What is the Halo Mass Function in a Fuzzy Dark Matter Cosmology?
M. Kulkarni, and J. Ostriker. (2020)cite arxiv:2011.02116Comment: 6 pages, 6 figures, submitted to MNRAS.
Abstract
Fuzzy dark matter (FDM) or wave dark matter is an alternative theory designed
to solve the small-scale problems faced by the standard cold dark matter
proposal for the primary material component of the universe. It is made up of
ultra-light axions having mass $10^-22$ eV that typically have de
Broglie wavelength of several kpc, alleviating some of the apparent small-scale
discrepancies faced by the standard $Łambda$CDM paradigm. In this paper, we
calculate the halo mass function for the fuzzy dark matter using a sharp-k
window function and compare it with one calculated using numerical simulations,
finding the peak mass at roughly $10^10 M_ødot$ for a particle mass of
$210^-22$ eV. We also constrain the mass of FDM particle to be
$2\times10^-22$ eV using the observations of high-redshift ($z\sim
10$) lensed galaxies from CLASH survey.
Description
What is the Halo Mass Function in a Fuzzy Dark Matter Cosmology?
%0 Generic
%1 kulkarni2020function
%A Kulkarni, Mihir
%A Ostriker, Jeremiah P.
%D 2020
%K library
%T What is the Halo Mass Function in a Fuzzy Dark Matter Cosmology?
%U http://arxiv.org/abs/2011.02116
%X Fuzzy dark matter (FDM) or wave dark matter is an alternative theory designed
to solve the small-scale problems faced by the standard cold dark matter
proposal for the primary material component of the universe. It is made up of
ultra-light axions having mass $10^-22$ eV that typically have de
Broglie wavelength of several kpc, alleviating some of the apparent small-scale
discrepancies faced by the standard $Łambda$CDM paradigm. In this paper, we
calculate the halo mass function for the fuzzy dark matter using a sharp-k
window function and compare it with one calculated using numerical simulations,
finding the peak mass at roughly $10^10 M_ødot$ for a particle mass of
$210^-22$ eV. We also constrain the mass of FDM particle to be
$2\times10^-22$ eV using the observations of high-redshift ($z\sim
10$) lensed galaxies from CLASH survey.
@misc{kulkarni2020function,
abstract = {Fuzzy dark matter (FDM) or wave dark matter is an alternative theory designed
to solve the small-scale problems faced by the standard cold dark matter
proposal for the primary material component of the universe. It is made up of
ultra-light axions having mass $\sim 10^{-22}$ eV that typically have de
Broglie wavelength of several kpc, alleviating some of the apparent small-scale
discrepancies faced by the standard $\Lambda$CDM paradigm. In this paper, we
calculate the halo mass function for the fuzzy dark matter using a sharp-k
window function and compare it with one calculated using numerical simulations,
finding the peak mass at roughly $10^{10} {M_{\odot}}$ for a particle mass of
$2\times 10^{-22}$ eV. We also constrain the mass of FDM particle to be
$\gtrapprox 2\times10^{-22}$ eV using the observations of high-redshift ($z\sim
10$) lensed galaxies from CLASH survey.},
added-at = {2020-11-05T08:10:09.000+0100},
author = {Kulkarni, Mihir and Ostriker, Jeremiah P.},
biburl = {https://www.bibsonomy.org/bibtex/24d2f30787363255d5c00b23098fb584b/gpkulkarni},
description = {What is the Halo Mass Function in a Fuzzy Dark Matter Cosmology?},
interhash = {ad2f0e3210ce9142f6b307f63915e702},
intrahash = {4d2f30787363255d5c00b23098fb584b},
keywords = {library},
note = {cite arxiv:2011.02116Comment: 6 pages, 6 figures, submitted to MNRAS},
timestamp = {2020-11-05T08:10:09.000+0100},
title = {What is the Halo Mass Function in a Fuzzy Dark Matter Cosmology?},
url = {http://arxiv.org/abs/2011.02116},
year = 2020
}