ShaFES: Shamakhy fibre echelle spectrograph

Heading: 
Instruments and Devices
1Mikailov, KM, 2Musaev, FA, 1Alekberov, IA, 1Rustamov, BN, 1Khalilov, OV
1Nasir al-Din al-Tusi Shamakhi Astrophysical Observatory, Pirqulu, Azerbaijan
2Special Astrophysical Observatory of the Russian Academy of Science, Nizhny Arkhyz, Russia
Kinemat. fiz. nebesnyh tel (Online) 2020, 36(1):44-67
https://doi.org/10.15407/kfnt2020.01.044
Start Page: Instruments and Devices
Language: Russian
Abstract: 

The paper describes the high-resolution fiber-optic echelle spectrograph for the Cassegrain focus of the 2-m telescope at the Shamakhy Astrophysical Observatory. The schematic optical circuit and circuit of a suspended part of the spectrograph are presented. Spectrograph operates in two modes with spectral resolutions: 27500 and 55000, in λ= 370...850 nm region of wavelengths. Results of testing of spectrograph property are analyzed. Results and methods of performed test observations are presented, comparative analysis of both the instrument itself and ShaFES observation data with similar tools is carried out. It is possible to obtain spectra of stars of 8 and 10 star magnitude, with signal-to-noise ratio S/N = 150...200, λ = 580 nm, at hourly exposure in case of resolution R = 55000 and R = 27500, respectively.
Keywords: echelle spectrograph, high resolution spectroscopy, instruments and devices

Full text (PDF)

References: 

1. G. G. Valyavin, V. D. Bychkov, M. V. Yushkin, G. A. Galazutdinov, S. V. Drabek, V. S. Shergin, A. N. Sarkisyan, E. A. Semenko, T. E. Burlakova, V. M. Kravchenko, D. O. Kudryavtsev, A. M. Pritychenko, P. G. Kryukov, S. L. Semenov, F. A. Musaev, and S. N. Fabrika. High-resolution fiber-fed Echelle spectrograph for the 6-m telescope. I. Optical scheme, arrangement, and control system, Astrofiz. Byull. 69, 239–255 (2014).
https://doi.org/10.1134/S1990341314020102

2. Kh. M. Mikailov, V. M. Khalilov, and I. A. Alekberov. Echelle spectrometer of the Cassegrain focus of the 2-m ShAO telescope, Tsirk. ShAO 109, 21–28 (2005).

3. F. A. Musaev. Coude echelle spectrometer, Pis’ma Astron. Zh. 19, 776–783 (1993).

4. V. E. Panchuk, M. V. Yushkin, V. G. Klochkova, G. V. Yakopov, and Yu. B. Verich. Design of a high resolution spectrograph for the SAO 1-m telescope, Astrofiz. Byull. 70, 237–243 (2015).
https://doi.org/10.1134/S1990341315020091

5. I. V. Peysakhson, Optics of Spectral Instruments, 2nd ed. (Mashinostroenie, Leningrad, 1975) [in Russian].

6. A. Kh. Rzayev, Kh. M. Mikailov, and I. A. Alekberov. Echelle coude focus spectrometer of the 2-m telescope of the ShAO Academy of Sciences of Azerbaijan, Tsirk. ShAO 95, 3–7 (1999).

7. P. C. Allende, M. Asplund, L. R. J. Garcia, and D. L. Lambert. Signatures of convection in the spectrum of Procyon: Fundamental parameters and Iron abundance, Astrophys. J. 567, 544–565 (2002).
https://doi.org/10.1086/338248

8. T. Bonev, H. Markov, T. Tomov, R. Bogdanovski, P. Markishki, M. Belcheva, W. Dimitrov, K. Kamiriski, I. Milushev, F. Musaev, M. Napetova, G. Nikolov, P. Nikolov, and T. Tenev. ESpeRo: Echelle Spectrograph Rozhen, Bulg. Astron. J. 26, 67–90 (2017).

9. F. N. Edmonds. A spectrophometric analysis of Procyon. I. Equivalent widths and line profiles, Astrophys. J. 142, 278–298 (1965).
https://doi.org/10.1086/148283

10. I. Furenlid and O. Cardona. A CCD spectrograph with optical fiber feed, Publ. Astron. Soc. Pac. 100, 1001–1007 (1988).
https://doi.org/10.1086/132263

11. A. W. Irwin, J. M. Fletcher, S. L. S. Yang, G. A. H. Walker, and C. Goodenough. The orbit and mass of Procyon, Publ. Astron. Soc. Pac. 104, 489–499 (1992).
https://doi.org/10.1086/133022

12. R. Mackle, R. Griffin, R. Griffin, and H. Holweger. A model-atmosphere analysis of the spectrum of Arcturus, Astron. Astrophys. Suppl. Ser. 19, 303–319 (1975).
https://doi.org/10.1007/978-94-010-1476-2_3

13. V. E. Panchuk, M. V. Yushkin, and M. V. Yakopov. High-resolution fiber-fed spectrographs, Astrophys. Bull. 66, 355–370 (2011).
https://doi.org/10.1134/S1990341311030084

14. M. J. Pfeier, C. Frank, D. Baumuller, K. Fuhrmann, and T. Gehren. FOCES-a fibre optics Cassegrain echelle-spectrograph, Astron. Astrophys. Suppl. Ser. 130, 381–393 (1998).
https://doi.org/10.1051/aas:1998231

15. H. M. Qiu, G. Zhao, Y. Q. Chen, and Z. W. Li. The abundance patterns of Sirius and Vega, Astrophys. J. 548, 953–965 (2001).
https://doi.org/10.1086/319000

16. I. Ramírez and C. Allende Prieto. Fundamental parameters and chemical composition of Arcturus, Astrophys. J. 743, 135 (2011).
https://doi.org/10.1088/0004-637X/743/2/135

17. G. Smith. Non-resonance lines of neutral calcium in the spectra of the Sun and Procyon, Astron. Astrophys. 103, 351–357 (1981).