SPECTRAL INVESTIGATIONS OF CM DRA

We present an analysis of a high resolution (R=47000) echelle spectra of the low-mass eclipsing binary CM Draconis, which were obtained on the 4.2-m William Herschel Telescope. Spectra were obtained for various phases of the orbit. There are some difficulties in echelle spectra processing of cool st...

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Main Authors: M. K. Kuznetsov, Y. V. Pavlenko, D. Pinfield, H. Jones
Format: Article
Language:English
Published: Odessa I. I. Mechnykov National University 2010-11-01
Series:Odessa Astronomical Publications
Online Access:http://oap.onu.edu.ua/article/view/84899
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author M. K. Kuznetsov
Y. V. Pavlenko
D. Pinfield
H. Jones
author_facet M. K. Kuznetsov
Y. V. Pavlenko
D. Pinfield
H. Jones
author_sort M. K. Kuznetsov
collection DOAJ
description We present an analysis of a high resolution (R=47000) echelle spectra of the low-mass eclipsing binary CM Draconis, which were obtained on the 4.2-m William Herschel Telescope. Spectra were obtained for various phases of the orbit. There are some difficulties in echelle spectra processing of cool stars, since it is hard to get energy distribution in a large scale in such spectra. We proposed an efficient method for making the continuum of spectrum of cool stars. We refined the parameters (effective temperature, rotational velocity and metallicity) of the components of the system CM Dra using the method of stellar atmospheres. The data that we obtained are in good agreement with the results obtained by other authors. It is indicate on efficiency of our technique. The errors of temperature and metallicity determinations is about 100 K and 0.3 dex respectively.
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spelling doaj.art-a18b6a70bdfb4b2a8cfd6e27ff19c3842022-12-21T19:21:25ZengOdessa I. I. Mechnykov National UniversityOdessa Astronomical Publications1810-42152010-11-01230747510.18524/1810-4215.2010.23.8489984899SPECTRAL INVESTIGATIONS OF CM DRAM. K. Kuznetsov0Y. V. PavlenkoD. PinfieldH. JonesMain Astronomical Observatory of National Academy of SciencesWe present an analysis of a high resolution (R=47000) echelle spectra of the low-mass eclipsing binary CM Draconis, which were obtained on the 4.2-m William Herschel Telescope. Spectra were obtained for various phases of the orbit. There are some difficulties in echelle spectra processing of cool stars, since it is hard to get energy distribution in a large scale in such spectra. We proposed an efficient method for making the continuum of spectrum of cool stars. We refined the parameters (effective temperature, rotational velocity and metallicity) of the components of the system CM Dra using the method of stellar atmospheres. The data that we obtained are in good agreement with the results obtained by other authors. It is indicate on efficiency of our technique. The errors of temperature and metallicity determinations is about 100 K and 0.3 dex respectively.http://oap.onu.edu.ua/article/view/84899
spellingShingle M. K. Kuznetsov
Y. V. Pavlenko
D. Pinfield
H. Jones
SPECTRAL INVESTIGATIONS OF CM DRA
Odessa Astronomical Publications
title SPECTRAL INVESTIGATIONS OF CM DRA
title_full SPECTRAL INVESTIGATIONS OF CM DRA
title_fullStr SPECTRAL INVESTIGATIONS OF CM DRA
title_full_unstemmed SPECTRAL INVESTIGATIONS OF CM DRA
title_short SPECTRAL INVESTIGATIONS OF CM DRA
title_sort spectral investigations of cm dra
url http://oap.onu.edu.ua/article/view/84899
work_keys_str_mv AT mkkuznetsov spectralinvestigationsofcmdra
AT yvpavlenko spectralinvestigationsofcmdra
AT dpinfield spectralinvestigationsofcmdra
AT hjones spectralinvestigationsofcmdra