<?xml version="1.0" encoding="utf-8"?>
<TEI xmlns="http://www.tei-c.org/ns/1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:hal="http://hal.archives-ouvertes.fr/" xmlns:gml="http://www.opengis.net/gml/3.3/" xmlns:gmlce="http://www.opengis.net/gml/3.3/ce" version="1.1" xsi:schemaLocation="http://www.tei-c.org/ns/1.0 http://api.archives-ouvertes.fr/documents/aofr-sword.xsd">
  <teiHeader>
    <fileDesc>
      <titleStmt>
        <title>HAL TEI export of insu-04054629</title>
      </titleStmt>
      <publicationStmt>
        <distributor>CCSD</distributor>
        <availability status="restricted">
          <licence target="https://creativecommons.org/publicdomain/zero/1.0/">CC0 1.0 - Universal</licence>
        </availability>
        <date when="2026-05-21T09:45:40+02:00"/>
      </publicationStmt>
      <sourceDesc>
        <p part="N">HAL API Platform</p>
      </sourceDesc>
    </fileDesc>
  </teiHeader>
  <text>
    <body>
      <listBibl>
        <biblFull>
          <titleStmt>
            <title xml:lang="en">The correlation of the Lyman-alpha forest in close pairs and groups of high-redshift quasars: clustering of matter on scales 1-5 Mpc</title>
            <author role="aut">
              <persName>
                <forename type="first">E.</forename>
                <surname>Rollinde</surname>
              </persName>
              <email type="md5">da5f2d0dc35ec80de3e1cbabb5ea2e64</email>
              <email type="domain">cyu.fr</email>
              <idno type="idhal" notation="string">emmanuel-rollinde</idno>
              <idno type="idhal" notation="numeric">173472</idno>
              <idno type="halauthorid" notation="string">114280-173472</idno>
              <idno type="ORCID">https://orcid.org/0000-0002-6167-5621</idno>
              <idno type="IDREF">https://www.idref.fr/077190467</idno>
              <affiliation ref="#struct-541701"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">P.</forename>
                <surname>Petitjean</surname>
              </persName>
              <idno type="halauthorid">94149-0</idno>
              <affiliation ref="#struct-541701"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">C.</forename>
                <surname>Pichon</surname>
              </persName>
              <email type="md5">dbe2d587a0087530dfb9f6391bf2da66</email>
              <email type="domain">iap.fr</email>
              <idno type="idhal" notation="string">christophe-pichon</idno>
              <idno type="idhal" notation="numeric">738765</idno>
              <idno type="halauthorid" notation="string">106063-738765</idno>
              <idno type="ORCID">https://orcid.org/0000-0003-0695-6735</idno>
              <idno type="IDREF">https://www.idref.fr/091461618</idno>
              <idno type="GOOGLE SCHOLAR">4bdEIGEAAAAJ</idno>
              <affiliation ref="#struct-93746"/>
              <affiliation ref="#struct-541701"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">S.</forename>
                <surname>Colombi</surname>
              </persName>
              <idno type="halauthorid">109622-0</idno>
              <affiliation ref="#struct-541701"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">B.</forename>
                <surname>Aracil</surname>
              </persName>
              <idno type="halauthorid">106324-0</idno>
              <affiliation ref="#struct-541701"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">V.</forename>
                <surname>d'Odorico</surname>
              </persName>
              <idno type="halauthorid">642550-0</idno>
              <affiliation ref="#struct-541701"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">M. G.</forename>
                <surname>Haehnelt</surname>
              </persName>
              <idno type="halauthorid">2774830-0</idno>
            </author>
            <editor role="depositor">
              <persName>
                <forename>Christophe</forename>
                <surname>Pichon</surname>
              </persName>
              <email type="md5">dbe2d587a0087530dfb9f6391bf2da66</email>
              <email type="domain">iap.fr</email>
            </editor>
          </titleStmt>
          <editionStmt>
            <edition n="v1" type="current">
              <date type="whenSubmitted">2023-03-31 20:33:41</date>
              <date type="whenModified">2025-09-11 13:33:50</date>
              <date type="whenReleased">2023-03-31 20:33:41</date>
              <date type="whenProduced">2002</date>
            </edition>
            <respStmt>
              <resp>contributor</resp>
              <name key="114283">
                <persName>
                  <forename>Christophe</forename>
                  <surname>Pichon</surname>
                </persName>
                <email type="md5">dbe2d587a0087530dfb9f6391bf2da66</email>
                <email type="domain">iap.fr</email>
              </name>
            </respStmt>
          </editionStmt>
          <publicationStmt>
            <distributor>CCSD</distributor>
            <idno type="halId">insu-04054629</idno>
            <idno type="halUri">https://insu.hal.science/insu-04054629</idno>
            <idno type="halBibtex">rollinde:insu-04054629</idno>
            <idno type="halRefHtml">&lt;i&gt;SF2A-2002: Semaine de l'Astrophysique Francaise&lt;/i&gt;, 2002, à renseigner, Unknown Region. pp.73</idno>
            <idno type="halRef">SF2A-2002: Semaine de l'Astrophysique Francaise, 2002, à renseigner, Unknown Region. pp.73</idno>
