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Related papers: Diverse Structural Evolution at z > 1 in Cosmologi…

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I discuss results from the COSMOS survey, showing that the fraction of disc galaxies that is barred decreases considerably with look-back time from z ~ 0.2 to z ~ 0.8. This decrease is more important for small mass and low luminosity…

Astrophysics · Physics 2008-02-04 E. Athanassoula

We study the formation and evolution of bulgeless galaxies within the Milky Way-Andromeda analogue sample of the TNG50 simulation. Through kinematic decomposition with Mordor, we identified bulgeless galaxies with a bulge-to-disc mass ratio…

We investigate the morphological properties of 494 galaxies selected from the GMASS survey at z>1, primarily in their optical rest frame, using HST images, from the CANDELS survey. We propose that the Hubble sequence of galaxy morphologies…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 M. Talia , A. Cimatti , M. Mignoli , L. Pozzetti , A. Renzini , J. Kurk , C. Halliday

We study the structure, age and metallicity gradients, and dynamical evolution using a cosmological zoom-in simulation of a Milky Way-mass galaxy from the Feedback in Realistic Environments project. In the simulation, stars older than 6 Gyr…

We study the rest-frame optical mass-size relation of bulges and discs from z~2 to z~0 for a complete sample of massive galaxies in the CANDELS fields using 2 component S\'ersic models (Dimauro et a. 2018). Discs and star forming galaxies…

We estimate the evolution of the galaxy-galaxy merger fraction for $M_\star>10^{10.5}M_\odot$ galaxies over $0.25<z<1$ in the $\sim$18.6 deg$^2$ deep CLAUDS+HSC-SSP surveys. We do this by training a Random Forest Classifier to identify…

Astrophysics of Galaxies · Physics 2021-06-09 Nathalie Thibert , Marcin Sawicki , Andy Goulding , Stephane Arnouts , Jean Coupon , Stephen Gwyn

There is cumulative evidence showing that, for the most massive galaxies, the fraction of disk-like objects compared to those with spheroidal properties increases with redshift. However, this evolution is thus far based on the surface…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Fernando Buitrago , Christopher J. Conselice , Benoit Epinat , Alejandro G. Bedregal , Ruth Grutzbauch , Benjamin J. Weiner

Interpreting the scaling relations measured by recent large kinematic surveys of $z < 1$ galaxies has remained hampered by large observational scatter. We show that the observed ISM and morpho-dynamical properties along the average $z \sim…

Astrophysics of Galaxies · Physics 2019-07-17 Mathieu Puech , Hector Flores , Myriam Rodrigues , Francois Hammer , Yanbin Yang

Aims: Following the study already presented in our previous paper, based on the Nordic Optical Telescope (NOT) sample, which consists of five clusters of galaxies within the redshift range 0.18 $\leq$ z $\leq$ 0.25, imaged in the central…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 B. Ascaso , J. A. L Aguerri , M. Moles , R. Sánchez-Janssen , D. Bettoni

A combination of ground-based (NTT and VLT) and HST (HDF-N and HDF-S) public imaging surveys have been used to collect a sample of 1712 I-selected and 319 $K\leq 21$ galaxies. Photometric redshifts have been obtained for all these galaxies.…

Astrophysics · Physics 2009-10-31 A. Fontana , N. Menci , S. D'Odorico , E. Giallongo , F. Poli , S. Cristiani , A. Moorwood , P. Saracco

More than 50 per cent of present-day massive disc galaxies show a rotating stellar bar. Their formation and dynamics have been widely studied both numerically and observationally. Although numerical simulations in the $\Lambda$CDM…

Astrophysics of Galaxies · Physics 2022-01-17 Ornela F. Marioni , Mario G. Abadi , Stefan Gottlöber , Gustavo Yepes

New simulations are presented which investigate the formation of smaller groups of galaxies in a CDM like universe. The simulations follow the evolution of dark matter and gas and are performed with an SPH code adapted for the…

Astrophysics · Physics 2016-08-30 Matthias Steinmetz

We present results from a careful and detailed analysis of the structural and dynamical properties of a sample of 29 disc-like objects identified at z=0 in three AP3M-SPH fully consistent cosmological simulations. These simulations are…

Astrophysics · Physics 2009-11-06 A. Saiz , R. Dominguez-Tenreiro , P. B. Tissera , S. Courteau

We investigate the origin of the Hubble sequence by analysing the evolution of the kinematic morphologies of central galaxies in the EAGLE cosmological simulation. By separating each galaxy into disk and spheroidal stellar components and…

Astrophysics of Galaxies · Physics 2018-05-10 Bart Clauwens , Joop Schaye , Marijn Franx , Richard G. Bower

We study the structural evolution of isolated star-forming galaxies in the Illustris TNG100-1 hydrodynamical simulation, with a focus on investigating the growth of the central core density within 2 kpc ($\Sigma_{*,2kpc}$) in relation to…

Astrophysics of Galaxies · Physics 2021-03-24 Dan Walters , Joanna Woo , Sara L. Ellison , Maan H. Hani

Massive galaxies at higher redshifts ($\emph{z}$ $>$ 2) show different characteristics from their local counterparts: They are compact and most likely have a disk. In this study, we trace the evolution of local massive galaxies by…

Astrophysics of Galaxies · Physics 2017-02-15 Roozbeh H. Davari , Luis C. Ho , Bahram Mobasher , Gabriela Canalizo

We study the rest-frame morphology and structural properties of optically selected starburst galaxies at redshift z < 1, using multi-waveband (BViz) high resolution images taken by the Advanced Camera for Surveys (ACS) as part of the Great…

We present our results on the structure and activity of massive galaxies at z=1-3 using one of the largest (166 with M_star>=5e10 M_sun) and most diverse samples of massive galaxies derived from the GOODS-NICMOS survey: (1) Sersic fits to…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 T. Weinzirl , S. Jogee , C. J. Conselice , C. Papovich , R. R. Chary , A. F. L. Bluck , R. Gruetzbauch , F. Buitrago , B. Mobasher , R. A. Lucas , M. Dickinson , A. E. Bauer

Modern cosmological simulations model the universe with increasing sophistication and at higher spatial and temporal resolutions. These enhancements permit detailed comparisons between the simulation outputs and real observational data.…