Formal proof of some inequalities used in the analysis of the post-post-Newtonian light propagation theory

Four Fundamental Foreground Power Spectrum Shapes for 21 cm Cosmology Observations

Four years of optical turbulence monitoring at the Cerro Tololo Inter-American Observatory (CTIO)

Fourier Disentangling Using the Technology of Virtual Observatory

Fpack and Funpack User's Guide: FITS Image Compression Utilities

Fractal Geometry of Angular Momentum Evolution in Near-Keplerian Systems

Fraction of clear skies above astronomical sites: a new analysis from the GOES12 satellite

Frequency Analysis of the noise in the Fowler(n) sampling of a H2RG(2Kx2K) Near-IR Detector

Frequency Limits on Naked-Eye Optical Transients Lasting from Minutes to Years

Frequency Multiplexed SQUID Readout of Large Bolometer Arrays for Cosmic Microwave Background Measurements

Fresnel diffraction in an interferometer: application to MATISSE

Fresnel Interferometric Imager: ground-based prototype

Fresnel Zone Plate Telescopes as high resolution imaging devices

Fresnel zone plate telescopes for X-ray imaging I: experiments with a quasi-parallel beam

Fresnel zone plate telescopes for X-ray imaging II: numerical simulations with parallel and diverging beams

Fresnel zone plates for Achromatic Imaging Survey of X-ray sources

Fringe Science: Defringing CCD Images with Neon Lamp Flat Fields

From Hipparcos to Gaia

Full Stokes polarimetric observations with a single-dish radio-telescope

Fully Automated Approaches to Analyze Large-Scale Astronomy Survey Data