2011MNRAS.417.1074Y

Query : 2011MNRAS.417.1074Y

2011MNRAS.417.1074Y - Mon. Not. R. Astron. Soc., 417, 1074-1087 (2011/October-3)

Modification of the halo mass function by kurtosis associated with primordial non-gaussianity.

YOKOYAMA S., SUGIYAMA N., ZAROUBI S. and SILK J.

Abstract (from CDS):

We study the halo mass function in the presence of a kurtosis type of primordial non-Gaussianity. The kurtosis corresponds to the trispectrum as defined in Fourier space. The primordial trispectrum is commonly characterized by two parameters, τ_NL and g_NL. We focus on τ_NLwhich is an important parameter to test the physics of multifield inflation models. As applications of the derived non-Gaussian mass function, we consider the effects on the abundance of void structure, on early star formation and on formation of the most massive objects at high redshift. We show that by comparing the effects of primordial non-Gaussianity on cluster abundance with that on void abundance, we can distinguish between the skewness and the kurtosis types of primordial non-Gaussianity. As for early star formation, we show that the kurtosis type of primordial non-Gaussianity seems on the average not to affect the reionization history of the Universe. However, at high redshifts (up to z ≃ 20) such non-Gaussianity does somewhat affect the early stages of reionization.

Abstract Copyright: 2011 The Authors. Monthly Notices of the Royal Astronomical Society2011 RAS

Journal keyword(s): dark ages, reionization, first stars - inflation - large-scale structure of Universe

Simbad objects: 1

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Number of rows : 1

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	ClG J2235-2557	ClG	22 35 20.6	-25 57 42						~	151	0

Query : 2011MNRAS.417.1074Y

Basic data :

ClG J2235-2557 -- Cluster of Galaxies

ClG (2012MNRAS,ClG,...), C?G (2012MNRAS,XCLASS), X (1WGA,XMMU), gLe (2013MNRAS)

22 35 20.6 -25 57 42 [ ] E 2005ApJ...623L..85M

22 32 34.8 -26 13 15 [ ]

027.2757 -59.6333 [ ]

V(km/s) 210463 [~] / z(spectroscopic) 1.39 [~] / cz 416712 [~] (Opt) D 2012MNRAS.423.1024M

1.666666627 1.666666627 0 (Xray) E 2021A&A...652A..12K

J 19.277 [~] C 2013MNRAS.433..825L

K 17.317 [0.026] C 2013MNRAS.433..825L

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`ClG J2235-2557`	`XCLASS 2062`	`XMMU J223520.6-255743`
`NAME XMMU J2235.3-2557`	`XDCP J2235.3-2557`	`XMMXCS J223520.4-255742.1`
`1WGA J2235.3-2557`	`XMMU J223520.6-255742`	`XMMXCS J2235.3-2557`

References (151 between 1850 and 2026) (Total 151)
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