Dwarf nova oscillations and quasi-periodic oscillations in cataclysmic variables - VII. OY Carinae and oscillations in dwarf novae in quiescence

被引：1

作者：

Woudt, Patrick A. ^{[1
]}

Warner, Brian ^{[1
,2
]}

机构：

[1] Univ Cape Town, Dept Astron, ZA-7701 Rondebosch, South Africa

[2] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2009年 / 400卷 / 02期

基金：

新加坡国家研究基金会;

关键词：

accretion; accretion discs; binaries: close; stars: dwarf novae; stars: individual: OY Car; novae; cataclysmic variables; stars: oscillations; X-RAY-EMISSION; WHITE-DWARF; RAPID OSCILLATIONS; XMM-NEWTON; RU-PEGASI; U-GEM; ECLIPSE; LAYER; QPOS;

D O I：

10.1111/j.1365-2966.2009.15488.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have observed dwarf nova oscillations (DNOs) in OY Car during outburst, down through decline and beyond; its behaviour is similar to what we have previously seen in VW Hyi, making it only the second dwarf nova to have DNOs late in outburst that continue well into quiescence. There are also occasional examples of DNOs in deep quiescence, well away from outburst - they have properties similar to those during outburst, indicating similar physical causes and structures. We discuss the occurrence of DNOs in other dwarf novae and conclude that DNOs during quiescence are more common than often supposed and exhibit properties similar to those seen in outburst.

引用

页码：835 / 842

页数：8

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