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Complex study of the open cluster NGC 2281

Published online by Cambridge University Press:  07 March 2018

Jaroslav Velčovský  and
Jan Janík
Jaroslav Velčovský
Affiliation:
Department of Theoretical Physics and Astrophysics, Faculty of Science, Masaryk University, Kotlářská 2, CZ-611 37, Brno, Czech Republic email: 375641@mail.muni.cz, honza@physics.muni.cz
Jan Janík
Affiliation:
Department of Theoretical Physics and Astrophysics, Faculty of Science, Masaryk University, Kotlářská 2, CZ-611 37, Brno, Czech Republic email: 375641@mail.muni.cz, honza@physics.muni.cz
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Abstract

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We present the complex study of the open cluster NGC 2281 where both traditional and newly developed methods for study of open clusters have been used. Morphological and dynamical parameters of the cluster were obtained from the accepted astrometric data. The new method “Superposition of Gaussian surfaces” along with proper motion of stars was used to determine membership probabilities which were helpful in selection of stars for further analysis. Metallicity and radial velocity of the cluster were obtained from spectroscopic measurements. Age, colour excess, and distance of the cluster were determined using absolute CCD photometry combined with previous results. The results were compared with those of previous studies.

Keywords

complex studyNGC 2281membership probability
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S330: Astrometry and Astrophysics in the Gaia sky , April 2017 , pp. 273 - 274
Copyright
Copyright © International Astronomical Union 2018 

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