This instrument is based on Carl Zeiss Jena instrument 208435 Just one channel can be measured at a time. It was equipped with the possibility to measure precise position and read the counts from the detector.
The primal use of this device is to digitize astronomical (stellar) spectra. The basic instructions, how to use the device can be found here (just in Slovak language).
To reduce the data obtained from the device the user is supposed to use the code SPEFO by dr. Horn. The user must supply some information about the measured spectrogram: photometric calibration, list of comparison lines, date and time of exposure, location of the observatory, coordinates of the observed objects, etc.
To describe the properties of the photometric calibration within SPEFO file named logint.dat is used.
name | region | lamp | used at the observatory | remarks |
---|---|---|---|---|
Fe_arc_Ondrejov | UBVR | Fe arc | Ondrejov, Czech Republic | complete atlas, no SPEFO-ready file |
Fe_arc_UB | UB | Fe arc | Ondrejov, Czech Republic | |
Fe_arc_BVR | BVR | Fe arc | Ondrejov, Czech Republic | |
Fe_arc_UB_DAO_15 | UB | Fe arc | Dominion Astrophysical Observatory, Canada | 15 A/mm |
Ar_Fe_UB_DAO_10_6 | UB | Ar + Fe | Dominion Astrophysical Observatory, Canada | 10, 6 A/mm |
Some other atlases of comparison spectra: NOAO.
SPEFO uses a list of stellar lines which are to be measured. You can chcek the format of this file in the example for Balmer's lines: balmer.stl.
Last update: June 08, 2005