Accurate method of modeling cluster scaling relations in modified gravity

J.-h, He; Li, B.

doi:10.1103/physrevd.93.123512

Accurate method of modeling cluster scaling relations in modified gravity

J.-h, He; Li, B.

Authors

He J.-h

Professor Baojiu Li baojiu.li@durham.ac.uk
Professor

Abstract

We propose a new method to model cluster scaling relations in modified gravity. Using a suite of nonradiative hydrodynamical simulations, we show that the scaling relations of accumulated gas quantities, such as the Sunyaev-Zel’dovich effect (Compton-y parameter) and the x-ray Compton-y parameter, can be accurately predicted using the known results in the ΛCDM model with a precision of ∼3%. This method provides a reliable way to analyze the gas physics in modified gravity using the less demanding and much more efficient pure cold dark matter simulations. Our results therefore have important theoretical and practical implications in constraining gravity using cluster surveys.

Citation

J.-h, H., & Li, B. (2016). Accurate method of modeling cluster scaling relations in modified gravity. Physical Review D, 93(12), Article 123512. https://doi.org/10.1103/physrevd.93.123512

Journal Article Type	Article
Acceptance Date	May 22, 2016
Online Publication Date	Jun 8, 2016
Publication Date	Jun 8, 2016
Deposit Date	Aug 18, 2016
Publicly Available Date	Aug 19, 2016
Journal	Physical Review D
Print ISSN	2470-0010
Electronic ISSN	2470-0029
Publisher	American Physical Society
Peer Reviewed	Peer Reviewed
Volume	93
Issue	12
Article Number	123512
DOI	https://doi.org/10.1103/physrevd.93.123512

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Copyright Statement
Reprinted with permission from the American Physical Society: He, J.-h. and Li, B. (2016) 'Accurate method of modeling cluster scaling relations in modified gravity.', Physical review D., 93 . p. 123512 © 2016 by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.