Auto-correlation of Binary stars

Details Auto-correlation of Binary stars Auto-correlation of Binary stars

2001-06-07

arxiv.org/abs/astro-ph/0106119v1

Astronomy and Astrophysics

Astrophysics

8 pages Latex files including figures. Ind. J. Physics, 2001 (accepted for publication)

Scientific paper

Speckle interferometric technique is used to record a series of short exposure images of several close binary stars with sub-arcsecond separation through a narrow band filter centred at H$\alpha$ at the Cassegrain focus of the 2.34 meter Vainu Bappu telescope (VBT), situated at Vainu Bappu Observatory (VBO), Kavalur. The auto-correlation method is developed under Image Reduction Analysis Facility (IRAF). Wiener filter is included in the programme to eliminate spurious high frequency contributions; a few sets of data provide the optimised results. The auto-correlated image of these stars gives the separation of the binary components.

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