|Welcome to Prof. Sukyoung K. Yi's group (GEM) homepage
The ultimate goal of our group is to understand the formation and evolution of galaxies. We work on various versions of galaxy formation theories, focusing on dynamical clustering of galaxies and galactic chemical evolution in combination with stellar population synthesis. We extensively, but not exclusively, use SDSS and GALEX data to test our theoretical models.
Improved and Quality-assessed Emission and Absorption Line measurements in Sloan Digital Sky Survey galaxies
Quality assessment for continuum with examples inducing bad fits. This figure shows a quality assessment for a continuum region using randomly selected ~46000 objects. Red crosses denote the median(lower) and 1 σ(upper) distribution for each S/sN bin and orange solid lines fit (note that there is a demarcation line for 1 in the direction of larger rN/sN.). The vertical dashed lines indicate a specific bin and its Gaussian distribution has been inserted on the top side as an example. The color filled dots correspond to the colored spectra and clarify the trend for quality assessments. Furthermore, the major reasons for the bad fits, telluric contaminated spectra and Broad Line Regions, are marked with black crosses.
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Seulhee Oh has been awarded "The best publication award". Yonsei has chosen her bar galaxy paper as one of the 6 best papers published in 2011 by Yonsei students. Congratulations!