Testing modified gravity using a marked correlation function
Armijo, J.; Y.-c., Cai; Padilla, N.; Li, B.; Peacock, J.A.
Professor Baojiu Li firstname.lastname@example.org
In theories of modified gravity with the chameleon screening mechanism, the strength of the fifth force depends on environment. This induces an environment dependence of structure formation, which differs from Λ-cold-dark-matter (ΛCDM). We show that these differences could be captured by the marked correlation function. With the galaxy correlation functions and number densities calibrated to match between f(R) and ΛCDM models in simulations, we show that the marked correlation functions by using either the local galaxy number density or halo mass as the marks encode extra information, which can be used to test these theories. We discuss possible applications of these statistics in observations.
Armijo, J., Y.-c., C., Padilla, N., Li, B., & Peacock, J. (2018). Testing modified gravity using a marked correlation function. Monthly Notices of the Royal Astronomical Society, 478(3), 3627-3632. https://doi.org/10.1093/mnras/sty1335
|Journal Article Type||Article|
|Acceptance Date||May 14, 2018|
|Online Publication Date||May 21, 2018|
|Publication Date||May 21, 2018|
|Deposit Date||Jul 11, 2018|
|Publicly Available Date||Jul 12, 2018|
|Journal||Monthly Notices of the Royal Astronomical Society|
|Publisher||Royal Astronomical Society|
|Peer Reviewed||Peer Reviewed|
Published Journal Article
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society © 2018 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
You might also like
Upscaling ExaHyPE – on each and every core
Galaxy clustering from the bottom up: A Streaming Model emulator I
Higher order initial conditions with massive neutrinos
Fingerprints of modified gravity on galaxies in voids