The Dutch Open Telescope
The Dutch Open Telescope (DOT) is an innovative optical solar telescope at the Roque de los Muchachos Observatory in the Canary Islands. Its angular resolution reaches the diffraction limit of the 45-cm aperture (0.2-arcsec in the visible) through combining an excellent wind-swept site, a fully open design of the telescope and support tower, sufficient mechanical rigidity to rely on wind flushing without shake, and consistent application of speckle imaging and reconstruction in all data acquisition. Its successful demonstration of the open-telescope principle presently inspires major solar-telescope projects aiming at adaptively corrected spectropolarimetry. The DOT science niche consists of high-resolution large-field tomography of the solar photosphere and chromosphere, and will remain one in which small telescopes excel.
Unable to display preview. Download preview PDF.
- Beckers J. M., 1989, in R. J. Rutten, G. Severino (eds.), Solar and Stellar Granulation, NATO ASI Series C 263, Kluwer, Dordrecht, p. 43Google Scholar
- Beckers J. M., 2000, Proc. SPIE 4007, 1056Google Scholar
- Hammerschlag R. H., 1981, in R. B. Dunn (ed.), Solar Instrumentation: What’s Next?, Proc. Sacramento Peak National Observatory Conference, Sunspot, New Mexico, p. 547Google Scholar
- Sutterlin P., Hammerschlag R. H., Bettonvil F. C. M., Rutten R. J., Skomorovsky V. I., Domyshev G. N., 2001a, in M. Sigwarth (ed.), Advanced Solar Polarimetry—Theory, Observation, and Instrumentation, Procs. 20th NOS/SP Summer Workshop, ASP Conf. Ser., Vol. 236, p. 431Google Scholar
- Sutterlin P., Rutten R. J., Somorovsky V. I., 2001b, A&A in pressGoogle Scholar
- Yang G., Denker C., Wang H., 2001, in American Geophysical Union, Spring Meeting 2001, abstract #SP21B-04, p. 21B04Google Scholar