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Catalogue of wide binaries
The list contains a total of 131 binaries (115 systems) belonging to the halo or high-velocity disk. Of these, 122 correspond to wide binaries, that is, binaries with expected... -
T Tauri stars in the Sco-Cen OB association
We report the results of a search for binarity among young stars, performed in the Scorpius-Centaurus OB association on a sample of 118 X-ray selected T Tauri stars. We use... -
Very low mass stars radial velocities
We have obtained adaptive optics images and accurate radial velocities for 7 very low mass objects, In the course of a long term effort to determine accurate masses for very low... -
Binary speckle measurements at Calar Alto. I.
We present the first results of our speckle interferometric measurements of binary stars made with the ICCD speckle camera using the 1.52-m telescope of the Observatorio... -
Speckle observations of binary systems
From speckle observations made with the PISCO speckle camera at the Pic du Midi Observatory, we present high angular resolution astrometric data for 43 binary stars already... -
Double stars measurements at Nice Obs.
We present (table 1) the measurements of 58 visual double stars made in 1999 and 2000 with the 50 cm refractor of the Nice Observatory and attached CCD camera, using an... -
CCD photometry and astrometry of double stars
We present new astrometric and photometric data for 253 visual double stars of the "intermediate" class, i.e. with angular separations in the range 1 to 15 arcsec. The... -
Radial velocity in multiple systems
New close sub-systems are reported and studied in eight visual multiple systems. Elements of one double-lined and eight single-lined spectroscopic orbits are given. Magnitudes,... -
JHK photometry of Praesepe low-mass stars
File table 1 contains the list of low-mass Praesepe stars observed with adaptive optics and which were not resolved as multiple systems. Cone search capability for table... -
Near-IR observations of young binaries
Using near-infrared speckle interferometry we have obtained resolved JHK-photometry for the components of 58 young binary systems. Cone search capability for table... -
Equivalent widths of 6 binaries
We performed a careful differential abundance analysis of individual components of six main sequence binaries with separations of a few hundreds of AU. To reduce analysis... -
CCD measurements of double stars
We present measurements of visual double stars made by CCD imaging from 1996 to 1999. In the article, Table 1 contains the measurements of 51 binaries with known orbit. The... -
Spectroscopic sub-systems in multiple stars
A large sample of visual multiples of spectral types F5-M has been surveyed for the presence of spectroscopic sub-systems. In table 1 we provide basic identifiers for the... -
Sco OB2 association
To investigate the dependence of (visual) binarity characteristics on the primary component mass, we selected all stars of spectral type B in Sco OB2 association and searched... -
BV light curves of V511 Lyr in 1994-1996
Our time series analysis of sixteen BV light curves of the chromospherically active binary V511 Lyr confirmed the 2.7days rotation period uniquely. The seasonal periodicity... -
Variability of WR 86
The tables present photometric monitoring of WR 86 in the Walraven VBLUW system during two nights in July 1989, three nights in May/June 1990 and six nights in June 1990,... -
Orientation of orbits in triple stars
A sample of visual syb-systems from the Multiple Star Catalog (Tokovinin, 1997, Cat. ) is selected where the apparent sense of rotation (prograde or retrograde) at two adjacent... -
UBV(RI)c photometry of 7 symbiotic stars
The Asiago photographic archive has been searched for plates containing the symbiotic stars Hen 2-468, QW Sge, LT Del, V407 Cyg, K 3-9, V335 Vul, FG Ser and Draco C-1. A total... -
Speckle interferometry of nearby multiple stars
We present the results of diffraction-limited optical speckle interferometry and infrared bispectrum speckle interferometry of 111 double and 10 triple systems performed in... -
Double star measurements at Nice Obs.
We present (table 1) the measurements of 167 visual double stars, made in 2000 and 2001 with the 50 cm refractor of the Nice Observatory and attached CCD camera, using an...
