A search for J-band variability from late-L and T brown dwarfs

被引：48

作者：

Clarke, F. J. ^{[1
]}

Hodgkin, S. T. ^{[2
]}

Oppenheimer, B. R. ^{[3
]}

Robertson, J. ^{[2
]}

Haubois, X. ^{[4
]}

机构：

[1] Oxford Astrophys, Oxford OX1 3RH, England

[2] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England

[3] Amer Museum Nat Hist, New York, NY 10024 USA

[4] Observ Paris, F-92195 Meudon, France

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2008年 / 386卷 / 04期

基金：

英国科学技术设施理事会;

关键词：

techniques : photometric; stars; low-mass; brown dwarfs;

D O I：

10.1111/j.1365-2966.2008.13135.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present J-band photometric observations of eight late-L and T type brown dwarfs designed to search for variability. We detect small amplitude periodic variability from three of the objects on time-scales of several hours, probably indicating the rotation period of the objects. The other targets do not show any variability down to the level of 0.5-5 per cent.

引用

收藏

页码：2009 / 2014

页数：6

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