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Development of image motion compensation system for 1.3 m telescope at Vainu Bappu Observatory
Sreekanth Reddy, Ravinder Kumar Banyal, Sridharan R +2
We developed a tip-tilt system to compensate the turbulence induced image motion for 1.3 m telescope at Vainu Bappu Observatory, Kavalur. The instrument is designed to operate at v…
High-resolution Infrared Spectrograph for Exoplanet Characterization with the Keck and Thirty Meter Telescopes
Dimitri Mawet, Michael Fitzgerald, Quinn Konopacky +46
HISPEC (High-resolution Infrared Spectrograph for Exoplanet Characterization) is a proposed diffraction-limited spectrograph for the W.M. Keck Observatory, and a pathfinder for the…
Estimation and correction of the instrumental perturbations of Vainu Bappu Telescope Echelle spectrograph using a model-based approach
Sireesha Chamarthi, Ravinder K. Banyal, Sriram Sripadmanabhan
The Echelle spectrograph operating at Vainu Bappu Telescope (VBT), India, is a general purpose instrument used for many high-resolution spectroscopic observations. A concerted effo…
Toward precision radial velocity measurements using Echelle spectrograph at Vainu Bappu Telescope
Sireesha Chamarthi, Ravinder K. Banyal, S. Sriram
The Echelle spectrograph operating at Vainu Bappu Telescope (VBT) is a general purpose instrument designed for high resolution spectroscopy. It is being considered for precision Do…
Measurements of atmospheric turbulence parameters at Vainu Bappu Observatory using short-exposure CCD images
Sreekanth Reddy, Ravinder Kumar Banyal, Sridharan R +1
We report the atmospheric turbulence parameters namely, atmospheric seeing, the tilt-anisoplanatic angle () and the coherence time (), measured under various sky conditio…