---
res:
  bibo_abstract:
  - Hydrogen Lyα haloes (LAHs) are commonly used as a tracer of the circumgalactic
    medium (CGM) at high redshifts. In this work, we aim to explore the existence
    of Lyα haloes around individual UV-selected galaxies, rather than around Lyα emitters
    (LAEs), at high redshifts. Our sample was continuum-selected with F775W ≤ 27.5,
    and spectroscopic redshifts were assigned or constrained for all the sources thanks
    to the deepest (100- to 140-h) existing Very Large Telescope (VLT)/Multi-Unit
    Spectroscopic Explorer (MUSE) data with adaptive optics. The final sample includes
    21 galaxies that are purely F775W-magnitude selected within the redshift range
    z ≈ 2.9 − 4.4 and within a UV magnitude range −20 ≤ M1500 ≤ −18, thus avoiding
    any bias toward LAEs. We tested whether galaxy’s Lyα emission is significantly
    more extended than the MUSE PSF-convolved continuum component. We find 17 LAHs
    and four non-LAHs. We report the first individual detections of extended Lyα emission
    around non-LAEs. The Lyα halo fraction is thus as high as 81.0−11.2+10.3%, which
    is close to that for LAEs at z = 3 − 6 in the literature. This implies that UV-selected
    galaxies generally have a large amount of hydrogen in their CGM. We derived the
    mean surface brightness (SB) profile for our LAHs with cosmic dimming corrections
    and find that Lyα emission extends to 5.4 arcsec (≃40 physical kpc at the midpoint
    redshift z = 3.6) above the typical 1σ SB limit. The incidence rate of surrounding
    gas detected in Lyα per one-dimensional line of sight per unit redshift, dn/dz,
    is estimated to be 0.76−0.09+0.09 for galaxies with M1500 ≤ −18 mag at z ≃ 3.7.
    Assuming that Lyα emission and absorption arise in the same gas, this suggests,
    based on abundance matching, that LAHs trace the same gas as damped Lyα systems
    (DLAs) and sub-DLAs.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Haruka
      foaf_name: Kusakabe, Haruka
      foaf_surname: Kusakabe
  - foaf_Person:
      foaf_givenName: Anne
      foaf_name: Verhamme, Anne
      foaf_surname: Verhamme
  - foaf_Person:
      foaf_givenName: Jérémy
      foaf_name: Blaizot, Jérémy
      foaf_surname: Blaizot
  - foaf_Person:
      foaf_givenName: Thibault
      foaf_name: Garel, Thibault
      foaf_surname: Garel
  - foaf_Person:
      foaf_givenName: Lutz
      foaf_name: Wisotzki, Lutz
      foaf_surname: Wisotzki
  - foaf_Person:
      foaf_givenName: Floriane
      foaf_name: Leclercq, Floriane
      foaf_surname: Leclercq
  - foaf_Person:
      foaf_givenName: Roland
      foaf_name: Bacon, Roland
      foaf_surname: Bacon
  - foaf_Person:
      foaf_givenName: Joop
      foaf_name: Schaye, Joop
      foaf_surname: Schaye
  - foaf_Person:
      foaf_givenName: Sofia G.
      foaf_name: Gallego, Sofia G.
      foaf_surname: Gallego
  - foaf_Person:
      foaf_givenName: Josephine
      foaf_name: Kerutt, Josephine
      foaf_surname: Kerutt
  - foaf_Person:
      foaf_givenName: Jorryt J
      foaf_name: Matthee, Jorryt J
      foaf_surname: Matthee
      foaf_workInfoHomepage: http://www.librecat.org/personId=7439a258-f3c0-11ec-9501-9df22fe06720
    orcid: 0000-0003-2871-127X
  - foaf_Person:
      foaf_givenName: Michael
      foaf_name: Maseda, Michael
      foaf_surname: Maseda
  - foaf_Person:
      foaf_givenName: Themiya
      foaf_name: Nanayakkara, Themiya
      foaf_surname: Nanayakkara
  - foaf_Person:
      foaf_givenName: Roser
      foaf_name: Pelló, Roser
      foaf_surname: Pelló
  - foaf_Person:
      foaf_givenName: Johan
      foaf_name: Richard, Johan
      foaf_surname: Richard
  - foaf_Person:
      foaf_givenName: Laurence
      foaf_name: Tresse, Laurence
      foaf_surname: Tresse
  - foaf_Person:
      foaf_givenName: Tanya
      foaf_name: Urrutia, Tanya
      foaf_surname: Urrutia
  - foaf_Person:
      foaf_givenName: Eloïse
      foaf_name: Vitte, Eloïse
      foaf_surname: Vitte
  bibo_doi: 10.1051/0004-6361/202142302
  bibo_volume: 660
  dct_date: 2022^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/0004-6361
  - http://id.crossref.org/issn/1432-0746
  dct_language: eng
  dct_publisher: EDP Sciences@
  dct_subject:
  - Space and Planetary Science
  - Astronomy and Astrophysics
  - 'galaxies: high-redshift / galaxies: formation / galaxies: evolution / cosmology:
    observations'
  dct_title: 'The MUSE eXtremely Deep Field: Individual detections of Ly<i>α</i> haloes
    around rest-frame UV-selected galaxies at <i>z</i> ≃ 2.9–4.4@'
...