Clustering of Submillimeter-selected Galaxies

By A. Blain, Scott Chapman, I. Smail, R. Ivison. 2004

226 citations recorded by the source corpus.

Using accurate positions from very deep radio observations to guide multiobject Keck spectroscopy, we have determined a substantially complete redshift distribution for very luminous distant submillimeter-selected galaxies (SMGs). A sample of 73 redshifts for SMGs in seven fields contains a surprisingly large number of "associations": systems of SMGs with Mpc-scale separations and redshifts within 1200 km s-1. This sample provides tentative evidence of strong clustering of SMGs at z ≃ 2-3 with a correlation length of ~(6.9 ± 2.1) h-1 Mpc, using a simple pair-counting approach that is appropriate to the small, sparse SMG samples. This is somewhat greater than the well-determined correlation lengths for both z ≃ 3 optical-UV color-selected Lyman break galaxies (LBGs) and z ≃ 2 QSOs. This could indicate that SMGs trace the densest large-scale structures in the high-redshift universe and that they may either be evolutionarily distinct from LBGs and QSOs or subject to a more complex astrophysical bias.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/4d6d9e8b45522bc7efefc1a4d9e930816c569baa

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In Astronomy and Astrophysics

  1. P. Hopkins
  2. L. Hernquist
  3. D. M. Alexander
  4. R. Dav'e
  5. R. Somerville
  6. D. Narayanan
  7. Volker Springel
  8. Thomas J. Cox

In Nuclear and High Energy Physics

  1. L. Hernquist
  2. P. Hopkins
  3. Volker Springel
  4. D. M. Alexander
  5. R. Ivison
  6. I. Smail
  7. C. Carilli
  8. S. Chapman

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