Reduction of CCD observations with scanning Fabry-Perot interferometer
نویسنده
چکیده
The algorithms used for reduction of data obtained in a Fabry-Perot interferometer mode of the new focal reducer of the 6m telescope SCORPIO are described. The main attention is focused on the procedures of photometry correction of channels and night sky emission subtraction, which is especially important for observations with a CCD in comparison with a photon counter. The influence of various sources of errors on measurements of radial velocities in a data cube is investigated. Examples of velocity field construction by using emission lines in the galaxy NGC6951 and absorption lines in the globular cluster M71 are presented.
منابع مشابه
Reduction of CCD Observations Made with the Fabry-Perot Scanning Interferometer. II. Additional Procedures
We describe a software package used at the Special Astrophysical Observatory of the Russian Academy of Sciences to reduce and analyze the data obtained with the Fabry-Perot scanning interferometer. We already described most of the algorithms employed in our earlier Paper I (Moiseev, 2002). In this paper we focus on extra procedures required in the case of the use of a high-resolution Fabry-Pero...
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