GLACE survey: OSIRIS/GTC Tuneable Filter H$α$ imaging of the rich galaxy cluster ZwCl 0024.0+1652 at z = 0.395. Part I -- Survey presentation, TF data reduction techniques and catalogue
Creators: name: Sánchez-Portal, Miguel
name: Pintos-Castro, Irene
name: Pérez-Martínez, Ricardo
name: Cepa, Jordi
name: García, Ana M. Pérez
name: Domínguez-Sánchez, Helena
name: Bongiovanni, Ángel
name: Serra, Ana L.
name: Alfaro, Emilio
name: Altieri, Bruno
name: Aragón-Salamanca, Alfonso
name: Balkowski, Chantal
name: Biviano, Andrea
name: Bremer, Malcom
name: Castander, Francisco
name: Castañeda, Héctor
name: Castro-Rodríguez, Nieves
name: Chies-Santos, Ana L.
name: Coia, Daniela
name: Diaferio, Antonaldo
name: Duc, Pierre-Alain
name: Ederoclite, Alessandro
name: Geach, James
name: González-Serrano, Ignacio
name: Haines, Chris. P.
name: McBreen, Brian
name: Metcalfe, Leo
name: Oteo, Iván
name: Pérez-Fournón, Ismael
name: Poggianti, Bianca
name: Polednikova, Jana
name: Ramón-Pérez, Marina
name: Rodríguez-Espinosa, José M.
name: Santos, Joana S.
name: Smail, Ian
name: Smith, Graham P.
name: Temporin, Sonia
name: Valtchanov, Ivan
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: The cores of clusters at 0 $\lesssim$ z $\lesssim$ 1 are dominated by quiescent early-type galaxies, whereas the field is dominated by star-forming late-type ones. Galaxy properties, notably the star formation (SF) ability, are altered as they fall into overdense regions. The critical issues to understand this evolution are how the truncation of SF is connected to the morphological transformation and the responsible physical mechanism. The GaLAxy Cluster Evolution Survey (GLACE) is conducting a study on the variation of galaxy properties (SF, AGN, morphology) as a function of environment in a representative sample of clusters. A deep survey of emission line galaxies (ELG) is being performed, mapping a set of optical lines ([OII], [OIII], H$β$ and H$α$/[NII]) in several clusters at z $\sim$ 0.40, 0.63 and 0.86. Using the Tunable Filters (TF) of OSIRIS/GTC, GLACE applies the technique of TF tomography: for each line, a set of images at different wavelengths are taken through the TF, to cover a rest frame velocity range of several thousands km/s. The first GLACE results target the H$α$/[NII] lines in the cluster ZwCl 0024.0+1652 at z = 0.395 covering $\sim$ 2 $\times$ r$_{vir}$. We discuss the techniques devised to process the TF tomography observations to generate the catalogue of H$α$ emitters of 174 unique cluster sources down to a SFR below 1 M$_{\odot}$/yr. The AGN population is discriminated using different diagnostics and found to be $\sim$ 37% of the ELG population. The median SFR is 1.4 M$_{\odot}$/yr. We have studied the spatial distribution of ELG, confirming the existence of two components in the redshift space. Finally, we have exploited the outstanding spectral resolution of the TF to estimate the cluster mass from ELG dynamics, finding M$_{200}$ = 4.1 $\times$ 10$^{14}$ M$_{\odot} h^{-1}$, in agreement with previous weak-lensing estimates.
description: 23 pages, 13 figures, accepted for publication in A&amp;A. Astro-ph abstract abridged