Growing up in a megalopolis: environmental effects on galaxy evolution in a supercluster at z ∼ 0.65 in UKIDSS UDS

Growing up in a megalopolis: environmental effects on galaxy evolution in a supercluster at z ∼ 0.65 in UKIDSS UDS

Abstract We present a large-scale galaxy structure Cl J021734−0513 at z ∼ 0.65 discovered in the UKIDSS UDS field, made of ∼20 galaxy groups and clusters, spreading over 10 Mpc. We report on a VLT/VIMOS spectroscopic follow-up program that, combined with past spectroscopy, allowed us to confirm four...

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Veröffentlicht in:Monthly notices of the Royal Astronomical Society 2018-04, Vol.475 (3), p.4148-4169
Hauptverfasser: Galametz, Audrey, Pentericci, Laura, Castellano, Marco, Mendel, Trevor, Hartley, Will G, Fossati, Matteo, Finoguenov, Alexis, Almaini, Omar, Beifiori, Alessandra, Fontana, Adriano, Grazian, Andrea, Scodeggio, Marco, Kocevski, Dale D
Format: Artikel
Sprache:eng
Schlagworte:
Computer simulation
Emission measurements
Environmental effects
Galactic clusters
Galactic evolution
Galaxies
Markov analysis
Markov chains
Megalopolises
Monte Carlo simulation
Spectroscopy
Spectrum analysis
Star & galaxy formation
Star formation
Stars & galaxies
Stellar age
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Zusammenfassung:Abstract We present a large-scale galaxy structure Cl J021734−0513 at z ∼ 0.65 discovered in the UKIDSS UDS field, made of ∼20 galaxy groups and clusters, spreading over 10 Mpc. We report on a VLT/VIMOS spectroscopic follow-up program that, combined with past spectroscopy, allowed us to confirm four galaxy clusters (M200 ∼ 1014 M⊙) and a dozen associated groups and star-forming galaxy overdensities. Two additional filamentary structures at z ∼ 0.62 and 0.69 and foreground and background clusters at 0.6 
ISSN:0035-8711
1365-2966
DOI:10.1093/mnras/sty095