YNAO OpenIR  > 星系研究组
Historic light curve and long-term optical variation of BL Lacertae 2200+420
Fan, JH1,2; Xie GZ(谢光中)3; Pecontal, E1; Pecontal, A1; Copin, Y1
Source PublicationASTROPHYSICAL JOURNAL
1998-11-01
Volume507Issue:1Pages:173-178
DOI10.1086/306301
Contribution Rank第4完成单位
Indexed BySCI
KeywordBl Lacertae Objects : Individual (2200+420)
AbstractIn this paper, historical optical (UBVRI) data and newly observed data from the Yunnan Observatory of China (over similar to 100 yr) are presented for BL Lacertae. Large variations of Delta U = 5.12 mag, Delta B = 5.31 mag, Delta V = 4.73 mag, Delta R = 2.59 mag, and Delta I = 2.54 mag, and color indices of U-B = -0.11 +/- 0.20, B-V = 1.0 +/- 0.11, V - R = 0.73 +/- 0.19, V - I = 1.42 +/- 0.25, R - I = 0.82 +/- 0.11, and B - I = 2.44 +/- 0.29 have been obtained from the literature. The Jurkevich method is used to investigate the existence of periods in the B-band light curve, and a long-term period of 14 yr is found. The 0.6 and 0.88 yr periods reported by Webb et al. are confirmed. In addition, a close relation between B - I and B is found, suggesting that the spectrum flattens when the source brightens.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-637X
URL查看原文
WOS IDWOS:000077779400016
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS Keyword0.35-3.5 MICRON PHOTOMETRY ; ACTIVE GALACTIC NUCLEI ; MULTIFREQUENCY OBSERVATIONS ; BLAZAR OJ-287 ; 3C 345 ; OBJECTS ; VARIABILITY ; QUASARS ; LAC ; CONFIRMATION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6871
Collection星系研究组
Corresponding AuthorFan, JH
Affiliation1.Centre de Recherche Astronomique de Lyon, Observatoire de Lyon, 9 Avenue Charles André, 69 563 Saint-Genis-Laval Cedex, France
2.Center for Astrophysics, Guangzhou Normal University, Guangzhou 510400, China; and Joint Laboratory for Optical Astronomy, Chinese Academy of Sciences, China
3.Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China
Recommended Citation
GB/T 7714
Fan, JH,Xie GZ,Pecontal, E,et al. Historic light curve and long-term optical variation of BL Lacertae 2200+420[J]. ASTROPHYSICAL JOURNAL,1998,507(1):173-178.
APA Fan, JH,Xie GZ,Pecontal, E,Pecontal, A,&Copin, Y.(1998).Historic light curve and long-term optical variation of BL Lacertae 2200+420.ASTROPHYSICAL JOURNAL,507(1),173-178.
MLA Fan, JH,et al."Historic light curve and long-term optical variation of BL Lacertae 2200+420".ASTROPHYSICAL JOURNAL 507.1(1998):173-178.
Files in This Item:
File Name/Size DocType Version Access License
Historic light curve(340KB)期刊论文作者接受稿开放获取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
[Fan, JH]'s Articles
[Xie GZ(谢光中)]'s Articles
[Pecontal, E]'s Articles
Baidu academic
Similar articles in Baidu academic
[Fan, JH]'s Articles
[Xie GZ(谢光中)]'s Articles
[Pecontal, E]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Fan, JH]'s Articles
[Xie GZ(谢光中)]'s Articles
[Pecontal, E]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Historic light curve and long-term optical variation of BL Lacertae 2200+420.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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