82 citations · 145 across the 9 of their papers we have counts for
11 papers
Barflow: Modeling Gas Kinematics of Bar-Driven Flows
Seungwon Baek, Woong-Tae Kim, Taehyun Kim +2
We present self-consistent -body/hydrodynamical simulations of isolated, Milky Way-like galaxies with stellar and gaseous disks. By varying the initial gas fraction, we find tha…
SMUGGLE-Ring: Evolutionary link between nuclear star cluster and nuclear disk
SungWon Kwak, Mathias Schultheis, Ivan Minchev +8
We present a high-resolution hydrodynamical simulation of the formation and evolution of nuclear structures in a Milky Way-mass galaxy using the SMUGGLE model. The system naturally…
The SMUGGLE-Ring project: Bar and bulge effects on nuclear disk and ring formation
SungWon Kwak, Federico Marinacci, Matthias Steinmetz +8
We present the first results from the SMUGGLE-Ring project, a suite of simulations employing the SMUGGLE ISM and stellar feedback model to explore nuclear structures in Milky Way-m…
Effects of resolution and local stability on galactic disks: Halo resolution and softening on bar formation
SungWon Kwak, Ivan Minchev, Matthias Steinmetz +1
Using N-body simulations, we examine the impact of dark matter (DM) halo resolution and gravitational softening on bar formation. We generate isolated disk-halo systems with fixed…
On the Use of Field RR Lyrae as Galactic Probes -- VIII. Early Formation of the Galactic Spheroid
G. Bono, V. F. Braga, M. Fabrizio +54
We introduce a new photometric catalog of RR Lyrae variables (RRLs, 300,000) mainly based on data available in public datasets. We also present the largest and most homogeneo…
On the Use of Field RR Lyrae as Galactic Probes. VI. Mixed mode RR Lyrae variables in Fornax and in nearby dwarf galaxies
V. F. Braga, G. Fiorentino, G. Bono +11
We investigate the properties of the mixed-mode (RRd) RR Lyrae (RRL) variables in the Fornax dwarf spheroidal (dSph) galaxy by using - and -band time series collected over tw…
On the Use of Field RR Lyrae as Galactic Probes. V. Optical and radial velocity curve templates
V. F. Braga, J. Crestani, M. Fabrizio +29
We collected the largest spectroscopic catalog of RR Lyrae (RRLs) including 20,000 high-, medium- and low-resolution spectra for 10,000 RRLs. We provide the analy…
Origin of Non-axisymmetric Features of Virgo Cluster Early-type Dwarf Galaxies. II. Tidal Effects on Disk Features and Stability
SungWon Kwak, Woong-Tae Kim, Soo-Chang Rey +1
A fraction of dwarf galaxies in the Virgo cluster contain disk features like bars and spiral arms. Using -body simulations, we investigate the effects of tidal forces on the for…
The Geometric Albedo of (4179) Toutatis Estimated from KMTNet DEEP-South Observations
Yoonsoo P. Bach, Masateru Ishiguro, Sunho Jin +6
We derive the geometric albedo of a near-Earth asteroid, (4179) Toutatis, to investigate its surface physical conditions. The asteroid has been studied rigorously not only via grou…
Effects of Gas on Formation and Evolution of Stellar Bars and Nuclear Rings in Disk Galaxies
Woo-Young Seo, Woong-Tae Kim, SungWon Kwak +3
We run self-consistent simulations of Milky Way-sized, isolated disk galaxies to study formation and evolution of a stellar bar as well as a nuclear ring in the presence of gas. We…
Origin of Non-axisymmetric Features of Virgo Cluster Early-type Dwarf Galaxies. I. Bar Formation and Recurrent Buckling
SungWon Kwak, Woong-Tae Kim, Soo-Chang Rey +1
A fraction of early-type dwarf galaxies in the Virgo cluster have a disk component and even possess disk features such as bar, lens, and spiral arms. In this study, we construct 15…