            <availability status="restricted"/>
          </publicationStmt>
          <seriesStmt>
            <idno type="stamp" n="INSU">INSU - Institut National des Sciences de l'Univers</idno>
            <idno type="stamp" n="CNRS">CNRS - Centre national de la recherche scientifique</idno>
            <idno type="stamp" n="UNIV-STRASBG">Université de Strasbourg</idno>
            <idno type="stamp" n="IAP" corresp="SORBONNE-UNIVERSITE">Institut d'Astrophysique de Paris</idno>
            <idno type="stamp" n="SITE-ALSACE">Archive ouverte du site Alsace</idno>
            <idno type="stamp" n="SORBONNE-UNIVERSITE">Sorbonne Université</idno>
            <idno type="stamp" n="SU-INF-2018" corresp="SORBONNE-UNIVERSITE">SORBONNE université &lt;2018</idno>
            <idno type="stamp" n="SU-SCIENCES" corresp="SORBONNE-UNIVERSITE">Faculté des Sciences de Sorbonne Université</idno>
            <idno type="stamp" n="ALLIANCE-SU"> Alliance Sorbonne Université</idno>
            <idno type="stamp" n="UNIVOAK">UNIVOAK</idno>
            <idno type="stamp" n="UMR7550">Observatoire astronomique de Strasbourg </idno>
          </seriesStmt>
          <notesStmt>
            <note type="audience" n="2">International</note>
            <note type="popular" n="0">No</note>
            <note type="peer" n="1">Yes</note>
            <note type="proceedings" n="1">Yes</note>
          </notesStmt>
          <sourceDesc>
            <biblStruct>
              <analytic>
                <title xml:lang="en">The correlation of the Lyman-alpha forest in close pairs and groups of high-redshift quasars: clustering of matter on scales 1-5 Mpc</title>
                <author role="aut">
                  <persName>
                    <forename type="first">E.</forename>
                    <surname>Rollinde</surname>
                  </persName>
                  <email type="md5">da5f2d0dc35ec80de3e1cbabb5ea2e64</email>
                  <email type="domain">cyu.fr</email>
                  <idno type="idhal" notation="string">emmanuel-rollinde</idno>
                  <idno type="idhal" notation="numeric">173472</idno>
                  <idno type="halauthorid" notation="string">114280-173472</idno>
                  <idno type="ORCID">https://orcid.org/0000-0002-6167-5621</idno>
                  <idno type="IDREF">https://www.idref.fr/077190467</idno>
                  <affiliation ref="#struct-541701"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">P.</forename>
                    <surname>Petitjean</surname>
                  </persName>
                  <idno type="halauthorid">94149-0</idno>
                  <affiliation ref="#struct-541701"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">C.</forename>
                    <surname>Pichon</surname>
                  </persName>
                  <email type="md5">dbe2d587a0087530dfb9f6391bf2da66</email>
                  <email type="domain">iap.fr</email>
                  <idno type="idhal" notation="string">christophe-pichon</idno>
                  <idno type="idhal" notation="numeric">738765</idno>
                  <idno type="halauthorid" notation="string">106063-738765</idno>
                  <idno type="ORCID">https://orcid.org/0000-0003-0695-6735</idno>
                  <idno type="IDREF">https://www.idref.fr/091461618</idno>
                  <idno type="GOOGLE SCHOLAR">4bdEIGEAAAAJ</idno>
                  <affiliation ref="#struct-93746"/>
                  <affiliation ref="#struct-541701"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">S.</forename>
                    <surname>Colombi</surname>
                  </persName>
                  <idno type="halauthorid">109622-0</idno>
                  <affiliation ref="#struct-541701"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">B.</forename>
                    <surname>Aracil</surname>
                  </persName>
                  <idno type="halauthorid">106324-0</idno>
                  <affiliation ref="#struct-541701"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">V.</forename>
                    <surname>d'Odorico</surname>
                  </persName>
                  <idno type="halauthorid">642550-0</idno>
                  <affiliation ref="#struct-541701"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">M. G.</forename>
                    <surname>Haehnelt</surname>
                  </persName>
                  <idno type="halauthorid">2774830-0</idno>
                </author>
              </analytic>
              <monogr>
                <meeting>
                  <title>SF2A-2002: Semaine de l'Astrophysique Francaise</title>
                  <date type="start">2002</date>
                  <settlement>à renseigner</settlement>
                  <country key="ZZ">Unknown Region</country>
                </meeting>
                <imprint>
                  <biblScope unit="pp">73</biblScope>
                  <date type="datePub">2002</date>
                </imprint>
              </monogr>
              <idno type="bibcode">2002sf2a.conf...73R</idno>
            </biblStruct>
          </sourceDesc>
          <profileDesc>
            <langUsage>
              <language ident="en">English</language>
            </langUsage>
            <textClass>
              <classCode scheme="halDomain" n="sdu">Sciences of the Universe [physics]</classCode>
