929 datasets found

Microlensing events have been observed regularly by surveys such as MACHO, OGLE and MOA. They offer an excellent way to probe the galactic structure, kinematics and stellar...

Using speckle-interferometry we have carried out repeated measurements of relative positions for the components of 34 T Tauri binary systems. The projected separation of these...

Sirius has been discovered as double more than 130 years ago. From the beginning of our century up to now, observational as well as physical and dynamical indications lead to...

The catalogue is a compilation of the principal observed parameters of pulsars, including positions, timing parameters, pulse widths, flux densities, proper motions, distances,...

PolarBase is an evolving data base that contains all stellar data collected with the ESPaDOnS and NARVAL high-resolution spectropolarimeters, in their reduced form, as soon as...

This data collection contains the DELTA_B RDR files in the Mercury Solar Orbital (MSO) coordinates system.

This data collection contains the DELTA_B RDR files in the Mercury Solar Orbital (MSO) coordinates system.

Faraday rotation measures (RMs) and more general Faraday structures are key parameters for studying cosmic magnetism and are also sensitive probes of faint ionized thermal gas....

The radial-velocity observations were made during the years 1989-1997 with the photoelectric scanner CORAVEL (Mayor, 1985IAUCo..88...35M) on the Danish 1.54-m telescope at ESO,...