YNAO OpenIR  > 双星与变星研究组
A Photometric Monitoring of the M-type Eclipsing Binary CU Cnc
Jiang LQ(江林巧)1; Qian SB(钱声帮)1
Source PublicationAstronomical Society of the Pacific (ASP) Conference Series - NINTH PACIFIC RIM CONFERENCE ON STELLAR ASTROPHYSICS
2012
Volume451
Pages163-166
Author of SourceQian, SB; Leung, KC; Zhu, L; Kwok, S
Contribution Rank第1完成单位
Indexed ByCPCI
Conference Name9th Pacific Rim Conference on Stellar Astrophysics
Conference Date2011-04-14
Conference PlaceLijiang, PEOPLES R CHINA
Abstract

CU Cancri is an eclipsing binary which is composed of two M-type companions. We detected a large red flare of CU Cnc in the R-band with the 60-cm telescope in Yunnan Astronomical Observatory on October 28, 2009. The amplitude of the flare is about of 0.52 mag and the duration time is about 73 minutes. Another three flares in the same band were detected during 90.8-hours monitoring, which reveal a red flare rate of 0.044 flares per hour. CU Cnc also has other strong chromospheric and coronal emissions. These detections together with the emissions indicate that it has the strongest magnetic activity, and compared with other single red dwarfs of the same mass, CU Cnc is fainter (similar to 1.4 magnitude in V-band). This phenomenon may be plausibly explained by the coverage of the dark spots. That means the coverage of dark spots on red-dwarf eclipsing binaries may be seriously underestimated before.

Funding ProjectChinese Natural Science Foundation[11133007] ; Chinese Natural Science Foundation[10903026] ; Chinese Natural Science Foundation[11003040] ; Yunnan Natural Science Foundation[2008CD157]
Funding OrganizationChinese Natural Science Foundation ; Yunnan 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
SubtypeProceedings Paper
PublisherASTRONOMICAL SOC PACIFIC
Publication Place390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
ISBN978-1-58381-785-8
URL查看原文
Archive Date2012-12-18
WOS IDWOS:000304126300029
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordM-dwarfs ; Star
Citation statistics
Document Type会议论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5960
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 AuthorJiang LQ(江林巧)
Affiliation1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, P. R. China
2.Key laboratory of the structure and evolution of celestial objects, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, P. R. China
3.Graduate University of the Chinese Academy of Sciences, 100049 Beijing, P. R. China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Jiang LQ,Qian SB. A Photometric Monitoring of the M-type Eclipsing Binary CU Cnc[C]//Qian, SB; Leung, KC; Zhu, L; Kwok, S. 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA:ASTRONOMICAL SOC PACIFIC,2012:163-166.
Files in This Item:
File Name/Size DocType Version Access License
A Photometric Monito(160KB)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
[Jiang LQ(江林巧)]'s Articles
[Qian SB(钱声帮)]'s Articles
Baidu academic
Similar articles in Baidu academic
[Jiang LQ(江林巧)]'s Articles
[Qian SB(钱声帮)]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Jiang LQ(江林巧)]'s Articles
[Qian SB(钱声帮)]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: A Photometric Monitoring of the M-type Eclipsing Binary CU Cnc.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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