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  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
  4. 1.01 Articoli in rivista
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/31707
Title: The ALMA Spectroscopic Survey in the HUDF: A Search for [C ii] Emitters at 6 ≤ z ≤ 8
Authors: Uzgil, Bade D.
Oesch, Pascal A.
Walter, Fabian
Aravena, Manuel
Boogaard, Leindert
Carilli, Chris
DECARLI, ROBERTO 
Díaz-Santos, Tanio
Fudamoto, Yoshi
Inami, Hanae
Bouwens, Rychard
Cortes, Paulo C.
Cox, Pierre
Daddi, Emmanuele
González-López, Jorge
Labbe, Ivo
Popping, Gergö
Riechers, Dominik
Stefanon, Mauro
Van Der Werf, Paul
Weiss, Axel
Issue Date: 2021
Journal: THE ASTROPHYSICAL JOURNAL 
Number: 912
Issue: 1
First Page: 67
Abstract: The Atacama Large Millimeter/submillimeter Array (ALMA) Spectroscopic Survey in the Hubble Ultra Deep Field (ASPECS) Band 6 scan (212-272 GHz) covers potential [C ii] emission in galaxies at 6 ≤ z ≤ 8 throughout a 2.9 arcmin2 area. By selecting on known Lyα emitters (LAEs) and photometric dropout galaxies in the field, we perform targeted searches down to a 5σ [C ii] luminosity depth L [C II] ∼ 2.0 108 L o˙, corresponding roughly to star formation rates (SFRs) of 10-20 M o˙ yr-1 when applying a locally calibrated conversion for star-forming galaxies, yielding zero detections. While the majority of galaxies in this sample are characterized by lower SFRs, the resulting upper limits on [C ii] luminosity in these sources are consistent with the current literature sample of targeted ALMA observations of z = 6-7 LAEs and Lyman-break galaxies (LBGs), as well as the locally calibrated relations between L [C ii] and SFR - with the exception of a single [C ii]-deficient, UV-luminous LBG. We also perform a blind search for [C ii]-bright galaxies that may have been missed by optical selections, resulting in an upper limit on the cumulative number density of [C ii] sources with L [C II] > 2.0 108 L o˙ (5σ) to be less than 1.8 10-4 Mpc-3 (90% confidence level). At this luminosity depth and volume coverage, we present an observed evolution of the [C ii] luminosity function from z = 6-8 to z ∼ 0 by comparing the ASPECS measurement to literature results at lower redshift.
URI: http://hdl.handle.net/20.500.12386/31707
URL: https://iopscience.iop.org/article/10.3847/1538-4357/abe86b
https://api.elsevier.com/content/abstract/scopus_id/85106300559
ISSN: 0004-637X
DOI: 10.3847/1538-4357/abe86b
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

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Uzgil_2021_ApJ_912_67.pdf[Administrators only]964.98 kBAdobe PDF
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