ADAPTIVE MODE OF THE MSS BTA
The study of instability of the Main stellar spectrograph of the 6-m Telescope together with system of registration of a spectrum by means of the CCD shows that there is a drift of a spectrum along a dispersion, corresponding to the tenth of a pixel (the hundredth part of Α) in an hour. To eliminate...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Odessa I. I. Mechnykov National University
2008-12-01
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| Series: | Odessa Astronomical Publications |
| Online Access: | http://oap.onu.edu.ua/article/view/86841 |
| _version_ | 1819049904150937600 |
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| author | G. A. Chountonov I. D. Najdenov |
| author_facet | G. A. Chountonov I. D. Najdenov |
| author_sort | G. A. Chountonov |
| collection | DOAJ |
| description | The study of instability of the Main stellar spectrograph of the 6-m Telescope together with system of registration of a spectrum by means of the CCD shows that there is a drift of a spectrum along a dispersion, corresponding to the tenth of a pixel (the hundredth part of Α) in an hour. To eliminate this drift, i.e. to keep a spectrum from displacement, the plane-parallel glass plate was installed behind a slit of the spectrograph. The angle of inclination of this plate changes depending on a mismatch of positions of the current and comparison basic spectra. A lamp of hollow cathode is used. The scheme of this device is described. The results of tests are presented. The time of correction takes about one minute that allows to keep the position of the ThAr spectrum within +-0.0006 Α. |
| first_indexed | 2024-12-21T11:39:33Z |
| format | Article |
| id | doaj.art-c502eecd753d4e59822794b9636d900a |
| institution | Directory Open Access Journal |
| issn | 1810-4215 |
| language | English |
| last_indexed | 2024-12-21T11:39:33Z |
| publishDate | 2008-12-01 |
| publisher | Odessa I. I. Mechnykov National University |
| record_format | Article |
| series | Odessa Astronomical Publications |
| spelling | doaj.art-c502eecd753d4e59822794b9636d900a2022-12-21T19:05:20ZengOdessa I. I. Mechnykov National UniversityOdessa Astronomical Publications1810-42152008-12-01210262810.18524/1810-4215.2008.21.8684186841ADAPTIVE MODE OF THE MSS BTAG. A. Chountonov0I. D. Najdenov1Special Astrophysical Observatory RAS Nizhnij ArkhyzSpecial Astrophysical Observatory RAS Nizhnij ArkhyzThe study of instability of the Main stellar spectrograph of the 6-m Telescope together with system of registration of a spectrum by means of the CCD shows that there is a drift of a spectrum along a dispersion, corresponding to the tenth of a pixel (the hundredth part of Α) in an hour. To eliminate this drift, i.e. to keep a spectrum from displacement, the plane-parallel glass plate was installed behind a slit of the spectrograph. The angle of inclination of this plate changes depending on a mismatch of positions of the current and comparison basic spectra. A lamp of hollow cathode is used. The scheme of this device is described. The results of tests are presented. The time of correction takes about one minute that allows to keep the position of the ThAr spectrum within +-0.0006 Α.http://oap.onu.edu.ua/article/view/86841 |
| spellingShingle | G. A. Chountonov I. D. Najdenov ADAPTIVE MODE OF THE MSS BTA Odessa Astronomical Publications |
| title | ADAPTIVE MODE OF THE MSS BTA |
| title_full | ADAPTIVE MODE OF THE MSS BTA |
| title_fullStr | ADAPTIVE MODE OF THE MSS BTA |
| title_full_unstemmed | ADAPTIVE MODE OF THE MSS BTA |
| title_short | ADAPTIVE MODE OF THE MSS BTA |
| title_sort | adaptive mode of the mss bta |
| url | http://oap.onu.edu.ua/article/view/86841 |
| work_keys_str_mv | AT gachountonov adaptivemodeofthemssbta AT idnajdenov adaptivemodeofthemssbta |