based on the tunable acousto-optical filter is designed for the acquisition
of data combining simultaneously both high spatial resolution and high
spectral resolution. The spectrometer is intended mostly for study the
planets and the emission objects - planetary nebulae and Seyfert galaxies
- to get images at different wavelengths.
can be useful for study the variability of emission lines in AGNs (active
galactic nuclei), such as Seyfert galaxies and quasars. The spectrometer
possesses very large optical input aperture and large optical angular
aperture. Special optical geometry of the acousto-optical filter is
used in order to keep the direction of the optical axis the same. These
constructive features of the device provide easy way for its installation
into the telescope because the complicated additional optics is not
needed. The spectrometer can be used with any typical f/12 - f/20 Cassegrain
telescope and with any typical CCD camera. The computer-controlled two-channel
driver system provides the potential capability for the correlation
Literature: V.Ya. Molchanov at al. "An acousto-optical imaging
spectrophotometer for astrophysical observations", Astronomy Letters,
vol.28, No.10, 2002, pp. 713-720.
Remarks: spectral ranges 400-630 nm, 1100-2300 nm and 2300 -
4800 nm are also available.