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Related papers: The SAMI Galaxy Survey: A Range in S0 Properties I…

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The spatially resolved star formation histories are studied for 32 normal star-forming galaxies drawn from the the Spitzer Extended Disk Galaxy Exploration Science survey. At surface brightness sensitivities fainter than 28 mag…

Galaxy interactions leave imprints in the motions of their stars, and so observing the two-dimensional stellar kinematics allows us to uncover their formation process. Slow rotators, which have stellar orbits dominated by random motions,…

Astrophysics of Galaxies · Physics 2019-11-15 Mark T. Graham , Michele Cappellari , Matthew A. Bershady , Niv Drory

Stars form in cold molecular clouds. However, molecular gas is difficult to observe because the most abundant molecule (H2) lacks a permanent dipole moment. Rotational transitions of CO are often used as a tracer of H2, but CO is much less…

Galaxy internal structure growth has long been accused of inhibiting star formation in disc galaxies. We investigate the potential physical connection between the growth of dispersion-supported stellar structures (e.g. classical bulges) and…

We use data from the Sydney-AAO Multi-Object Integral Field Spectrograph (SAMI) Galaxy Survey and the Galaxy And Mass Assembly (GAMA) survey to investigate the spatially-resolved signatures of the environmental quenching of star formation…

Low-mass dwarf galaxies ($M_{\rm vir} \lesssim 10^9\rm\ M_\odot$) are fundamental cosmological building blocks, yet the physical processes driving their structural diversity remain poorly understood. Recent numerical simulations have…

Astrophysics of Galaxies · Physics 2026-02-26 Chi-Hong Lin , Michiko S Fujii , Takayuki R Saitoh , Yutaka Hirai

Using the TNG100 cosmological simulation, we study the formation and evolution of compact groups of galaxies. Over a redshift range of $0 \lesssim z \lesssim 0.2$, we identify these compact groups as FoF galaxy groups with high mean surface…

Astrophysics of Galaxies · Physics 2025-08-20 Bruno M. Celiz , José A. Benavides , Mario G. Abadi

Compact elliptical (cE) galaxies remain an elusively difficult galaxy class to study. Recent observations have suggested that isolated and host-associated cEs have different formation pathways, while simulation studies have also shown…

Astrophysics of Galaxies · Physics 2023-08-15 Simon Deeley , Michael Drinkwater , Sarah Sweet , Kenji Bekki , Warrick Couch , Duncan Forbes

We measure the ionised gas velocity dispersions of star-forming galaxies in the MAGPI survey ($z\sim0.3$) and compare them with galaxies in the SAMI ($z\sim0.05$) and KROSS ($z\sim1$) surveys to investigate how the ionised gas velocity…

We use \sim 2000 galaxies belonging to different environments to show how the fractions of different galaxy morphological types vary with global environment and as function of galaxy stellar mass at low redshift. Considering mass limited…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Rosa Calvi , Bianca M. Poggianti , Giovanni Fasano , Benedetta Vulcani

We discuss the observational evidences of the morphological transformation of Spirals into S0 galaxies in the cluster environment exploiting two big databases of galaxy clusters: WINGS (0.04 < z < 0.07) and EDisCS (0.4 < z < 0.8). The most…

Astrophysics of Galaxies · Physics 2015-08-20 Mauro D'Onofrio , Paola Marziani , Lucio Buson

Lenticular (S0) galaxies are galaxies that exhibit a bulge and disk component, yet lack any clear spiral features. With features considered intermediary between spirals and ellipticals, S0s have been proposed to be a transitional…

Astrophysics of Galaxies · Physics 2023-03-02 Mitchell K. Cavanagh , Kenji Bekki , Brent A. Groves

To understand the processes that build up galaxies we investigate the stellar structure and gas kinematics of spiral and irregular galaxies out to redshift 1. We target 92 galaxies in four cluster (z = 0.3 & 0.5) fields to study the…

Cosmology and Nongalactic Astrophysics · Physics 2009-09-17 Bodo L. Ziegler , Elif Kutdemir , Cristiano Da Rocha , Asmus Böhm , Reynier F. Peletier , Miguel Verdugo

Recent studies emphasize that an empirical relation between the stellar mass of galaxies and the mass of their host dark matter subhaloes can predict the clustering of galaxies and its evolution with cosmic time. In this paper we study the…

Cosmology and Nongalactic Astrophysics · Physics 2011-09-07 Eyal Neistein , Simone M. Weinmann , Cheng Li , Michael Boylan-Kolchin

We present a study of kinematic asymmetries from the integral field spectroscopic surveys MAGPI and SAMI. By comparing the asymmetries in the ionsied gas and stars, we aim to disentangle the physical processes that contribute to kinematic…

We present deep GMOS long-slit spectroscopy of 15 Coma cluster S0 galaxies, and extract kinematic properties along the major axis to several times the disc scale-length. Supplementing our dataset with previously published data, we create a…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 T. D. Rawle , John R. Lucey , Russell J. Smith , J. T. C. G. Head

The formation of galaxies in a CDM cosmogony is investigated by following the evolution of dark and baryonic matter and of the frequency- dependent spatially averaged radiation field. The gas is allowed to form stars which are independently…

Astrophysics · Physics 2007-05-23 Matthias Steinmetz , Ewald Mueller

We discuss evidence in local, present-day clusters of galaxies (from the ENACS survey) about the way in which those clusters have evolved and about the evolutionary relationships between the galaxies of different morphological types in…

Astrophysics · Physics 2009-11-10 Andrea Biviano , Peter Katgert

This paper investigates spheroidal galaxies comprising a self-interacting dark matter halo (SIDM) plus de Vaucouleurs stellar distribution. These are coupled only via their shared gravitational field, which is computed consistently from the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Curtis J. Saxton

Galaxies properties are known to be affected by their environment. One important question is how their angular momentum reflects the surrounding cosmic web. We use the SDSS to investigate the spin axes of spiral and elliptical galaxies…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Elmo Tempel , Noam I. Libeskind