Spectrophotometry with a self-scanned silicon photodiode array. I - Instrumentation and reductions

Details Spectrophotometry with a self-scanned silicon photodiode array. I - Instrumentation and reductions Spectrophotometry with a self-scanned silicon photodiode array. I - Instrumentation and reductions

Jan 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apjs...45...73c&link_type=abstract

Astrophysical Journal Supplement Series, vol. 45, Jan. 1981, p. 73-81.

Astronomy and Astrophysics

Astrophysics

20

Photodiodes, Spectrometers, Stellar Spectrophotometry, Data Reduction, Gauss Equation, Oxygen, Silicon Radiation Detectors

Scientific paper

A conventional spectrometer equipped with a Reticon photodiode array as a detector was used to demonstrate the applicability of such arrays to accurate stellar spectrophotometry. Spectra were obtained at 42-A resolution from 4650 to 10,000 A. High SNRs were obtainable to 10 mag, with typical integration times of a few minutes. Tests on Alpha Lyrae demonstrate the resultant flux distributions to be reduced to the absolute flux scale to within + or - 0.025 mag (standard deviation of a single observation) in zero point and internally precise to + or - 0.003 mag.

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