---
res:
  bibo_abstract:
  - "We report the detection of a 13σ Hα emission line from HDF850.1 at z = 5.188
    ± 0.001 using the FRESCO (First Reionization Era SpectroscopicallyComplete Observations)
    NIRCam F444W grism observations. Detection of Hα in HDF850.1 is noteworthy, given
    its high far-infrared (IR) luminosity, substantial dust obscuration, and the historical
    challenges in deriving its redshift.\r\nHDF850.1 shows a clear detection in the
    F444W imaging data, distributed between a northern and southern component, mirroring
    that seen in [C II] from the Plateau de Bure Interferometer. Modelling the spectral
    energy distribution of each component separately, we find that the northern component
    has a higher mass, star formation rate (SFR), and dust extinction than the southern
    component. The observed Hα emission appears to arise entirely from the less-obscured
    southern component and shows a similar \x04v∼ + 130 km s −1 velocity offset to
    that seen for [C II] relative to the source systemic redshift. Leveraging Hα-derived
    redshiftsfrom FRESCO observations, we find that HDF850.1 isforming in one of the
    richest environments identified to date at z > 5, with 100 z = 5.17–5.20 galaxies
    distributed across 13 smaller structures and a ∼(15 cMpc)3 volume. Based on the
    evolution of analogous structures in cosmological simulations, the z = 5.17–5.20
    structures seem likely to collapse into\r\na single > 1014M cluster by z ∼ 0.
    Comparing galaxy properties forming within this overdensity with those outside,
    we find the masses, SFRs, and UV luminosities inside the overdensity to be clearly
    higher. The prominence of Hα line emission from HDF850.1 and other known highly
    obscured z > 5 galaxies illustrates the potential of NIRCam-grism programs to
    map both\r\nthe early build-up of IR-luminous galaxies and overdense structures.@eng"
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Thomas
      foaf_name: Herard-Demanche, Thomas
      foaf_surname: Herard-Demanche
  - foaf_Person:
      foaf_givenName: Rychard J
      foaf_name: Bouwens, Rychard J
      foaf_surname: Bouwens
  - foaf_Person:
      foaf_givenName: Pascal A
      foaf_name: Oesch, Pascal A
      foaf_surname: Oesch
  - foaf_Person:
      foaf_givenName: Rohan P
      foaf_name: Naidu, Rohan P
      foaf_surname: Naidu
  - foaf_Person:
      foaf_givenName: Roberto
      foaf_name: Decarli, Roberto
      foaf_surname: Decarli
  - foaf_Person:
      foaf_givenName: Erica J
      foaf_name: Nelson, Erica J
      foaf_surname: Nelson
  - foaf_Person:
      foaf_givenName: Gabriel
      foaf_name: Brammer, Gabriel
      foaf_surname: Brammer
  - foaf_Person:
      foaf_givenName: Andrea
      foaf_name: Weibel, Andrea
      foaf_surname: Weibel
  - foaf_Person:
      foaf_givenName: Mengyuan
      foaf_name: Xiao, Mengyuan
      foaf_surname: Xiao
  - foaf_Person:
      foaf_givenName: Mauro
      foaf_name: Stefanon, Mauro
      foaf_surname: Stefanon
  - foaf_Person:
      foaf_givenName: Fabian
      foaf_name: Walter, Fabian
      foaf_surname: Walter
  - 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: Romain A
      foaf_name: Meyer, Romain A
      foaf_surname: Meyer
  - foaf_Person:
      foaf_givenName: Stijn
      foaf_name: Wuyts, Stijn
      foaf_surname: Wuyts
  - foaf_Person:
      foaf_givenName: Naveen
      foaf_name: Reddy, Naveen
      foaf_surname: Reddy
  - foaf_Person:
      foaf_givenName: Lucie
      foaf_name: Rowland, Lucie
      foaf_surname: Rowland
  - foaf_Person:
      foaf_givenName: Ivana
      foaf_name: van Leeuwen, Ivana
      foaf_surname: van Leeuwen
  - foaf_Person:
      foaf_givenName: Pablo Arrabal
      foaf_name: Haro, Pablo Arrabal
      foaf_surname: Haro
  - foaf_Person:
      foaf_givenName: Helmut
      foaf_name: Dannerbauer, Helmut
      foaf_surname: Dannerbauer
  - foaf_Person:
      foaf_givenName: Alice E
      foaf_name: Shapley, Alice E
      foaf_surname: Shapley
  - foaf_Person:
      foaf_givenName: John
      foaf_name: Chisholm, John
      foaf_surname: Chisholm
  - foaf_Person:
      foaf_givenName: Pieter
      foaf_name: van Dokkum, Pieter
      foaf_surname: van Dokkum
  - foaf_Person:
      foaf_givenName: Ivo
      foaf_name: Labbe, Ivo
      foaf_surname: Labbe
  - foaf_Person:
      foaf_givenName: Garth
      foaf_name: Illingworth, Garth
      foaf_surname: Illingworth
  - foaf_Person:
      foaf_givenName: Daniel
      foaf_name: Schaerer, Daniel
      foaf_surname: Schaerer
  - foaf_Person:
      foaf_givenName: Irene
      foaf_name: Shivaei, Irene
      foaf_surname: Shivaei
  bibo_doi: 10.1093/mnras/staf030
  bibo_issue: '2'
  bibo_volume: 537
  dct_date: 2025^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/0035-8711
  - http://id.crossref.org/issn/1365-2966
  dct_language: eng
  dct_publisher: Oxford University Press@
  dct_title: 'Mapping dusty galaxy growth at z > 5 with FRESCO: Detection of Hα in
    submm galaxy HDF850.1 and the surrounding overdense structures@'
...