Clustering of far-infrared galaxies in the AKARI All-Sky Survey North

A. Pollo, T. T. Takeuchi, A. Solarz, P. Rybka, T. L. Suzuki, A. Pȩpiak, S. Oyabu
2013 Earth, Planets and Space  
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 this is the first measurement of the large-scale angular clustering of galaxies selected in the far-infrared after IRAS. We present
more » ... 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 r 0 ∼ 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.
doi:10.5047/eps.2013.06.004 fatcat:o3zntqqamvgb7badquealoyt6m