---
res:
  bibo_abstract:
  - Little red dots (LRDs) are a newly identified class of broad-line active galactic
    nuclei (AGNs) with a distinctive V-shaped spectrum characterized by red optical
    and blue UV continuum emission. Their high abundance at redshifts of z ∼ 6–8 and
    decline at lower redshifts suggest a transient origin. We propose that the spectral
    shape of LRDs originates from compact binary black hole systems, in which each
    black hole is surrounded by a mini-disk and embedded within a larger circumbinary
    disk. With a binary separation of ≲103 Schwarzschild radii, the Wien tail of a
    T ≃ 5000 K blackbody spectrum at the inner edge of the circumbinary disk produces
    the red optical emission, while the mini-disks power the UV continuum. Binary
    torques carve out a gap between the circumbinary disk and the mini-disks, setting
    the turnover wavelength of the V-shaped spectrum around the Balmer limit. This
    scenario naturally reproduces LRD spectra requiring only modest dust attenuation
    (AV ≲ 1 mag), resolving overestimated luminosities for LRDs in previous studies
    and alleviating a tension with the so-called Sołtan argument. This model predicts
    distinct spectral evolution as the binary orbit decays through binary disk interactions
    and gravitational-wave (GW) emission, linking early-stage “proto-LRD” binaries
    to the broader AGN population and late-stage “LRD descendants” to coalescing binaries
    detectable in GW experiments.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Kohei
      foaf_name: Inayoshi, Kohei
      foaf_surname: Inayoshi
  - foaf_Person:
      foaf_givenName: Jinyi
      foaf_name: Shangguan, Jinyi
      foaf_surname: Shangguan
  - foaf_Person:
      foaf_givenName: Xian
      foaf_name: Chen, Xian
      foaf_surname: Chen
  - foaf_Person:
      foaf_givenName: Luis C.
      foaf_name: Ho, Luis C.
      foaf_surname: Ho
  - foaf_Person:
      foaf_givenName: Zoltán
      foaf_name: Haiman, Zoltán
      foaf_surname: Haiman
      foaf_workInfoHomepage: http://www.librecat.org/personId=7c006e8c-cc0d-11ee-8322-cb904ef76f36
    orcid: 0000-0003-3633-5403
  bibo_doi: 10.3847/1538-4357/ae548d
  bibo_issue: '1'
  bibo_volume: 1002
  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 emergence of Little Red Dots from binary massive black holes@
...