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In the FLARES (First Light And Reionisation Epoch Simulations) suite of hydrodynamical simulations, we find the high redshift ($z>5$) intrinsic size-luminosity relation is, surprisingly, negatively sloped. However, after including the…

By constructing scaling relations for galaxies in the massive cluster MACSJ0717.5 at $z=0.545$ and comparing with those of Coma, we model the luminosity evolution of the stellar populations and the structural evolution of the galaxies. We…

Astrophysics of Galaxies · Physics 2016-12-21 L. J. Oldham , R. C. W. Houghton , Roger L. Davies

For the same stellar mass, physically smaller star-forming galaxies are also metal richer (Ellison et al. 2008). What causes the relation remains unclear. The central star-forming galaxies in the EAGLE cosmological numerical simulation…

Astrophysics of Galaxies · Physics 2018-06-13 J. Sanchez Almeida , C. Dalla Vecchia

Using observed stellar mass functions out to $z=5$, we measure the main progenitor stellar mass growth of descendant galaxies with masses of $\log{M_{*}/M_{\odot}}=11.5,11.0,10.5,10.0$ at $z\sim0.1$ using an evolving cumulative number…

Astrophysics of Galaxies · Physics 2017-11-08 Allison R. Hill , Adam Muzzin , Marijn Franx , Danilo Marchesini

Increasingly large populations of disk galaxies are now being observed at increasingly high redshifts, providing new constraints on our knowledge of how such galaxies evolve. Are these observations consistent with a cosmology in which…

Astrophysics · Physics 2009-11-13 C. B. Brook , D. Kawata , H. Martel , B. K. Gibson , J. Bailin

We study the growth of massive galaxies from z=2 to the present using data from the NEWFIRM Medium Band Survey. The sample is selected at a constant number density of n=2x10^-4 Mpc^-3, so that galaxies at different epochs can be compared in…

The properties of galaxies in low-density regions of the universe suggest an interplay between galaxy formation and environment. However, the specific reason why this particular large-scale environment influences the evolution of galaxies…

Astrophysics of Galaxies · Physics 2024-01-17 Agustín Rodríguez-Medrano , Volker Springel , Federico Stasyszyn , Dante Paz

In order to assess whether the environment has a significant effect on galaxy sizes, we compare the mass--size relations of cluster and field galaxies in the $0.4 < z < 0.8$ redshift range from the ESO Distant Cluster Survey (EDisCS) using…

[abridged] This work aims to observationally investigate the history of size growth of early-type galaxies and how the growth depends on cosmic epoch and the mass of the halo in which they are embedded. We carried out a photometric and…

Astrophysics of Galaxies · Physics 2018-09-26 S. Andreon

We measure galaxy sizes on a sample of $\sim1200$ galaxies with confirmed spectroscopic redshifts $2 \leq z_{spec} \leq 4.5$ in the VIMOS Ultra Deep Survey (VUDS), representative of star-forming galaxies with $i_\mathrm{AB} \leq 25$. We…

Recent observations indicate a remarkable similarity in the properties of evolving galaxies at fixed mass and redshift, prompting us to consider the possibility that most galaxies may evolve with a common history encompassing star…

Astrophysics of Galaxies · Physics 2015-06-22 Charles L. Steinhardt , Josh S. Speagle

The XMM--LSS project is detecting distant clusters of low mass, quite comparable in mass to the ones in the local universe. This allows a direct comparison of galaxy properties at different redshifts in ``similar'' clusters. We present here…

Astrophysics · Physics 2009-11-10 S. Andreon , J. Willis , H. Quintana , I. Valtchanov , M. Pierre , F. Pacaud

We have explored the buildup of the local mass-size relation of elliptical galaxies using two visually classified samples. At low redshift we compiled a subsample of 2,656 elliptical galaxies from SDSS, whereas at higher redshift (up to…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Ignacio Trujillo , Ignacio Ferreras , Ignacio G. de la Rosa

From the IllustrisTNG-50 simulation, a sample of 836 central disk galaxies with tiny stellar halos is chosen to study the inherent evolution of galaxies driven by nature. These galaxies are classified as compact, normal, or extended by…

Astrophysics of Galaxies · Physics 2024-09-25 Hong-Chuan Ma , Min Du , Luis C. Ho , Ming-jie Sheng , Shihong Liao

The characteristic size of early-type galaxies (ETGs) of given stellar mass is observed to increase significantly with cosmic time, from redshift z>2 to the present. A popular explanation for this size evolution is that ETGs grow through…

Astrophysics of Galaxies · Physics 2019-08-14 C. Nipoti , T. Treu , M. W. Auger , A. S. Bolton

(Abridged) We study the galaxy mass-size relation in CARLA spectroscopically confirmed clusters at $1.4<z<2.8$, which span a total stellar mass $11.3<\mathrm{log}(M^c_*/M_{\odot})<12.6$ (halo mass $13.5 \lesssim…

Due to significant galaxy contamination and impurity in stellar mass selected samples (up to 95% from z=0-3), we examine the star formation history, quenching time-scales, and structural evolution of galaxies using a constant number density…

We measure the mass growth rate by merging for a wide range of galaxy types. We present the small-scale (0.014 < r < 11 h70^{-1} Mpc) projected cross-correlation functions w(rp) of galaxy subsamples from the spectroscopic sample of the NYU…

Astrophysics of Galaxies · Physics 2015-05-28 Tao Jiang , David W. Hogg , Michael R. Blanton

We study the growth of the red sequence through the number density and structural evolution of a sample of young and old quiescent galaxies at 0<z<2. The galaxies are selected from the NEWFIRM Medium-Band Survey (NMBS) in the Cosmic…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Katherine E. Whitaker , Mariska Kriek , Pieter G. van Dokkum , Rachel Bezanson , Gabriel Brammer , Marijn Franx , Ivo Labbe

Using a high resolution hydrodynamical cosmological simulation of the formation of a massive spheroidal galaxy we show that elliptical galaxies can be very compact and massive at high redshift in agreement with recent observations.…

Cosmology and Nongalactic Astrophysics · Physics 2011-02-11 Thorsten Naab , Peter H. Johansson , Jeremiah P. Ostriker