              <classCode scheme="halTypology" n="COMM">Conference papers</classCode>
              <classCode scheme="halOldTypology" n="COMM">Conference papers</classCode>
              <classCode scheme="halTreeTypology" n="COMM">Conference papers</classCode>
            </textClass>
            <abstract xml:lang="en">
              <p>The fluctuating Gunn-Peterson paradigm for the origin of the Lyman-alpha forest is tested by measuring the coherence length of the absorbing structures in real space from the cross-correlation of absorption spectra of a sample of quasars in pairs and groups at z 2 observed with FORS2 and UVES at the UT2 Kuyen ESO telescope. The transverse coherence length is similar to that measured in velocity space from the line of sight correlation function. The comparison of transverse to longitudinal correlation length constrains the cosmological constant to Omega-Λ&lt; 0.9. The larger samples of absorption spectra of QSO pairs with separations of a few arcminutes currently assembled should tighten this rather weak constraint considerably.</p>
            </abstract>
          </profileDesc>
        </biblFull>
      </listBibl>
    </body>
    <back>
      <listOrg type="structures">
        <org type="laboratory" xml:id="struct-541701" status="VALID">
          <idno type="IdRef">028182030</idno>
          <idno type="ISNI">0000000105408249</idno>
          <idno type="RNSR">200112483U</idno>
          <idno type="ROR">022bnxw24</idno>
          <orgName>Institut d'Astrophysique de Paris</orgName>
          <orgName type="acronym">IAP</orgName>
          <date type="start">2018-01-01</date>
          <desc>
            <address>
              <addrLine>98bis, bd Arago - 75014 Paris France</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">http://www.iap.fr/</ref>
          </desc>
          <listRelation>
            <relation name="UMR7095" active="#struct-300045" type="direct"/>
            <relation active="#struct-413221" type="direct"/>
            <relation name="UMR7095" active="#struct-441569" type="direct"/>
          </listRelation>
        </org>
        <org type="laboratory" xml:id="struct-93746" status="VALID">
          <idno type="IdRef">026396203</idno>
          <idno type="ISNI">0000000093834469</idno>
          <idno type="RNSR">199712602R</idno>
          <idno type="ROR">https://ror.org/04xsj2p07</idno>
          <idno type="Wikidata">Q947985</idno>
          <orgName>Observatoire astronomique de Strasbourg</orgName>
          <orgName type="acronym">ObAS</orgName>
          <date type="start">2009-01-01</date>
          <desc>
            <address>
              <addrLine>11 Rue de l'université 67000 STRASBOURG</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">http://astro.unistra.fr/</ref>
          </desc>
          <listRelation>
            <relation active="#struct-199013" type="direct"/>
            <relation name="UMR7550" active="#struct-300045" type="direct"/>
            <relation name="UMR7550" active="#struct-441569" type="direct"/>
          </listRelation>
        </org>
        <org type="institution" xml:id="struct-300045" status="VALID">
          <idno type="IdRef">029349265</idno>
          <idno type="ISNI">0000 0001 2154 1736</idno>
          <idno type="ROR">https://ror.org/04kdfz702</idno>
          <idno type="Wikidata">Q3152437</idno>
          <orgName>Institut national des sciences de l'Univers</orgName>
          <orgName type="acronym">INSU - CNRS</orgName>
          <date type="start">2007-04-19</date>
          <desc>
            <address>
              <addrLine>INSU-CNRS3 rue Michel-Ange, 75794 Paris Cedex 16</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">https://www.insu.cnrs.fr</ref>
          </desc>
        </org>
        <org type="regroupinstitution" xml:id="struct-413221" status="VALID">
          <idno type="IdRef">221333754</idno>
          <idno type="ROR">https://ror.org/02en5vm52</idno>
          <orgName>Sorbonne Université</orgName>
          <orgName type="acronym">SU</orgName>
          <date type="start">2018-01-01</date>
          <desc>
            <address>
              <addrLine>21 rue de l’École de médecine - 75006 Paris</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">http://www.sorbonne-universite.fr/</ref>
          </desc>
        </org>
        <org type="regroupinstitution" xml:id="struct-441569" status="VALID">
          <idno type="IdRef">02636817X</idno>
          <idno type="ISNI">0000000122597504</idno>
          <idno type="ROR">https://ror.org/02feahw73</idno>
          <orgName>Centre National de la Recherche Scientifique</orgName>
          <orgName type="acronym">CNRS</orgName>
          <date type="start">1939-10-19</date>
          <desc>
            <address>
              <country key="FR"/>
            </address>
            <ref type="url">https://www.cnrs.fr/</ref>
          </desc>
        </org>
        <org type="institution" xml:id="struct-199013" status="VALID">
          <idno type="IdRef">131056549</idno>
          <idno type="ROR">https://ror.org/00pg6eq24</idno>
          <orgName>Université de Strasbourg</orgName>
          <orgName type="acronym">UNISTRA</orgName>
          <desc>
            <address>
              <addrLine>4 rue Blaise Pascal - CS 90032 - 67081 Strasbourg cedex</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">https://www.unistra.fr/</ref>
          </desc>
        </org>
      </listOrg>
    </back>
  </text>
</TEI>