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| Paper: |
Ultraluminous Infrared Galaxies at 1.5 < z < 3 Occupy Dark Matter Haloes of Mass ∼6 × 1013M⊙ |
| Volume: |
380, At the Edge of the Universe: Latest Results from the Deepest Astronomical Surveys |
| Page: |
399 |
| Authors: |
Farrah, D.; Lonsdale, C.J.; Borys, C.; Fang, F.; Waddington, I.; Oliver, S.; Rowan-Robinson, M.; Babbedge, T.; Shupe, D.; Polletta, M.; Smith, H.E.; Surace, J. |
| Abstract: |
We present measurements of the spatial clustering of ultraluminous infrared galaxies in two redshift intervals, Both samples cluster strongly, with r0 = 14.40 ± 1.99h−1Mpc for the 2 < z < 3 sample, and r0 = 9.40 ± 2.24h−1Mpc for the 1.5 < z < 2.0 sample, making them among the most biased galaxies at these epochs. These clustering amplitudes are consistent with both populations residing in dark matter haloes with masses of ~ 6 × 1013M⊙. We infer that a minimum dark matter halo mass is an important factor for all forms of luminous, obscured activity in galaxies at z > 1. Adopting plausible models for the growth of DM haloes with redshift, then the haloes hosting the 2 < z < 3 sample will likely host the richest clusters of galaxies at z=0, whereas the haloes hosting the 1.5 < z < 2.0 sample will likely host poor to rich clusters at z=0. |
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