publication . Article . Preprint . Other literature type . 2019

Candidate massive galaxies at z ∼ 4 in the Dark Energy Survey

Name: Candidate massive galaxies at z ∼ 4 in the Dark Energy Survey
Keywords: astro-ph.GA, RCUK, STFC, Space and Planetary Science, Astronomy and Astrophysics, Galáxias - Evolução, Massa (Física), Galaxies - Evolution, Mass (Physics), Astrophysics - Astrophysics of Galaxies

Carlos E. Cunha; Gregory Tarle; Peter Doel; Paul Martini; F. Sobreira; Vic Scarpine; H. Thomas Diehl; Dominic Hanley; Marcelle Soares-Santos; J. Gschwend; ...

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Open Access English

Published: 01 Mar 2019

Summary
references
80

Abstract

Using stellar population models, we predicted that the Dark Energy Survey (DES) - due to its special combination of area (5000 deg. sq.) and depth ($i = 24.3$) - would be in the position to detect massive ($\gtrsim 10^{11}$ M$_{\odot}$) galaxies at $z \sim 4$. We confront those theoretical calculations with the first $\sim 150$ deg. sq. of DES data reaching nominal depth. From a catalogue containing $\sim 5$ million sources, $\sim26000$ were found to have observed-frame $g-r$ vs $r-i$ colours within the locus predicted for $z \sim 4$ massive galaxies. We further removed contamination by stars and artefacts, obtaining 606 galaxies lining up by the model selection...

doi: 10.1093/mnras/sty3305

Subjects

arXiv: Astrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Galaxy AstrophysicsAstrophysics::Solar and Stellar Astrophysics

free text keywords: astro-ph.GA, RCUK, STFC, Space and Planetary Science, Astronomy and Astrophysics, Galáxias - Evolução, Massa (Física), Galaxies - Evolution, Mass (Physics), Astrophysics - Astrophysics of Galaxies, Universe, media_common.quotation_subject, media_common, Star formation, Dark energy, Redshift, Galaxy formation and evolution, Stellar population, Astrophysics, Galaxy, Photometric redshift, Physics

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