Understanding higher-order nonlocal halo bias at large scales by combining the power spectrum with the bispectrum
Shun SaitoKavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, The University of Tokyo, Chiba 277-8582, JapanTobias BaldaufSchool of Natural Sciences, Institute for Advanced Study, 1 Einstein Drive, Princeton, New Jersey 08540, USAZvonimir VlahPhysik Institut, University of Zürich, Winterthurerstrasse 190, CH-8057 Zürich, SwitzerlandUroš SeljakDepartment of Physics, University of California, Berkeley, California 94720, USATeppei OkumuraKavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, The University of Tokyo, Chiba 277-8582, JapanPatrick McDonaldLawrence Berkeley National Laboratory, Physics Department, Berkeley, California 94720, USA
2014en
ABI
Аннотация
The authors study the relation between underlying matter distribution and galaxies (the galaxy bias problem), and present a vast and compelling study of nonlocal and higher order contributions to dark matter halo bias. They investigate how well different bias models fit simulated dark matter halos, and demonstrate the need to include nonlocal terms in order to accurately model the statistics of halos.
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