Gravitational wave radiation from a double white dwarf system inside our galaxy: a potential method for seeking strange dwarfs

作     者：Zhan-Kui Lu Shi-Wei Wu Zhi-Cheng Zeng 

作者机构：Department of Astronomy Nanjing University Nanjing 210008 China 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2009年第9卷第7期

页      面：745-750页

核心收录：

学科分类：07[理学] 0704[理学-天文学] 

主　　题：accretion accretion disks - binaries close - dense matter - gravitational waves 

摘      要：Like the investigation of double white dwarf （DWD） systems, strange dwarf （SD） - white dwarf （WD） system evolution in Laser Interferometer Space Antenna （LISA）＇s absolute amplitude-frequency diagram is investigated. Since there is a strange quark core inside an SD, SDs＇ radii are significantly smaller than the value predicted by the standard WD model, which may strongly affect the gravitational wave （GW） signal in the mass-transferring phases of binary systems. We study how an SD-WD binary evolves across LISA＇s absolute amplitude-frequency diagram. In principle, we provide an executable way to detect SDs in the Galaxy＇s DWD systems by radically new windows offered by GW detectors.