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Excursion set theory for modified gravity: correlated steps, mass functions and halo bias

Lam, T.Y.; Li, B.

Excursion set theory for modified gravity: correlated steps, mass functions and halo bias Thumbnail


Authors

T.Y. Lam



Abstract

We show how correlated steps introduces significant contributions to the modification of the halo mass function in modified gravity models, taking the chameleon models as an example, in the framework of the excursion set approach. This correction applies to both the Lagrangian and Eulerian environments discussed in previous studies. Correlated steps also enhances the modifications arising from the fifth force in the conditional mass function as well as the halo bias. We found that abundance and clustering measurements from different environments can provide strong constraints on the chameleon models.

Journal Article Type Article
Publication Date Nov 1, 2012
Deposit Date Mar 27, 2013
Publicly Available Date May 2, 2014
Journal Monthly Notices of the Royal Astronomical Society
Print ISSN 0035-8711
Electronic ISSN 1365-2966
Publisher Royal Astronomical Society
Peer Reviewed Peer Reviewed
Volume 426
Issue 4
Pages 3260-3270
DOI https://doi.org/10.1111/j.1365-2966.2012.21746.x
Keywords Large-scale structure of Universe.
Public URL https://durham-repository.worktribe.com/output/1490058

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Copyright Statement
This article has been published in the Monthly Notices of the Royal Astronomical Society
© 2012 The Authors.
Published by Oxford University Press on behalf of The Royal Astronomical Society. All rights reserved.






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