On the Calibration of Astronomical Spectrograms

Fred Sanner
1976 Publications of the Astronomical Society of the Pacific  
It is shown that multiple exposures of a stellar spectrum are internally calibrating if the relative exposures are known. It should therefore be possible to retrieve a portion of the existing stellar spectroscopic data having no Sensitometer calibration.
doi:10.1086/130058 fatcat:7r77mabebjfo5i75ap5abfpnx4