Estimate of the optimum measuring time in the synchronous photometry of optical sources

Details Estimate of the optimum measuring time in the synchronous photometry of optical sources Estimate of the optimum measuring time in the synchronous photometry of optical sources

May 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977ap%26ss..48...53r&link_type=abstract

Astrophysics and Space Science, vol. 48, no. 1, May 1977, p. 53-56. Research supported by the Consiglio Nazionale delle Ricerche

Astronomy and Astrophysics

Astrophysics

Astronomical Photometry, Signal To Noise Ratios, Data Reduction, Error Analysis, Optimization, Quantum Counters, Signal Analysis, Truncation Errors

Scientific paper

The note shows how to estimate accurately the optimum measuring time in the measure- ment of a periodical optical source by means of a synchronous photometer affected by phase-tracking error. The procedure used can be easily generalized to sources or signal patterns not considered here. The optimum number of scans to be averaged results to be typically N0~~ O.5r/c for an optical source of Lorentzian signal pattern, where r is the duty cycle of the pulsed component and e the relative truncation error of the local sync to the source period

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