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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/20.500.12386/31892
Title: Less and more IGM-transmitted galaxies from z ∼ 2.7 to z ∼ 6 from VANDELS and VUDS
Authors: Thomas, R.
PENTERICCI, Laura 
Le Fèvre, O.
Koekemoer, A. M.
CASTELLANO, MARCO 
Cimatti, A.
FONTANOT, Fabio 
GARGIULO, ADRIANA 
GARILLI, BIANCA MARIA ROSA 
Talia, M.
Amorín, R.
BARDELLI, Sandro 
CRISTIANI, Stefano 
CRESCI, GIOVANNI 
Franco, M.
Fynbo, J. P. U.
Hathi, N. P.
Hibon, P.
Khusanova, Y.
Le Brun, V.
Lemaux, B. C.
MANNUCCI, FILIPPO 
Schaerer, D.
Zamorani, G.
ZUCCA, Elena 
Issue Date: 2021
Journal: ASTRONOMY & ASTROPHYSICS 
Number: 650
First Page: A63
Abstract: Aims: Our aim is to analyze the variance of the intergalactic medium (IGM) transmission by studying this parameter in the rest-frame UV spectra of a large sample of high-redshift galaxies. <BR /> Methods: We made use of the VIMOS Ultra Deep Survey and the VANDELS public survey to gain insight into the far UV spectrum of 2.7 < z < 6 galaxies. Using the SPARTAN fitting software, we estimated the IGM toward individual galaxies and then divided them into two sub-samples characterized by a transmission above or below the theoretical prescription. We created average spectra of combined VUDS and VANDELS data for each set of galaxies in seven redshift bins. <BR /> Results: The resulting spectra clearly exhibit the variance of the IGM transmission that can be seen directly from high-redshift galaxy observations. Computing the optical depth based on the IGM transmission, we find an excellent agreement with results for quasi-stellar objects. In addition, our measurements appear to suggest that there is a large dispersion of redshift where a complete Gunn-Peterson Trough occurs, depending on the line of sight. <P />VANDELS: based on observations made with ESO Telescopes at the La Silla or Paranal Observatories under programme ID(s) 194.A-2003. <P />VUDS: based on data obtained with the European Southern Observatory Very Large Telescope, Paranal, Chile, under Large Program 185.A-0791.
URI: http://hdl.handle.net/20.500.12386/31892
URL: https://www.aanda.org/articles/aa/abs/2021/06/aa38438-20/aa38438-20.html
http://arxiv.org/abs/2103.02946v1
ISSN: 0004-6361
DOI: 10.1051/0004-6361/202038438
Bibcode ADS: 2021A&A...650A..63T
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

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