Speckle Interferometry at SOAR Telescope in 2023
Andreï Tokovinin, Brian D. Mason, R. A. Méndez, E. Costa
Abstract
Abstract Results of the speckle-interferometry observations at the 4.1 m Southern Astrophysical Research Telescope obtained during 2023 are presented: 1913 measurements of 1533 resolved pairs or subsystems (median separation 0.″16) and nonresolutions of 552 targets; 42 pairs are resolved here for the first time. This work continues our long-term effort to monitor orbital motion in close binaries and hierarchical systems. A large number (147) of orbits have been determined for the first time or updated using these measurements. Complementarity of this program with the Gaia mission is highlighted.
Topics & Concepts
SoarSpeckle imagingTelescopeSpeckle patternInterferometryAstronomyRemote sensingEnvironmental scienceOpticsPhysicsComputer scienceGeographyArtificial intelligenceStellar, planetary, and galactic studiesAdaptive optics and wavefront sensingGamma-ray bursts and supernovae