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arXiv · 2405.10071

Speckle Interferometry at SOAR in 2023

Andrei Tokovinin·Brian D. Mason·Rene A. Mendez·Edgardo Costa
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Abstract

Results of the speckle-interferometry observations at the 4.1 m Southern Astrophysical Research Telescope (SOAR) obtained during 2023 are presented: 1913 measurements of 1533 resolved pairs or subsystems (median separation 0.16") and non-resolutions 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.

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Andrei Tokovinin, Brian D. Mason, Rene A. Mendez, Edgardo Costa. 2024-05-16. Speckle Interferometry at SOAR in 2023. https://arxiv.org/abs/2405.10071

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