%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 }