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Magnetic Field and Chemical Abundance of AX CVn (HD 110066)

Magnetic Field and Chemical Abundance of AX CVn (HD 110066) —Within the program for studying the variability of slow-rotating magnetic stars, we carried out magnetic monitoring of the Ap star HD 110066 (AX CVn), the expected variability period of which was estimated as 13.4 yrs. Based on our measurements of the magnetic field performed with the 1-m SAO RAS telescope and the literature data, we assumed that the most likely period of this star \documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$P = 6.4769 \pm 0.0011$$\end{document} days; we also estimated the parameters of the oblique rotator model describing the magnetic variability of the star HD 110066. In order to determine its chemical abundance, a high-resolution spectrum with (\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$R \approx 70{\kern 1pt} {\kern 1pt} 000$$\end{document}) was obtained using the fiber-fed spectrometer of the 6-m telescope of SAO RAS. The chemical abundance estimates completely coincided with those from the spectrum obtained with a similar resolution with the ESPaDOnS spectrometer (CFHT, Mauna Kea, Hawaii). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Astrophysical Bulletin Springer Journals

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Publisher
Springer Journals
Copyright
Copyright © Pleiades Publishing, Ltd. 2021. ISSN 1990-3413, Astrophysical Bulletin, 2021, Vol. 76, No. 3, pp. 297–302. © Pleiades Publishing, Ltd., 2021. Russian Text © The Author(s), 2021, published in Astrofizicheskii Byulleten’, 2021, Vol. 76, No. 3, pp. 359–365.
ISSN
1990-3413
eISSN
1990-3421
DOI
10.1134/s1990341321030032
Publisher site
See Article on Publisher Site

Abstract

—Within the program for studying the variability of slow-rotating magnetic stars, we carried out magnetic monitoring of the Ap star HD 110066 (AX CVn), the expected variability period of which was estimated as 13.4 yrs. Based on our measurements of the magnetic field performed with the 1-m SAO RAS telescope and the literature data, we assumed that the most likely period of this star \documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$P = 6.4769 \pm 0.0011$$\end{document} days; we also estimated the parameters of the oblique rotator model describing the magnetic variability of the star HD 110066. In order to determine its chemical abundance, a high-resolution spectrum with (\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$R \approx 70{\kern 1pt} {\kern 1pt} 000$$\end{document}) was obtained using the fiber-fed spectrometer of the 6-m telescope of SAO RAS. The chemical abundance estimates completely coincided with those from the spectrum obtained with a similar resolution with the ESPaDOnS spectrometer (CFHT, Mauna Kea, Hawaii).

Journal

Astrophysical BulletinSpringer Journals

Published: Jul 1, 2021

Keywords: stars: chemically peculiar—stars: individual: HD 110066

References