The VIMOS Public Extragalactic Redshift Survey (VIPERS): galaxy segregation inside filaments at<i>z</i>≃ 0.7
Nicola MalavasiCNRS, Laboratoire d'Astrophysique de Marseille, UMR 7326, Aix Marseille Université, F-13388, Marseille, FranceS. ArnoutsCNRS, Laboratoire d'Astrophysique de Marseille, UMR 7326, Aix Marseille Université, F-13388, Marseille, FranceD. VibertCNRS, Laboratoire d'Astrophysique de Marseille, UMR 7326, Aix Marseille Université, F-13388, Marseille, FranceS. de la TorreCNRS, Laboratoire d'Astrophysique de Marseille, UMR 7326, Aix Marseille Université, F-13388, Marseille, FranceT. MoutardCNRS, Laboratoire d'Astrophysique de Marseille, UMR 7326, Aix Marseille Université, F-13388, Marseille, FranceChristophe PichonInstitute d'Astrophysique de Paris, UMR7095 CNRS, Université Pierre et Marie Curie, 98 bis Boulevard Arago, F-75014 Paris, FranceI. DavidzonCNRS, Laboratoire d'Astrophysique de Marseille, UMR 7326, Aix Marseille Université, F-13388, Marseille, FranceKatarina KraljicCNRS, Laboratoire d'Astrophysique de Marseille, UMR 7326, Aix Marseille Université, F-13388, Marseille, FranceM. BolzonellaINAF – Osservatorio Astronomico di Bologna, via Ranzani 1, I-40127 Bologna, ItalyAlexander EggemeierINAF – Osservatorio Astronomico di Brera, Via Brera 28, 20122 Milano, via E. Bianchi 46, I-23807 Merate, ItalyB. GarilliINAF – IASF Milano, via Bassini 15, I-20133 Milano, ItalyM. ScodeggioINAF – IASF Milano, via Bassini 15, I-20133 Milano, ItalyB. R. GranettINAF – Osservatorio Astronomico di Brera, Via Brera 28, 20122 Milano, via E. Bianchi 46, I-23807 Merate, ItalyU. AbbasINAF – Osservatorio Astronomico di Torino, I-10025 Pino Torinese, ItalyC. AdamiCNRS, Laboratoire d'Astrophysique de Marseille, UMR 7326, Aix Marseille Université, F-13388, Marseille, FranceD. BottiniINAF – IASF Milano, via Bassini 15, I-20133 Milano, ItalyA. CappiINAF – Osservatorio Astronomico di Bologna, via Ranzani 1, I-40127 Bologna, ItalyAsantha CoorayDipartimento di Fisica e Astronomia (DIFA), Università di Bologna, v.le Berti Pichat 6/2, I-40127 Bologna, ItalyP. FranzettiINAF – IASF Milano, via Bassini 15, I-20133 Milano, ItalyA. FritzINAF – IASF Milano, via Bassini 15, I-20133 Milano, ItalyA. IovinoINAF – Osservatorio Astronomico di Brera, Via Brera 28, 20122 Milano, via E. Bianchi 46, I-23807 Merate, ItalyJ. KrywultInstitute of Physics, Jan Kochanowski University, ul. Swietokrzyska 15, PL-25-406 Kielce, PolandV. Le BrunCNRS, Laboratoire d'Astrophysique de Marseille, UMR 7326, Aix Marseille Université, F-13388, Marseille, FranceO. Le FévreCNRS, Laboratoire d'Astrophysique de Marseille, UMR 7326, Aix Marseille Université, F-13388, Marseille, FranceD. MaccagniINAF – IASF Milano, via Bassini 15, I-20133 Milano, ItalyK. MałekNational Centre for Nuclear Research, ul. Hoza 69, PL-00-681 Warszawa, PolandF. MarulliDipartimento di Fisica e Astronomia (DIFA), Università di Bologna, v.le Berti Pichat 6/2, I-40127 Bologna, ItalyM. PollettaAix-Marseille Université, Jardin du Pharo, 58 bd Charles Livon, F-13284 Marseille cedex 7, FranceA. PolloAstronomical Observatory of the Jagiellonian University, Orla 171, PL-30-001 Cracow, PolandL. A. M. TascaCNRS, Laboratoire d'Astrophysique de Marseille, UMR 7326, Aix Marseille Université, F-13388, Marseille, FranceRita TojeiroSchool of Physics and Astronomy, University of St Andrews, St Andrews KY16 9SS, UKD. VerganiINAF – IASF Bologna, via Gobetti 101, I-40129 Bologna, ItalyA. ZanichelliINAF – Istituto di Radioastronomia, via Gobetti 101, I-40129 Bologna, ItalyJ. BelAix Marseille Université, CNRS, CPT, UMR 7332, F-13288 Marseille, FranceE. BranchiniDipartimento di Matematica e Fisica, Università degli Studi Roma Tre, via della Vasca Navale 84, I-00146 Roma, ItalyJ. CouponAstronomical Observatory of the University of Geneva, ch. d'Ecogia 16, CH-1290 Versoix, SwitzerlandG. De LuciaINAF – Osservatorio Astronomico di Trieste, via G. B. Tiepolo 11, I-34143 Trieste, ItalyYohan DuboisInstitute d'Astrophysique de Paris, UMR7095 CNRS, Université Pierre et Marie Curie, 98 bis Boulevard Arago, F-75014 Paris, FranceA. J. HawkenINAF – Osservatorio Astronomico di Brera, Via Brera 28, 20122 Milano, via E. Bianchi 46, I-23807 Merate, ItalyO. IlbertCNRS, Laboratoire d'Astrophysique de Marseille, UMR 7326, Aix Marseille Université, F-13388, Marseille, FranceC. LaigleInstitute d'Astrophysique de Paris, UMR7095 CNRS, Université Pierre et Marie Curie, 98 bis Boulevard Arago, F-75014 Paris, FranceL. MoscardiniDipartimento di Fisica e Astronomia (DIFA), Università di Bologna, v.le Berti Pichat 6/2, I-40127 Bologna, ItalyT. SousbieInstitute d'Astrophysique de Paris, UMR7095 CNRS, Université Pierre et Marie Curie, 98 bis Boulevard Arago, F-75014 Paris, FranceM. TreyerAix-Marseille UniversitéG. ZamoraniINAF – Osservatorio Astronomico di Bologna, via Ranzani 1, I-40127 Bologna, Italy
2016en
ABI
Abstract
We present the first quantitative detection of large-scale filamentary structure at z ≃ 0.7 in the large cosmological volume probed by the VIMOS Public Extragalactic Redshift Survey (VIPERS). We use simulations to show the capability of VIPERS to recover robust topological features in the galaxy distribution, in particular the filamentary network. We then investigate how galaxies with different stellar masses and stellar activities are distributed around the filaments, and find a significant segregation, with the most massive or quiescent galaxies being closer to the filament axis than less massive or active galaxies. The signal persists even after downweighting the contribution of peak regions. Our results suggest that massive and quiescent galaxies assemble their stellar mass through successive mergers during their migration along filaments towards the nodes of the cosmic web. On the other hand, low-mass star-forming galaxies prefer the outer edge of filaments, a vorticity-rich region dominated by smooth accretion, as predicted by the recent spin alignment theory. This emphasizes the role of large-scale cosmic flows in shaping galaxy properties.
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Citations and references
Cited by 20 references