• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>PASJ: Publications of the Astronomical Society of Japan >Optical observation of the 2003 outburst of a black hole X-ray binary, V4641 Sagittarii
【24h】

Optical observation of the 2003 outburst of a black hole X-ray binary, V4641 Sagittarii

机译：对2003年黑洞X射线射手座V4641射手座爆发的光学观察

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We report on the results of our optical photometric observations of a black hole X-ray binary, V4641 Sgr during an outburst in 2003 August. During the outburst, we detected several properties having noteworthy similarities to those observed during an outburst in 2002 May; the outburst lasted about 6 days, during which it exhibited flares and rapid fluctuations, having timescales of 10(2-4) s. In complicated profiles of light curves, we identified several recurring patterns, which were also observed during the 2002 outburst. First, the object frequently experienced sudden temporary fadings, which we call "dips", appearing just after the states characterized by strong short-term fluctuations. Second, we detected optical flashes, which are characterized by a brightening by similar to 0.5 mag within similar to 50s. Based on the similarity of the outbursts in 2002 and 2003, we conclude that they have the same nature. This is the first time that repetitive outburst phenomena have been confirmed in V4641 Sgr. The object probably has an outburst interval that can be as small as 1-2 years.
机译：我们报告了在2003年8月爆发期间对黑洞X射线双星V4641 Sgr进行光学测光观测的结果。在爆发期间，我们发现了几处与2002年5月爆发期间观察到的特征明显相似的属性;爆发持续了约6天，在此期间爆发并迅速起伏，时标为10（2-4）s。在复杂的光曲线图中，我们确定了几种重复出现的模式，这些模式也在2002年爆发期间被观察到。首先，物体经常经历突然的暂时性衰落，我们称之为“倾角”，出现在以短期强烈波动为特征的状态之后。其次，我们检测到了闪光现象，其特征是在类似于50s的时间内变亮了类似0.5 mag的亮度。根据2002年和2003年爆发的相似性，我们得出结论，它们具有相同的性质。这是第一次在V4641 Sgr中确认重复爆发现象。该对象的爆发间隔可能小到1-2年。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号