...
首页> 外文期刊>Physical review letters >Prospects for Multiband Gravitational-Wave Astronomy after GW150914
【24h】

Prospects for Multiband Gravitational-Wave Astronomy after GW150914

机译:GW150914之后的多波段引力波天文学的前景

获取原文
获取原文并翻译 | 示例
           

摘要

The black hole binary (BHB) coalescence rates inferred from the Advanced LIGO detection of GW150914 imply an unexpectedly loud gravitational-wave (GW) sky at millihertz frequencies accessible to the Evolved Laser Interferometer Space Antenna (eLISA), with several outstanding consequences. First, up to thousands of BHBs will be individually resolvable by eLISA; second, millions of nonresolvable BHBs will build a confusion noise detectable with a signal-to-noise ratio of a few to hundreds; third-and perhaps most importantly-up to hundreds of BHBs individually resolvable by eLISA will coalesce in the Advanced LIGO band within 10 y. eLISA observations will tell Advanced LIGO and all electromagnetic probes weeks in advance when and where these BHB coalescences will occur, with uncertainties of <10 s and <1 deg(2). This will allow the prepointing of telescopes to realize coincident GW and multiwavelength electromagnetic observations of BHB mergers. Time coincidence is critical, because a prompt emission associated to a BHB merger will likely have a duration comparable to the dynamical time scale of the systems and is possible only with low-frequency GW alerts.
机译:从GW150914的高级LIGO检测推断出的黑洞二进制(BHB)聚结速率暗示着进化的激光干涉仪空间天线(eLISA)可访问的毫赫兹频率的意外大声引力波(GW)天空,产生了许多突出的后果。首先,eLISA可以单独解决多达数千个BHB。其次,数百万个无法分辨的BHB会产生混乱的噪声,其信噪比为几百到几百。第三,也许是最重要的是,eLISA可以单独解析多达数百个BHB,它们将在10年内合并到Advanced LIGO波段中。 eLISA观测将提前几周告知Advanced LIGO和所有电磁探针何时何地发生这些BHB聚结,不确定性<10 s和<1 deg(2)。这将使望远镜的预定点能够实现BHB合并的重合GW和多波长电磁观测。时间重合是至关重要的,因为与BHB合并相关的及时排放可能会具有与系统动态时间范围可比的持续时间,并且只有低频GW警报才有可能。

著录项

  • 来源
    《Physical review letters》 |2016年第23期|231102.1-231102.6|共6页
  • 作者

    Sesana Alberto;

  • 作者单位

    Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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