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The Stellar Number Density Distribution in the Local Solar Neighborhood is North-South Asymmetric
Brian Yanny, Susan Gardner
We study the number density distribution of a sample of K and M dwarf stars, matched North and South of the Galactic plane within a distance of 2 kpc from the sun, using observatio…
Carbon-enhanced Metal-poor Stars in SDSS/SEGUE. I. Carbon Abundance Estimation and Frequency of CEMP Stars
Young Sun Lee, Timothy C. Beers, Thomas Masseron +8
We describe a method for the determination of stellar [C/Fe] abundance ratios using low-resolution (R = 2000) stellar spectra from the SDSS and SEGUE. By means of a star-by-star co…
Star/galaxy separation at faint magnitudes: Application to a simulated Dark Energy Survey
M. T. Soumagnac, F. B. Abdalla, O. Lahav +17
We address the problem of separating stars from galaxies in future large photometric surveys. We focus our analysis on simulations of the Dark Energy Survey (DES). In the first par…