YNAO OpenIR  > 双星与变星研究组
MAGNETIC CVs AS A BRIGHT REPRESENTATIVE OF CLOSE BINARIES
Qian SB(钱声帮)1,2,3; Han ZT(韩忠涛)1,2,3; Zhu LY(朱俐颖)1,2,3; Liao WP(廖文萍)1,2; E. Fernández-Lajús4,5; M. Zejda6; Liu L(刘亮)1,2,3; B. Soonthornthum7; Zhou X(周肖)1,2,3
Source PublicationPublications of the Korean Astronomical Society
2015-09
Volume30
Issue2
Pages175-178
DOI10.5303/PKAS.2015.30.2.175
Contribution Rank第1完成单位
Indexed By其他
Conference Name12th Asia-Pacific Regional IAU Meeting
Conference Date2014-08-18
Conference PlaceDOC, Daejeon, Korea
KeywordBinaries: Stars Binaries: Close-stars Binaries: Eclipsing-stars Evolution
Abstract

Due to the lack of an accretion disk in a polar (magnetic cataclysmic variable, MCV), the material transferred from the secondary is directly accreted onto the white dwarf, forming an accretion stream and a hot spot on the white-dwarf component. During the eclipses, different light components can be isolated. Therefore, the monitoring of eclipsing polars could provide valuable information on several modern astrophysical problems, e.g., CVs as planetary hosting stars, mass transfer and mass accretion in CVs, and the magnetic activity of the most rapidly rotating cool dwarfs. In the past five years, we have monitored about 10 eclipsing polars (e.g., DP Leo and HU Aqr) using several 2-m class telescopes and about 100 eclipse profiles were obtained. In this paper, we will introduce the progress of our research group at YNOs. The first direct evidence of variable mass transfer in a CV is obtained and we show that it is the dark-spot activity that causes the mass transfer in CVs. Magnetic activity cycles of the cool secondary were detected and we show that the variable mass transfer is not caused by magnetic activity cycles. These results will shed light on the structure and evolution of close binary stars (e.g., CVs and Algols).

Funding ProjectChinese Natural Science Foundation[11133007] ; Chinese Natural Science Foundation[11325315]
Funding OrganizationChinese Natural Science Foundation
Language英语
Subject Area天文学 ; 天体物理学 ; 恒星与银河系
MOST Discipline Catalogue理学 ; 理学::天文学
PublisherThe Korean Astronomical Society
Publication PlaceKorea
ISSN1225-1534
URL查看原文
Archive Date2016-04-12
Citation statistics
Document Type会议论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/9775
Collection双星与变星研究组
中国科学院天体结构与演化重点实验室
Corresponding AuthorQian SB(钱声帮)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences (CAS), P.O. Box 110, 650011 Kunming, P.R. China
2.Key laboratory of the structure and evolution celestial bodies, Chinese Academy of Sciences, P. O. Box 110, 650011, Kunming, P. R. China
3.University of the Chinese Academy of Sciences, Yuquan Road 19#, Sijingshang Block, 100049 Beijing, P. R. China
4.Facultad de Ciencias Astronómicasy Geofísicas, Universidad Nacional de La Plata, 1900 La Plata, Buenos Aires, Argentina
5.Instituto de Astrofisica de La Plata (CCT La plata - CONICET/UNLP), Argentina
6.Department of Theoretical Physics and Astrophysics, Masaryk University, Kotl´aˇrsk´a 2, CZ-611 37 Brno, Czech Republic
7.National Astronomical Research Insititude of Thailand, 191 Siriphanich Bldg., Huay Kaew Rd., Chiang Mai 50200, Thailand
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Qian SB,Han ZT,Zhu LY,et al. MAGNETIC CVs AS A BRIGHT REPRESENTATIVE OF CLOSE BINARIES[C]. Korea:The Korean Astronomical Society,2015:175-178.
Files in This Item:
File Name/Size DocType Version Access License
MAGNETIC CVs AS A BR(498KB)会议论文 开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Qian SB(钱声帮)]'s Articles
[Han ZT(韩忠涛)]'s Articles
[Zhu LY(朱俐颖)]'s Articles
Baidu academic
Similar articles in Baidu academic
[Qian SB(钱声帮)]'s Articles
[Han ZT(韩忠涛)]'s Articles
[Zhu LY(朱俐颖)]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Qian SB(钱声帮)]'s Articles
[Han ZT(韩忠涛)]'s Articles
[Zhu LY(朱俐颖)]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: MAGNETIC CVs AS A BRIGHT REPRESENTATIVE OF CLOSE BINARIES.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.