An astronomical polarimeter

Details An astronomical polarimeter An astronomical polarimeter

Jun 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985basi...13..157d&link_type=abstract

Astronomical Society of India, Bulletin, vol. 13, June 1985, p. 157-161. Research supported by the Department of Space and Space

Astronomy and Astrophysics

Astronomy

34

Astronomy, Polarimeters, Calibrating, Microprocessors, On-Line Systems, Polarization (Waves)

Scientific paper

A polarimeter for the study of astronomical objects has been developed and calibrated. Observations of several objects have been made. The polarimeter covers the spectral range from 3150 A to 8500 A in standard N, U, B, V, R, I bands. Alternatively, narrow band filters between 3150 A and 8500 A can also be used. The instrument is capable of measuring polarization down to 0.03 percent with an error of 0.03 percent for objects of fifth magnitude on a 1-m telescope. The instrument has a microprocessor-controlled data acquisition system with on-line processing capabilities. In addition to affecting polarization measurements, the instrument can also be used as a photometer.

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