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CHIRON - A Fiber Fed Spectrometer for Precise Radial Velocities
Andrei Tokovinin, Debra A. Fischer, Marco Bonati +5
The CHIRON optical high-resolution echelle spectrometer was commissioned at the 1.5m telescope at CTIO in 2011. The instrument was designed for high throughput and stability, with…
Companions to nearby stars with astrometric acceleration. II
Andrei Tokovinin, Markus Hartung, Thomas L. Hayward
Hipparcos astrometric binaries were observed with the NICI adaptive optics system at Gemini-S, completing the work of Paper I (Tokovinin et al. 2012). Among the 65 F, G, K dwarfs w…
SOAR Adaptive Optics Observations of the Globular Cluster NGC6496
Luciano Fraga, Andrea Kunder, Andrei Tokovinin
We present high-quality BVRI photometric data in the field of globular cluster NGC 6496 obtained with the SOAR Telescope Adaptive Module (SAM). Our observations were collected as p…
Kappa Fornaci, a triple radio-star
Andrei Tokovinin
Bright and nearby (22pc) solar-type dwarf Kappa Fornaci (HIP 11072) is a triple system. The close pair of M-type dwarfs Ba,Bb with a tentative period of 3.7 days moves around the m…