---
res:
  bibo_abstract:
  - We propose an observational test for gravitationally recoiling supermassive black
    holes (BHs) in active galactic nuclei, based on a correlation between the velocities
    of BHs relative to their host galaxies, |\Delta v|, and their obscuring dust column
    densities, \Sigma_{dust} (both measured along the line of sight). We use toy models
    for the distribution of recoil velocities, BH trajectories, and the geometry of
    obscuring dust tori in galactic centres, to simulate 2.5x10^5 random observations
    of recoiling quasars. BHs with recoil velocities comparable to the escape velocity
    from the galactic centre remain bound to the nucleus, and do not fully settle
    back to the centre of the torus due to dynamical friction in a typical quasar
    lifetime. We find that |\Delta v| and \Sigma_ {dust} for these BHs are positively
    correlated. For obscured (\Sigma_{dust}>0) and for partially obscured (0<\Sigma_{dust}<~2.3
    g/m^2) quasars with |\Delta v|>=45 km/s, the sample correlation coefficient between
    log10(|\Delta v|) and \Sigma_{dust} is r_{45} = 0.28+/-0.02 and r_{45} = 0.13+/-0.02,
    respectively. Allowing for random +/-100 km/s errors in |\Delta v| unrelated to
    the recoil dilutes the correlation for the partially obscured quasars to r_{45}
    = 0.026+/-0.004 measured between |\Delta v| and \Sigma_{dust}. A random sample
    of >~3,500 obscured quasars with |\Delta v|>=45 km/s would allow rejection of
    the no-correlation hypothesis with 3 sigma significance 95% of the time. Finally,
    we find that the fraction of obscured quasars, F_{obs}(|\Delta v|), decreases
    with |\Delta v| from F_{obs}(<10 km/s)>~0.8 to F_{obs}(>10^3 km/s)<~0.4. This
    predicted trend can be compared to the observed fraction of type II quasars, and
    can further test combinations of recoil, trajectory, and dust torus models.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: P.
      foaf_name: Raffai, P.
      foaf_surname: Raffai
  - foaf_Person:
      foaf_givenName: Zoltán
      foaf_name: Haiman, Zoltán
      foaf_surname: Haiman
      foaf_workInfoHomepage: http://www.librecat.org/personId=7c006e8c-cc0d-11ee-8322-cb904ef76f36
  - foaf_Person:
      foaf_givenName: Z.
      foaf_name: Frei, Z.
      foaf_surname: Frei
  bibo_doi: 10.1093/mnras/stv2371
  bibo_issue: '1'
  bibo_volume: 455
  dct_date: 2015^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: A statistical method to search for recoiling supermassive black holes
    in active galactic nuclei@
...