. Pearce +11
Upcoming wide-field surveys are well-suited to studying the growth of galaxy clusters by tracing galaxy and gas accretion along cosmic filaments. We use hydrodynamic simulations of…
Angular momentum-related probe of cold gas deficiencies
Jie Li, Danail Obreschkow, Claudia Lagos +3
Recent studies of neutral atomic hydrogen (HI) in nearby galaxies found that all field disk galaxies are HI saturated, in that they carry roughly as much HI as permitted before thi…
The SAMI Galaxy Survey: First detection of a transition in spin orientation with respect to cosmic filaments in the stellar kinematics of galaxies
C. Welker, J. Bland-Hawthorn, J. Van de Sande +16
We present the first detection of mass dependent galactic spin alignments with local cosmic filaments with over 2 sigma confidence using IFS kinematics. The 3D network of cosmic fi…
From Stellar Halos to Intracluster Light: the physics of the Intra-Halo Stellar Component in cosmological hydrodynamical simulations
Rodrigo Cañas, Claudia del P. Lagos, Pascal J. Elahi +4
We study the Intra-Halo Stellar Component (IHSC) of Milky Way-mass systems up to galaxy clusters in the Horizon-AGN cosmological hydrodynamical simulation. We identify the IHSC usi…
The SAMI Galaxy Survey: Quenching of star formation in clusters I. Transition galaxies
Matt S. Owers, Michael J. Hudson, Kyle A. Oman +19
We use integral field spectroscopy from the SAMI Galaxy Survey to identify galaxies that show evidence for recent quenching of star formation. The galaxies exhibit strong Balmer ab…
Galaxies flowing in the oriented saddle frame of the cosmic web
K. Kraljic, C. Pichon, Y. Dubois +12
The strikingly anisotropic large-scale distribution of matter made of an extended network of voids delimited by sheets, themselves segmented by filaments, within which matter flows…
The SAMI Galaxy Survey: comparing 3D spectroscopic observations with galaxies from cosmological hydrodynamical simulations
Jesse van de Sande, Claudia D. P. Lagos, Charlotte Welker +19
Cosmological hydrodynamical simulations are rich tools to understand the build-up of stellar mass and angular momentum in galaxies, but require some level of calibration to observa…
The Three Hundred project: a large catalogue of theoretically modelled galaxy clusters for cosmological and astrophysical applications
Weiguang Cui, Alexander Knebe, Gustavo Yepes +34
We introduce the THE THREE HUNDRED project, an endeavour to model 324 large galaxy clusters with full-physics hydrodynamical re-simulations. Here we present the data set and study…
Introducing a new, robust galaxy finder algorithm for simulations
Rodrigo Cañas, Pascal J. Elahi, Charlotte Welker +4
Identifying galaxies in hydrodynamical simulations is a difficult task, particularly in regions of high density such as galaxy groups and clusters. We present a new scale-free shap…
SURFS: Riding the waves with Synthetic UniveRses For Surveys
Pascal J. Elahi, Charlotte Welker, Chris Power +4
We present the Synthetic UniveRses For Surveys ({\sc surfs}) simulations, a set of N-body/Hydro simulations of the concordance Cold Dark Matter (\LCDM) cosmology. These simulat…
Caught in the rhythm II: Competitive alignments of satellites with their inner halo and central galaxy
Charlotte Welker, Chris Power, Christophe Pichon +3
The anisotropic distribution of satellites around the central galaxy of their host halo is well-documented. However the relative impact of baryons and dark matter in shaping this d…
Quantifying the impact of mergers on the angular momentum of simulated galaxies
Claudia del P. Lagos, Adam R. H. Stevens, Richard G. Bower +8
We use EAGLE to quantify the effect galaxy mergers have on the stellar specific angular momentum of galaxies, . We split mergers into: dry (gas-poor)/wet (gas-rich),…
The Horizon-AGN simulation: morphological diversity of galaxies promoted by AGN feedback
Yohan Dubois, Sebastien Peirani, Christophe Pichon +4
The interplay between cosmic gas accretion on to galaxies and galaxy mergers drives the observed morphological diversity of galaxies. By comparing the state-of-the-art hydrodynamic…