• Corpus ID: 117925404

Measuring galaxy morphology at $z>1$. I - calibration of automated proxies

  title={Measuring galaxy morphology at \$z>1\$. I - calibration of automated proxies},
  author={Marc Huertas-Company and Sugata Kaviraj and Simona Mei and Robert W. O’Connell and Rogier A. Windhorst and S. H. Cohen and .P. Hathi and Anton M. Koekemoer and Rossella Licitra and Anand Raichoor and Michael J. Rutkowski},
  journal={arXiv: Astrophysics of Galaxies},
[abridged] New near-infrared surveys, using the HST, offer an unprecedented opportunity to study rest-frame optical galaxy morphologies at z>1 and to calibrate automated morphological parameters that will play a key role in classifying future massive datasets like EUCLID or LSST. We study automated parameters (e.g. CAS, Gini, M20) of massive galaxies at 1 1: bulge-dominated systems have systematically higher concentration and Gini coefficients and are less asymmetric and rounder than disk… 


At z ≳ 1, the distinction between merging and “normal” star-forming galaxies based on single band morphology is often hampered by the presence of large clumps which result in a disturbed, merger-like

An enhanced merger fraction within the galaxy population of the SSA22 protocluster at z = 3.1

The overdense environments of protoclusters of galaxies in the early Universe (z > 2) are expected to accelerate the evolution of galaxies, with an increased rate of stellar mass assembly and black

Cosmic X-ray surveys of distant active galaxies

We review results from cosmic X-ray surveys of active galactic nuclei (AGNs) over the past $$\approx 15$$≈15 years that have dramatically improved our understanding of growing supermassive black

Flipping pancakes : how gas inflows and mergers shape galaxies in their cosmic environment

Interactions between galaxies and their larger scale environment is a central tenet of structure formation theory. However, this idea encompasses a long list of processes. Indeed, galaxies grow from

The impact from survey depth and resolution on the morphological classification of galaxies

MP acknowledge financial support from JAE-Doc programme of the Spanish National Research Council (CSIC), co-funded by the European Social Fund. This research was supported by the Junta de Andalucia

Non-parametric morphologies of mergers in the Illustris simulation

Fil: Bignone, Lucas Axel. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Instituto de Astronomia y Fisica del Espacio. -


Newborn spheroids at high redshift : When and how did the dominant, old stars in today's massive galaxies form?

We study ∼330 massive (M* > 109.5 M_⊙), newborn spheroidal galaxies (SGs) around the epoch of peak star formation (1 10^(10.5) M_⊙, and an age trend becomes evident in this mass regime: SGs with M* >