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We measure optical colors for the bulges of 312 disk galaxies from the Carnegie-Irvine Galaxy Survey and convert their previously available $R$-band structural parameters to stellar mass parameters. We also measure their average stellar…

Astrophysics of Galaxies · Physics 2022-10-13 Hua Gao , Luis C. Ho , Zhao-Yu Li

Galaxies infalling into clusters undergo both star-formation quenching and morphological transformation due to environmental effects. We investigate these processes and their timescales using a local sample of 20,191 cluster and 11,674…

Astrophysics of Galaxies · Physics 2024-06-21 V. M. Sampaio , R. R. de Carvalho , A. Aragón-Salamanca , M. R. Merrifield , I. Ferreras , D. J. Cornwell

Colours of spiral galaxies generally are affected by the underlying old stellar population, younger stars, and extinction by dust. Old and young populations generally can be disentangled using a combination of blue and near-infrared…

Astrophysics · Physics 2019-07-31 R. F. Peletier , M. Balcells

The physical origin of the scatter in the relation between galaxy stellar mass and the metallicity of the interstellar medium, i.e. the Mass-Metallicity Relation (MZR), reflects the relative importance of key processes in galaxy evolution.…

Astrophysics of Galaxies · Physics 2021-05-12 Maria L. van Loon , Peter D. Mitchell , Joop Schaye

We show that different stellar-mass estimation methods yield overall mass scales that disagree by factors up to ~2 for the z=0 galaxy population, and more importantly, relative mass scales that sometimes disagree by factors >~3 between…

Astrophysics · Physics 2009-11-13 Sheila J. Kannappan , Eric Gawiser

A major problem in extragalactic astronomy is the inability to distinguish in a robust, physical, and model independent way how galaxy populations are related to each other and to their formation histories. A similar, but distinct, and also…

Astrophysics · Physics 2009-11-07 Christopher J. Conselice

We computed the luminosity of simulated galaxies of the C-EAGLE project, a suite of 30 high-resolution zoom-in simulations of galaxy clusters based on the EAGLE simulation. The AB magnitudes are derived for different spectral bands, from…

Astrophysics of Galaxies · Physics 2022-06-08 Andrea Negri , Claudio Dalla Vecchia , J. Alfonso L. Aguerri , Yannick Bahé

We perform the first direct cosmological and astrophysical parameter inference from the combination of galaxy luminosity functions and colours using a simulation based inference approach. Using the Synthesizer code we simulate the dust…

Abridged - We quantify the effect of the galaxy group environment (for 12.5 < log(M_group/Msun) < 14.0) on the star formation rates of the (morphologically-selected) population of disk-dominated local Universe spiral galaxies (z < 0.13)…

The spatial and temporal relationships between stellar age, kinematics, and chemistry are a fundamental tool for uncovering the physics driving galaxy formation and evolution. Observationally, these trends are derived using carefully…

Astrophysics of Galaxies · Physics 2022-10-26 M. S. Miranda , B. A. Macfarlane , B. K. Gibson

With a large sample of bright, low-redshift galaxies with optical$-$near-IR imaging from the GAMA survey we use bulge-disc decompositions to understand the wavelength-dependent behavior of single-S\'ersic structural measurements. We denote…

We investigate the internal structure and density profiles of halos of mass $10^{10}-10^{14}~M_\odot$ in the Evolution and Assembly of Galaxies and their Environment (EAGLE) simulations. These follow the formation of galaxies in a…

The large number of galaxies imaged by digital sky surveys reinforces the need for computational methods for analyzing galaxy morphology. While the morphology of most galaxies can be associated with a stage on the Hubble sequence,…

Instrumentation and Methods for Astrophysics · Physics 2013-09-17 Lior Shamir , Anthony Holincheck , John Wallin

We report the morphological classification of 3727 galaxies from the Galaxy and Mass Assembly survey with M_r < -17.4 mag and in the redshift range 0.025 < z < 0.06 (2.1 x 10^5 Mpc^3 ) into E, S0-Sa, SB0-SBa, Sab-Scd, SBab-SBcd, Sd-Irr and…

We use a hybrid observational/theoretical approach to study the relation between galaxy kinematics and the derived stellar and halo masses of galaxies up to z=3 as a function of stellar mass, redshift and morphology. Our observational…

Astrophysics of Galaxies · Physics 2018-08-15 Christopher J. Conselice , Jonathan W. Twite , David P. Palamara , William Hartley

We investigate the relationship between stellar and gas specific angular momentum $j$, stellar mass $M_{*}$ and optical morphology for a sample of 488 galaxies extracted from the SAMI Galaxy Survey. We find that $j$, measured within one…

We use the hydrodynamical EAGLE simulation to study the magnitude and origin of the scatter in the stellar mass - halo mass relation for central galaxies. We separate cause and effect by correlating stellar masses in the baryonic simulation…

Astrophysics of Galaxies · Physics 2017-01-18 Jorryt Matthee , Joop Schaye , Robert A. Crain , Matthieu Schaller , Richard Bower , Tom Theuns

We use the Illustris simulation to study the distributions of ellipticities and kinematic misalignments of galactic projections, as well as the intrinsic shapes and rotation of the simulated galaxies. Our results for the projections of…

Astrophysics of Galaxies · Physics 2019-08-14 Lisiyuan Yang , Dandan Xu , Shude Mao , Volker Springel , Hongyu Li

We present first measurements of the evolution of the scatter of the cosmic average early-type galaxy color-magnitude relation (CMR) from z=1 to the present day, finding that it is consistent with models in which galaxies are constantly…

Cosmology and Nongalactic Astrophysics · Physics 2011-02-11 Christine Ruhland , Eric F. Bell , Boris Haeussler , Edward N. Taylor , Marco Barden , Daniel H. McIntosh

We investigate the dependence of the local galaxy stellar-to-halo mass relation (SHMR) on galaxy morphology. We use data from the Sloan Digital Sky Survey DR7 with morphological classifications from Galaxy Zoo, and compare with the EAGLE…

Astrophysics of Galaxies · Physics 2020-10-14 Camila A. Correa , Joop Schaye