Spectroscopic Constraints on UV Metal Line Emission at z 6 − 9 The Nature of Lyα Emitting Galaxies in the Reionization-Era
Item Type Article
Authors Mainali, Ramesh; Zitrin, A.; Stark, Daniel P; Ellis, Richard S; Richard, Johan; Tang, Mengtao; Laporte, Nicolas; Oesch, Pascal; McGreer, Ian
Citation Ramesh Mainali, Adi Zitrin, Daniel P Stark, Richard S Ellis, Johan Richard, Mengtao Tang, Nicolas Laporte, Pascal Oesch, Ian McGreer; Spectroscopic constraints on UV metal line emission at z 6–9: the nature of Lyα emitting galaxies in the reionization era, Monthly Notices of the Royal Astronomical Society, Volume 479, Issue 1, 1 September 2018, Pages 1180–1193, https:// doi.org/10.1093/mnras/sty1640
DOI 10.1093/mnras/sty1640
Publisher OXFORD UNIV PRESS
Journal MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Rights © Crown copyright 2018.
Download date 02/10/2021 01:53:07
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Version Final published version
Link to Item http://hdl.handle.net/10150/631194 MNRAS 479, 1180–1193 (2018) doi:10.1093/mnras/sty1640 Advance Access publication 2018 June 22
Spectroscopic constraints on UV metal line emission at z 6–9: the nature of Lyα emitting galaxies in the reionization era
Ramesh Mainali,1‹ Adi Zitrin,2 Daniel P. Stark,1 Richard S. Ellis,3 Johan Richard,4 Mengtao Tang,1 Nicolas Laporte,3 Pascal Oesch5 and Ian McGreer1 Downloaded from https://academic.oup.com/mnras/article-abstract/479/1/1180/5042954 by University of Arizona user on 14 December 2018 1Steward Observatory, University of Arizona, 933 N Cherry Ave, 85719 Tucson, AZ, USA 2Physics Department, Ben-Gurion University of the Negev, PO Box 653, Be’er-Sheva, 84105, Israel 3Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK 4Centre de Recherche Astrophysique de Lyon ,Univ Lyon, Univ Lyon1, Ens de Lyon, CNRS, UMR5574, F-69230 Saint-Genis-Laval, France 5Geneva Observatory, University of Geneva, Ch. des Maillettes 51, CH-1290 Versoix, Switzerland
Accepted 2018 June 19. Received 2018 June 13; in original form 2018 March 30
ABSTRACT Recent studies have revealed intense ultraviolet (UV) metal emission lines in a modest sample of z>7 Lyman-α emitters, indicating a hard ionizing spectrum is present. If such high ionization features are shown to be common, it may indicate that extreme radiation fields play a role in regulating the visibility of Lyα in the reionization era. Here, we present deep near-infrared spectra of seven galaxies with Lyα emission at 5.4