Sergei Ermakovhome page

Home address:

Nizhnij Arkhyz, 3, Apt.102, Zelenchukskij Region, Karachai-Cherkessian Republic, 369167, RUSSIA

E-mail: ermak@sao.ru

Experience:

• 1995-... Junior Researcher, Laboratory of Stellar Spectroscopy, Special Astrophysical Observatory, Nizhnij Arkhyz RUSSIA.
• 1996-1999 post-graduate of Laboratory of Stellar Spectroscopy, Special Astrophysical Observatory. Investigation of chemical composition of metall deficient stars (Subdwarfs, Giants and related objects) using model atmosphere method. Developed some software for determination of magnetic fields, radial velocities of stars, analysing line profiles and some other.
• 1999 Supporting astronomer of the Prime Focus Echelle Spectrometer (PFES) of the 6-m telescope.[Up]

Applied Field:

Chemical composition of stars, model atmosphere method, software for spectra processing, spectroscopical instrumentation.[Up]

List of Publications:

1. Panchuk V.E., Yermakov S.V. On the problem of measurement of radial velocity. Bull. SAO, 1996, v.39, p.161-163.
2. Klochkova V.G., Ermakov S.V., Panchuk V.E. Express method of search for strong magnetic fields. Bull. SAO, 1996 v.41,

p.58-63.
3. Panchuk V. E., Najdenov I. D., Klochkova V. G., Ivanchik A. B., Yermakov S. V., Murzin V. A. On the problem of high spectral resolution observations of faint objects. Bull. SAO. 1998, v.44, p.127-131.
4. Panchuk V.E., Yermakov S.V., Bondarenko Yu. Bull. SAO. 1998, v.44, p.132.
5. Ermakov S. V., Klochkova V. G. Spectroscopy of halo stars. Bull. SAO. 1998, v.46, 110-117.
6. Klochkova V.G., Ermakov S.V., Panchuk V.E., Tavolganskaya N.S., Yushkin M.V. 1999. Spectral complex at the Nasmyth focus

of the 6m telescope BTA. II. Positional and photometric parameters of the echelle spectrometer with a large collimated beam.
Preprint SAO, N137.
7. Klochkova V.G., Ermakov S.V., Panchuk V.E. High resolution spectroscopy of selected faint stars. Astrophys. & Space Sci., 1999, v.265, p.185.
8. T.V.Mishenina, V.G.Klochkova,V.E.Panchuk, S.V.Ermakov Spectroscopic investigation of the metal-poor binary star G176-27.

Proceeding of the 35th Liege Int.Astroph. Coll. July 5-8,1999. "The galactic halo: from globular clusters to field stars", eds. A. Noels, P.Magaine, D.Caro, E.Jehin, G Parmentier, A.Thoul. p.261-264.
9. Klochkova V.G., Ermakov S.V., Panchuk V.E., Tavolganskaya N.S., Yushkin M.V. 2000. Spectral complex at the Nasmyth focus of the 6m telescope BTA. VI. Positional and photometric parameters of the echelle spectrometer Lynx. Preprint SAO, N152.
10. Usenko I.A., Kovtyukh V.V., Klochkova V.G., Panchuk V.E., Yermakov S.V. Spectroscopic investigations of classical Cepheids

and main-sequence stars in galactic open clusters and associations. I. Association Cas OB2 and the small-amplitude Cepheid SU
Cassiopeae. Astron. Astrophys. 2001. v.367, p.831.
11. Klochkova V.G., Ermakov S.V., Panchuk V.E. Atlas spectra of F-, G-stars. Preprint of Spec. Astrophys. Observ. 2001, N157.
12. Panchuk V.E., Klochkova V.G., Yushkin M.V., Romanenko V.P., Najdenov I.D., Ermakov S.V. Prime focus echelle spectropolarimeter. Preprint SAO, No. 159, 2001.
13. Panchuk V.E., Klochkova V.G., Najdenov I.D., Romanenko V.P., Ermakov S.V., Yushkin M.V. Spectral complex at the Nasmyth focus of the 6m telescope BTA. IX. Fast echelle spectropolarimeter. Preprint SAO, No. 160, 2001.
14. Chentsov E.L., Ermakov S.V., Klochkova V.G., Panchuk V.E., Bjorkman K.S., Miroshnichenko A.S. An atlas pf spectra of B6-A2 hypergiants and supergiants from 4800 to 6700 AA. Preprint Spec. Astrophys. Observ. N.161. 2001.
15. Ermakov S.V., Klochkova V.G., Panchuk V.E., Zhao G. The chemical composition of halo stars, Astron. Zh., v.79, N 9, 2002.
16. В.Е.Панчук, Н.Е.Пискунов, В.Г.Клочкова, М.В.Юшкин, С.В.Ермаков Спектральный  комплекс  фокуса  Нэсмита  6-м  телескопа  БТА.  X. Позиционные и  фотометрические  характеристики кварцевого эшелле спектрографа НЭС с крупноформатной матрицей ПЗС. Препринт САО, N169, 2002.
17. Панчук В.Е., Клочкова В.Г., Пискунов Н.Е., Монин Д.Н., Юшкин М.В., Ермаков С.В., Найденов И.Д. Комплекс аппаратуры для спектроскопических исследований звезд на 6-метровом телескопе БТА. Препринт САО, N170, 2002.
18. V.E. Panchuk, S.V. Ermakov, V.G. Klochkova. Investigatoion of halo stars. I. The spectral atlas in the range 3500-5000 AA. Preprint Spec. Astrophys. Observ. N.172. 2002.
19. E. L. Chentsov, S. V. Ermakov, V. G. Klochkova, V. E. Panchuk, K. S. Bjorkman, A. S. Miroshnichenko. An atlas of spectra of B6-A2 hypergiants and supergiants from 4800 to 6700 AA. Astron. Astrophys., 2002  (accepted).[Up]