Abstract
TAURUS, an imaging Fabry-Perot system, was developed as a collaborative project by the Royal Greenwich Observatory and Imperial College London and is capable of obtaining seeing limited velocity field information over a 9 arcminute field on a 4 m telescope. At the detector (the IPCS) the image of the source is- modified by the fringe pattern of the capacitatively stabilized servo-controlled Fabry-Perot. As the Fabry-Perot is scanned, this fringe pattern tracks radially across the field and each pixel of the detector maps out a spectral line profile within the bandpass of the “blocking” interference filter. At each F-P spacing a picture (Typically 256 × 256 pixels) is recorded on computer disk. {dy100 }pictures make up a complete scan, covering for example 1,200 km sec-1 free spectral range (this range in practice depends on the particular etalon). In this manner a 3 D data cube of the field is built up where (X, Y, Z) are typically (256 pixels, 256 pixels, 100 steps).
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References
Taylor K. Atherton P.D. MNRAS 191, 675, 1980.
Atherton P.D. Taylor K. Pike C.D. Harmer C. Parker N.M. Hook R.N. MNRAS, 200, 1982.
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© 1983 International Astronomical Union
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Atherton, P.D., Taylor, K. (1983). TAURUS — A Wide Field Imaging Fabry-Perot Spectrometer. In: Athanassoula, E. (eds) Internal Kinematics and Dynamics of Galaxies. International Astronomical Union/Union Astronomique Internationale, vol 100. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-7075-5_6
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DOI: https://doi.org/10.1007/978-94-009-7075-5_6
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