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astro-ph2007
Spectroscopic Surveys: Present
Ching-Wa Yip
I summarize the current spectroscopic sky surveys and some of the scientific results, emphasizing the largest sky survey to-date, the Sloan Digital Sky Survey (SDSS). Techniques us…
astro-ph2007
Radial Dependency of Stellar Population Properties in Disk Galaxies from SDSS Photometry
Ching-Wa Yip, Rosemary F. G. Wyse
The evolution of stellar disks is of great importance for understanding many aspects of galaxy formation. In this work we perform stellar population synthesis on radially resolved…
astro-ph2007
Separating Physical Components from Galaxy Spectra by Subspace Methods
Ching-Wa Yip, Alex S. Szalay, Andrew Connolly +1
Using subspace methods, we study the distribution of physical components of galaxies in wavelength space. We find that it is valid to assume that the stellar and the gaseous compon…