System parameters, transit times and secondary eclipse constraints of the exoplanet systems HAT-P-4, TrES-2, TrES-3 and WASP-3 from the NASA EPOXI Mission of Opportunity

System to estimate ages and redshifts for radio galaxies

Systematic Analysis of 22 Microlensing Parallax Candidates

Systematic analysis of astrophysical S-factors and thermonuclear reaction rates

Systematic and Accidental Errors in the Spectroscopic Absolute Magnitudes of Dwarf Stars of Types f, Late k, and M.

Systematic and external errors of trigonometric parallaxes

Systematic and quantitative approach for the identification of high energy gamma-ray source populations

Systematic astrometric observations of Proteus

Systematic Auroral Motions.

Systematic Bias in 2MASS Galaxy Photometry

Systematic bias in cluster galaxy data, affecting galaxy distances and evolutionary history

Systematic Bias in Cosmic Shear: Beyond the Fisher Matrix

Systematic bias in interstellar magnetic field estimates

Systematic biases on galaxy haloes parameters from Yukawa-like gravitational potentials

Systematic Blueshift of Line Profiles in the Type IIn Supernova 2010jl: Evidence for Post-Shock Dust Formation?

Systematic Center-to-Limb Variation in Measured Helioseismic Travel Times and Its Effect on Inferences of Solar Interior Meridional Flows

Systematic color transformation effects in Stromgren photometry

Systematic Construction of Exact 2-D MHD Equilibria with Steady, Compressible Flow in Cartesian Geometry and Uniform Gravity

Systematic construction of exact MHD models for astrophysical winds and jets

Systematic Continuum Errors in the Lyman-Alpha Forest and The Measured Temperature-Density Relation