---
res:
  bibo_abstract:
  - 'The detection of strong Balmer breaks and absorption features in Little Red Dots
    (LRDs) suggests they host active galactic nuclei embedded within dense gas envelopes,
    potentially powered by super-Eddington accretion. We present GLIMPSE-17775, a
    luminous (Lbol ∼ 1045 erg s−1) LRD at z = 3.501 behind Abell S1063 (μ ∼ 2), observed
    with deep JWST/NIRCam and a ∼20 hr (80 hr delensed) NIRSpec G395M spectrum. The
    data reveal over 40 emission and absorption features, including a rich forest
    of low-ionization Fe ii lines and numerous broad hydrogen recombination transitions.
    We use this depth to test the dense-gas interpretation through five independent
    diagnostics. Nearly all permitted lines show exponential wings with consistent
    FWHM, a signature of Thomson scattering requiring ne ≳ 108 cm−3. Adopting this
    width yields MBH ∼ 106.7M⊙, a factor of 10 lower than Gaussian fits, and λEdd
    ∼ 1.8. Additional diagnostics support the same picture: a pronounced Balmer break
    (fν,4050/fν,3670 = 2.0 ± 0.1), enhanced He i λ7065 and λ10830 with P-Cygni absorption,
    Bowen-fluorescent O i λ8446–λ11290 emission requiring Lyβ pumping, and 16 Fe ii
    lines matching fluorescence models. These features indicate a dense (n ∼ 108 cm−3),
    partially ionized cocoon where scattering and fluorescence dominate line formation,
    providing strong evidence that at least some LRDs are powered by super-Eddington
    black hole growth in the early Universe.@eng'
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Vasily
      foaf_name: Kokorev, Vasily
      foaf_surname: Kokorev
  - foaf_Person:
      foaf_givenName: John
      foaf_name: Chisholm, John
      foaf_surname: Chisholm
  - foaf_Person:
      foaf_givenName: Rohan P.
      foaf_name: Naidu, Rohan P.
      foaf_surname: Naidu
  - foaf_Person:
      foaf_givenName: Seiji
      foaf_name: Fujimoto, Seiji
      foaf_surname: Fujimoto
  - foaf_Person:
      foaf_givenName: Hakim
      foaf_name: Atek, Hakim
      foaf_surname: Atek
  - foaf_Person:
      foaf_givenName: Gabriel
      foaf_name: Brammer, Gabriel
      foaf_surname: Brammer
  - foaf_Person:
      foaf_givenName: Steven L.
      foaf_name: Finkelstein, Steven L.
      foaf_surname: Finkelstein
  - foaf_Person:
      foaf_givenName: Hollis B.
      foaf_name: Akins, Hollis B.
      foaf_surname: Akins
  - foaf_Person:
      foaf_givenName: Danielle A.
      foaf_name: Berg, Danielle A.
      foaf_surname: Berg
  - foaf_Person:
      foaf_givenName: Lukas J.
      foaf_name: Furtak, Lukas J.
      foaf_surname: Furtak
  - foaf_Person:
      foaf_givenName: Qinyue
      foaf_name: Fei, Qinyue
      foaf_surname: Fei
  - foaf_Person:
      foaf_givenName: Tiger Yu-Yang
      foaf_name: Hsiao, Tiger Yu-Yang
      foaf_surname: Hsiao
  - foaf_Person:
      foaf_givenName: Ivo
      foaf_name: Labbé, Ivo
      foaf_surname: Labbé
  - 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: Julian B.
      foaf_name: Muñoz, Julian B.
      foaf_surname: Muñoz
  - foaf_Person:
      foaf_givenName: Pascal A.
      foaf_name: Oesch, Pascal A.
      foaf_surname: Oesch
  - foaf_Person:
      foaf_givenName: Richard
      foaf_name: Pan, Richard
      foaf_surname: Pan
  - foaf_Person:
      foaf_givenName: Pierluigi
      foaf_name: Rinaldi, Pierluigi
      foaf_surname: Rinaldi
  - foaf_Person:
      foaf_givenName: Alberto
      foaf_name: Saldana-Lopez, Alberto
      foaf_surname: Saldana-Lopez
  - foaf_Person:
      foaf_givenName: Daniel
      foaf_name: Schaerer, Daniel
      foaf_surname: Schaerer
  - foaf_Person:
      foaf_givenName: Marta
      foaf_name: Volonteri, Marta
      foaf_surname: Volonteri
  - foaf_Person:
      foaf_givenName: Adi
      foaf_name: Zitrin, Adi
      foaf_surname: Zitrin
  bibo_doi: 10.3847/1538-4357/ae4ed7
  bibo_issue: '2'
  bibo_volume: 1004
  dct_date: 2026^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/0004-637X
  - http://id.crossref.org/issn/1538-4357
  dct_language: eng
  dct_publisher: IOP Publishing@
  dct_title: The Deepest GLIMPSE of a dense gas cocoon enshrouding a Little Red Dot@
...