Zobrazeno 11 - 20
of 88
pro vyhledávání: '"Lim, Seunghwan"'
Exploring the thermal energy contents of the intergalactic medium with the Sunyaev-Zel'dovich effect
We examine the thermal energy contents of the intergalactic medium (IGM) over three orders of magnitude in both mass density and gas temperature using thermal Sunyaev-Zel'dovich effect (tSZE). The analysis is based on {\it Planck} tSZE map and the co
Externí odkaz:
http://arxiv.org/abs/1804.09715
We present the detection of the kinetic Sunyaev-Zel'dovich effect (kSZE) signals from groups of galaxies as a function of halo mass down to $\log (M_{500}/{\rm M_\odot}) \sim 12.3$, using the {\it Planck} CMB maps and stacking about $40,000$ galaxy s
Externí odkaz:
http://arxiv.org/abs/1712.08619
A matched filter technique is applied to the Planck all-sky Compton y-parameter map to measure the thermal Sunyaev-Zel'dovich (tSZ) effect produced by galaxy groups of different halo masses selected from large redshift surveys in the low-z Universe.
Externí odkaz:
http://arxiv.org/abs/1710.06856
We apply a halo-based group finder to four large redshift surveys, the 2MRS, 6dFGS, SDSS and 2dFGRS, to construct group catalogs in the low-redshift Universe. The group finder is based on that of Yang et al. but with an improved halo mass assignment
Externí odkaz:
http://arxiv.org/abs/1706.02307
Akademický článek
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We compare predictions of a number of empirical models and numerical simulations of galaxy formation to the conditional stellar mass functions (CSMF)of galaxies in groups of different masses obtained recently by Lan et al. to test how well different
Externí odkaz:
http://arxiv.org/abs/1608.05086
We show that the ratio between the stellar mass of central galaxy and the mass of its host halo, $f_c \equiv M_{*,c}/M_{\rm h}$, can be used as an observable proxy of halo assembly time, in that galaxy groups with higher $f_c$ assembled their masses
Externí odkaz:
http://arxiv.org/abs/1502.01256
Autor:
Lim, Seunghwan, Lee, Jounghun
Publikováno v:
Astrophys.J. 792 (2014) 91
We present new formulae for the mass functions of the clusters and the isolated clusters with non Gaussian initial conditions. For this study, we adopt the Extended Zel'dovich (EZL) model as a basic framework, focusing on the case of primordial non-G
Externí odkaz:
http://arxiv.org/abs/1407.4168
Autor:
Lim, Seunghwan, Lee, Jounghun
Publikováno v:
JCAP 01 (2013) 019
A new way to construct a fitting formula for the halo mass function is presented. Our formula is expressed as a solution to the modified Jedamzik matrix equation that automatically satisfies the normalization constraint. The characteristic parameters
Externí odkaz:
http://arxiv.org/abs/1206.5351
Autor:
Lim, Seunghwan, Lee, Jounghun
Publikováno v:
Astrophys.J. 783 (2014) 39
We present an analytic formula for the supercluster mass function which is constructed by modifying the extended Zel'dovich model for the halo mass function. The formula has two characteristic parameters whose best-fit values are determined by fittin
Externí odkaz:
http://arxiv.org/abs/1201.1382