Photometric analysis of TT Arietis in the high and low states during 2004-2013

被引：0
|
作者：
Zemko, P. [1 ,2 ]
Kato, T. [3 ]
机构：
[1] Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Moscow 119992, Russia
[2] Slovak Acad Sci, Astron Inst, Tatranska Lomnica 05960, Slovakia
[3] Kyoto Univ, Dept Astron, Kyoto 6068502, Japan
来源：
CONTRIBUTIONS OF THE ASTRONOMICAL OBSERVATORY SKALNATE PLESO | 2014年 / 43卷 / 03期
关键词：
BEHAVIOR;
D O I：
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中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We announce a study of photometric behaviour of TT An in the time interval between 2004 and 2013, including its last low state that occurred in 2009 - 2010. We used data of the VSNET Collaboration, AAVSO and ASAS databases. We found that negative superhumps in TT An take place only if the brightness of the object is larger than 11.5 mag. Here we also claim the first detection of co-existense of negative and positive superhumps in TT An and present a refined orbital ephemeris.
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页码：487 / 489
页数：3
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