PROJECT OF THE LARGE SOLAR TELESCOPE WITH MIRROR 3 M IN DIAMETER
Rubrics: REVIEWS
Abstract and keywords
Abstract (English):
One of the most important problems of modern solar physics is the observation of the small-scale structure of the solar atmosphere at various heights (including the chromosphere and corona) in different spectral lines. Such observations can be made only with large solar telescopes whose main mirror has a diameter of at least 3 m. Currently, several large solar telescopes are under construction or development in the world. In 2013 in Russia, the work began on the development of a national large solar telescope with a mirror 3 m in diameter (LST-3), which is a part (subproject) of the National Heliogeophysical Complex of the Russian Academy of Sciences. The telescope is planned to be located in the Sayan Solar Observatory at an altitude of more than 2000 m. The choice was made in favor of the classic axisymmetric Gregory optical layout on an alt-azimuth mount. The scientific equipment of LST-3 will consist of several systems of narrow-band tunable filters and spectrographs for various wave ranges. The equipment will be placed both in the main coude focus on a rotating platform and in the Nasmyth focus. To achieve a diffraction resolution, high-order adaptive optics (AO) will be used. It is assumed that with a certain modification of the optical configuration, LST-3 will work as a 0.7 m mirror coronograph in near infrared lines and can also be used for observing astrophysical objects in the nighttime.

Keywords:
Sun, corona, telescope, spatial resolution, magnetic fields, polarization, spectrograph, spectral lines
Text
Publication text (PDF): Read Download
References

1. Grigoryev V.M., Papushev P.G., Skomorovsky V.I., Chuprakov S.A. Three-meter solar telescope-coronagraph required for Russian solar physicists. Russian National Astronomical Conference: Abstracts. Saint-Petersburg, August 6-12, 2001. 2001, p. 53. (In Russian).

2. Grigor’ev V., Pimenov Y., Papushev P., Skomorovsky V., Kamus S. Proposal Large Solar Telescope in Russia. 26th Meeting of the IAU. Special Session “Astronomical Facilities of the Next Decade”. Czech Republic, Prague, 16-17 August, 2006. 2006, SPS1, id 19.

3. Liu Z., Deng Y., Ji H. The Chinese Giant Solar Telescope. Proc. the International Astronomical Union. 2013, vol. 8 (S300), pp. 349-354. DOI:https://doi.org/10.1017/S1743921313011186.

4. McMullina J.P., Rimmelea T.R., Keila S.L., Warnera M., Bardena S., Bulaua S., et al. The Advanced Technology Solar Telescope: Design and Early Construction. Proc. SPIE. 2013, vol. 8444, no. 7, pp. 1-12.

5. Rimmele T.R., Wagner J., Keil S., Elmore D., Hubbard R., Hansen E., Warner M., et al. The Advanced Technology Solar Telescope: beginning construction of the world’s largest solar telescope. Proc. SPIE. 2010, vol. 7733, pp. 1-12.

6. Sánchez-Capuchino J., Collados M., Soltau D., López R., Rasilla J.L., Gelly B. Current concept for the 4m European Solar Telescope (EST) optical design. Proc. SPIE. 2010, vol. 7733, no. 36, pp. 1-8.

Login or Create
* Forgot password?