Galactic astronomy with AO: Nearby star clusters and moving groups
T. J. Davidge
TL;DR
This paper discusses adaptive optics observations of nearby star clusters and moving groups, highlighting recent results and future prospects for high-resolution galactic astronomy.
Contribution
It presents new AO observations of star clusters and moving groups, demonstrating current capabilities and outlining future research directions.
Findings
No brown dwarf companion detected around Sirius A in the observed area.
AO systems enable detailed studies of star clusters and moving groups.
Future AO observations can further elucidate stellar populations.
Abstract
Observations of Galactic star clusters and objects in nearby moving groups recorded with Adaptive Optics (AO) systems on Gemini South are discussed. These include observations of open and globular clusters with the GeMS system, and high Strehl L' observations of the moving group member Sirius obtained with NICI. The latter data fail to reveal a brown dwarf companion with a mass in excess of 0.02 solar in an 18 x 18 arcsec^2 area around Sirius A. Potential future directions for AO studies of nearby star clusters and groups with systems on large telescopes are also presented.
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