A multichannel multicolour photometer for high time resolution

Details A multichannel multicolour photometer for high time resolution A multichannel multicolour photometer for high time resolution

Mar 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...175..327b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 175, no. 1-2, March 1987, p. 327-344. Research supported by the Max-Planck-Ins

Physics

Optics

43

Astronomical Photometry, High Resolution, Microchannel Plates, Spectrophotometers, Temporal Resolution, Data Reduction, Fiber Optics, Quantum Efficiency, Spectroscopic Telescopes, Statistical Analysis

Scientific paper

In order to increase the range of applicability of photometric observations a photon counting instrument with 15 simultaneous photomultiplier channels has been developed. The 15 channels result from UBVRI colours of three sources selected by three quartz fibers in the focal plane of the telescope. The time resolution can be selected to lie between 10 ms and 25.5 s. Furthermore the system provides on-line graphics and statistical analysis. This paper describes in detail the instrument, the software facilities, observing methods and reduction procedures. Problems concerning the accuracy, especially with respect to the differences compared with the classical single channel photometric techniques are described and some demonstrative results are given.

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