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K-DRIFT Science Theme: New Theoretical Framework using the Galaxy Replacement Technique for LSB Studies KCI 등재 SCOPUS
- 언어ENG
- URLhttps://db.koreascholar.com/Article/Detail/449360
pp.141-154
Low-surface-brightness (LSB) structures provide critical insights into the hierarchical formation of galaxies and galaxy clusters. The KASI Deep Rolling Imaging Fast Telescope (K-DRIFT) is designed to detect such diffuse features through deep, wide-field optical imaging with a surface brightness reaching ∼30 mag arcsec−2. To interpret the observational data expected from KDRIFT, we have developed the Galaxy Replacement Technique (GRT), an N-body simulation framework optimized for tracing the gravitational evolution of stellar components. The GRT works by inserting high-resolution galaxy models, including a dark matter (DM) halo and stellar disk, in place of multiple low-resolution DM halos in the base N-body cosmological simulation. It allows us to achieve very high mass (mstar = 5.4×104M⊙ h−1) and spatial resolution (10 pc h−1) with shorter computation time compared to full hydrodynamic cosmological simulations. Therefore, this technique is particularly well-suited for studying LSB structures, with a surface brightness reaching ∼31 mag arcsec−2. In this paper, we present the motivation and methodology of the GRT, summarize key results from previous studies, and highlight its synergy with K-DRIFT observations. We further discuss planned science cases using the GRT, aiming to build a theoretical basis for interpreting LSB features in various environments.
GRT Simulations as a Framework for LSB Studies with K-DRIFT
K-DRIFT: Deep Imaging for Faint Structures
GRT: A Simulation Approach
LSB Studies using GRT Simulations
Fraction of Diffuse Light
Formation Channels of Diffuse Light
Tidal Features in Clusters
The Effect of the Observational Limits on the LSB Structures
GRT-Driven Science Cases for K-DRIFT
Summary
Acknowledgments
References
