Clustering of far-infrared galaxies in the AKARI all-sky survey north

A. Polio, T. T. Takeuchi, A. Solarz, P. Rybka, T. L. Suzuki, A. Pȩpiak, S. Oyabu

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

We present the measurements of the angular two-point correlation function for AKARI 90-/μm point sources, detected outside the Milky Way plane and other regions characterized by high Galactic extinction in the northern Galactic hemisphere, and categorized as extragalactic sources according to our far-infrared-color based criterion. Together with our previous work (Polio et al., 2013) this is the first measurement of the large-scale angular clustering of galaxies selected in the far-infrared after IRAS. We present the first attempt to estimate the spatial clustering properties of AKARI All-Sky galaxies and we conclude that they are mostly a very nearby (z ≤ 0.1) population of moderately clustered galaxies. We measure their correlation length ro ̃ 4.5 h-1 Mpc, which is consistent with the assumption that the FIS AKARI All-Sky surveys observes mostly a nearby star-forming population of galaxies.

Original languageEnglish
Pages (from-to)1109-1116
Number of pages8
Journalearth, planets and space
Volume65
Issue number10
DOIs
Publication statusPublished - 2013
Externally publishedYes

Keywords

  • Clustering
  • Cosmology
  • Dust
  • Galaxies
  • Infrared
  • Large-scale structure

ASJC Scopus subject areas

  • Geology
  • Space and Planetary Science

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