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Identification of Cosmic Voids as Massive Cluster Counterparts
Junsup Shim, Changbom Park, Juhan Kim +1
We develop a method to identify cosmic voids from the matter density field by adopting a physically-motivated concept that voids are the counterpart of massive clusters. To prove t…
PSF Deconvolution of the IFU Data and Restoration of Galaxy Stellar Kinematics
Haeun Chung, Changbom Park, Yong-Sun Park
We present a performance test of the Point Spread Function deconvolution algorithm applied to astronomical Integral Field Unit (IFU) Spectroscopy data for restoration of galaxy kin…
Dependence of the Fundamental Plane of Early-type Galaxies on Age and Internal Structure
Yongmin Yoon, Changbom Park
We investigate the scatter in the fundamental plane (FP) of early-type galaxies (ETGs) and its dependence on age and internal structure of ETGs, using ETGs with $M_r\le-19…
Cosmological Information from the Small-scale Redshift Space Distortions
Motonari Tonegawa, Changbom Park, Yi Zheng +4
The redshift-space distortion (RSD) in the observed distribution of galaxies is known as a powerful probe of cosmology. Observations of large-scale RSD have given tight constraints…
Cosmological Parameter Estimation from the Two-Dimensional Genus Topology -- Measuring the Shape of the Matter Power Spectrum
Stephen A. Appleby, Changbom Park, Sungwook E. Hong +2
We present measurements of the two-dimensional genus of the SDSS-III BOSS catalogs to constrain cosmological parameters governing the shape of the matter power spectrum. The BOSS d…