758 citations · 1.5k across the 10 of their papers we have counts for
10 papers
Testing the effect of progenitor's metallicity on Ni mass and constraining the progenitor scenarios in Type Ia supernovae
Young-Lo Kim, Chul Chung, Yong -Cheol Kim
The analytical model found that the intrinsic variation in the initial metallicity of the Type Ia supernova (SN Ia) progenitor stars () translates into a 25% variat…
The effects of individual metal contents on isochrones for C, N, O, Na, Mg, Al, Si, and Fe
Minje Beom, Chongsam Na, Jason W. Ferguson +1
The individual characteristics of C, N, O, Na, Mg, Al, Si, and Fe on isochrones have been investigated in this study. Stellar models have been constructed for various mixtures in w…
The radius discrepancy in low mass stars: single vs. binaries
F. Spada, P. Demarque, Y. -C. Kim +1
A long-standing issue in the theory of low mass stars is the discrepancy between predicted and observed radii and effective temperatures. In spite of the increasing availability of…
Impact of the low solar abundance on the ages of globular clusters
Sukyoung K. Yi, Yong -Cheol Kim
We present the result of our investigation on the impact of the low Solar abundance of Asplund and collaborators (2004) on the derived ages for the oldest star clusters based on is…
Pre-Main Sequence Evolutions of Solar Abundance Lowmass Stars
Youn Kil Jung, Yong-Cheol Kim
We present the Pre-Main-Sequence (PMS) evolutionary tracks of stars with 0.0065~5.0Ms. The models were evolved from the PMS stellar birthline to the onset of hydrogen burning in th…
BVRI Light Curves for 22 Type Ia Supernovae
Adam G. Riess, Robert P. Kirshner, Brian P. Schmidt +6
We present 1210 Johnson/Cousins B,V,R, and I photometric observations of 22 recent type Ia supernovae (SNe Ia): SN 1993ac, SN 1993ae, SN 1994M, SN 1994S, SN 1994T, SN 1994Q, SN 199…
BVRI Light Curves for 29 Type Ia Supernovae
Mario Hamuy, M. M. Phillips, Nicholas B. Suntzeff +2
BVRI light curves are presented for 27 Type Ia supernovae discovered during the course of the Calan/Tololo Survey and for two other SNe Ia observed during the same period. Estimate…
The theoretical calculation of the Rossby number and the `non-local' convective overturn time for pre-main sequence and early post-main sequence stars
Yong -Cheol Kim, Pierre Demarque
This paper provides estimates of convective turnover time scales for Sun-like stars in the pre-main sequence and early post-main sequence phases of evolution, based on up-to-date p…
The OPAL Equation of State and Low Metallicity Isochrones
Brian Chaboyer, Yong --Cheol Kim
The Yale stellar evolution code has been modified to use the OPAL equation of state tables (Rogers 1994). Stellar models and isochrones were constructed for low metallicity systems…
Modelling of Shallow and Inefficient Convection in the Outer Layers of the Sun Using Realistic Physics
Yong -Cheol Kim, Peter A. Fox, Sabatino Sofia +1
In an attempt to understand the properties of convective energy transport in the solar convection zone, a numerical model has been constructed for turbulent flows in a compressible…