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Improving Cosmological Distance Measurements by Reconstruction of the Baryon Acoustic Peak
Daniel J. Eisenstein, Hee-jong Seo, Edwin Sirko +1
The baryon acoustic oscillations are a promising route to the precision measure of the cosmological distance scale and hence the measurement of the time evolution of dark energy. W…
Initial conditions to cosmological N-body simulations, or how to run an ensemble of simulations
Edwin Sirko
The conventional method of generating initial conditions for cosmological N-body simulations introduces a significant error in the real-space statistical properties of the particle…
Blue horizontal branch stars in the Sloan Digital Sky Survey: II. Kinematics of the Galactic halo
Edwin Sirko, Jeremy Goodman, Gillian R. Knapp +6
We carry out a maximum-likelihood kinematic analysis of a sample of 1170 blue horizontal branch (BHB) stars from the Sloan Digital Sky Survey presented in Sirko et al. (2003) (Pape…
Blue horizontal branch stars in the Sloan Digital Sky Survey: I. Sample selection and structure in the Galactic halo
Edwin Sirko, Jeremy Goodman, Gillian R. Knapp +6
We isolate samples of 733 bright (g < 18) and 437 faint (g > 18) high-Galactic latitude blue horizontal branch stars with photometry and spectroscopy in the Sloan Digital Sky Surve…