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dc.contributor.authorSreekanth Reddy, V-
dc.contributor.authorBanyal, R. K-
dc.contributor.authorSridharan, R-
dc.contributor.authorAishwarya, S-
dc.identifier.citationResearch in Astronomy and Astrophysics, Vol. 19, No. 5, 74en_US
dc.descriptionRestricted Accessen_US
dc.description.abstractWe report atmospheric turbulence parameters, namely atmospheric seeing, tilt-anisoplanatic angle (θ 0) and coherence time (τ 0), measured under various sky conditions, at Vainu Bappu Observatory in Kavalur. Bursts of short exposure images of selected stars were recorded with a high-speed, frame-transfer CCD mounted on the Cassegrain focus of a newly commissioned 1.3 m telescope. The estimated median seeing is ≈ 1.85'' at wavelength of ~ 600 nm, the image motion correlation between different pairs of stars is ~ 44% for θ 0 ≈ 36'' and mean τ 0 is ≈ 2.4 ms. This work was motivated by the design considerations and expected performance of an adaptive optics system that is currently being planned for the telescopeen_US
dc.publisherIOP Publishingen_US
dc.rights© IOP Publishing-
dc.subjectAtmospheric effectsen_US
dc.subjectInstrumentation: adaptive opticsen_US
dc.subjectMethods: observationalen_US
dc.titleMeasurements of atmospheric turbulence parameters at Vainu Bappu Observatory using short-exposure CCD imagesen_US
Appears in Collections:IIAP Publications

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