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The Updated Multiple Star Catalog
Andrei Tokovinin
The catalog of hierarchical stellar systems with three or more components is an update of the original 1997 version of the MSC. For two thousand hierarchies, the new MSC provides d…
New binaries in the epsilon Cha association
Cesar Briceno, Andrei Tokovinin
We present Adaptive Optics-aided speckle observations of 47 young stars in the Cha association, made at the 4-m Southern Astrophysical Research Telescope in the -band. We re…
New orbits based on speckle interferometry at SOAR. II
Andrei Tokovinin
Orbits of 44 close and fast visual binaries are computed using the latest speckle observations; 23 orbits are determined for the first time, the rest are revisions, some quite subs…
Orbit alignment in triple stars
Andrei Tokovinin
Statistics of the angle Φbetween orbital angular momenta in hierarchical triple systems with known inner visual or astrometric orbits are studied. Correlation between apparent revo…
Formation of wide binary stars from adjacent cores
Andrei Tokovinin
Wide gravitationally bound pairs of stars can be formed from adjacent prestellar cores that happen to move slowly enough relative to each other. These binaries are remnants of the…
Relative orbit orientation in several resolved multiple systems
Andrei Tokovinin, David W. Latham
This work extends the still modest number of multiple stars with known relative orbit orientation. Accurate astrometry and radial velocities are used jointly to compute or update o…