Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984spie..445..199j&link_type=abstract
IN: Instrumentation in astronomy V; Proceedings of the Fifth Meeting, London, England, September 7-9, 1983 (A85-25360 10-89). Be
Astronomy and Astrophysics
Astronomy
Image Intensifiers, Photodiodes, Stellar Spectrophotometry, Telescopes, Vidicons, Calibrating, Cooling Systems, Gratings (Spectra), Signal To Noise Ratios, Silicon Junctions
Scientific paper
The performance and astronomical calibrations of a cooled intensified silicon vidicon detector are described. The spectrometer comprises a standard grating, classification dispersion spectrograph (22.4 nm/mm in the first order, 11.2 nm/mm in the second order). Measurements of differential extinction have been obtained from observations of the spectrophotometric standard HR 4295 (mv = 2.37, A1V). Astronomical observations using a 60-cm telescope indicate that the spectra of 12.5 magnitude stars may be obtained with an S/N of 10 with a one-hour integration. After corrections for differential extinction and instrumental response, the agreement between derived and published relative intensities is 3 percent.
Jeffers Sandra
Stiff T.
Weller William G.
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