First Spectroscopic Identification of Massive Young Stellar Objects in the Galactic Center

First stars XII. Abundances in extremely metal-poor turnoff stars,and comparison with the giants

First Views of a Nearby LIRG: Star Formation and Molecular Gas in IRAS 04296+2923

First VLF detections of ionospheric disturbances due to Soft Gamma ray Repeater SGR J1550-5418 and Gamma Ray Burst GRB 090424

Fitting galaxy spectra with STECKMAP: a user guide

Fitting LINER nuclei within the AGN family: A matter of obscuration?

Fitting orbits to tidal streams with proper motions

Five E+A (post-starburst) galaxies as Brightest Cluster Galaxies

Five More Massive Binaries in the Cygnus OB2 Association

Five Point Mass Gravitational Lenses in a Rhombus as a Soluble Model Giving the Maximum Number of Images

Flares and Proper Motions of Ground-State OH Masers in W75N

Flares from Sgr A* and their emission mechanism

Flat-Spectrum Radio Quasars from SDSS DR3 Quasar Catalogue

Flaws in the perfect bubble

Flow-Driven Cloud Formation and Fragmentation: Results From Eulerian and Lagrangian Simulations

Flows along cometary tails in the Helix planetary nebula NGC 7293

Fluorine abundances in dwarf stars of the solar neighbourhood

Fomalhaut debris disk emission at 7 millimeters: constraints on the collisional models of planetesimals

Forced turbulence in thermally bistable gas: A parameter study

Formaldehyde and methanol deuteration in protostars: fossiles from a past fast high density pre-collapse phase