A Systematic Search of Zwicky Transient Facility Data for Ultracompact Binary LISA-detectable Gravitational-wave Sources
A Systematic Search of Zwicky Transient Facility Data for Ultracompact Binary LISA-detectable Gravitational-wave Sources
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DOI：
10.3847/1538-4357/abc261
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发表时间：
2020-09
期刊：
影响因子：
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通讯作者：
K. Burdge;T. Prince;J. Fuller;D. Kaplan;T. Marsh;P. Tremblay;Z. Zhuang;E. Bellm;I. Caiazzo
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文献类型：
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作者：
K. Burdge;T. Prince;J. Fuller;D. Kaplan;T. Marsh;P. Tremblay;Z. Zhuang;E. Bellm;I. Caiazzo
利用兹威基瞬态设施收集的光度测量，我们正在对具有短轨道周期的双星系统进行持续的调查（目标是识别即将到来的激光干涉仪空间天线（LISA）可探测到的新引力波源）。我们展示了迄今为止发现的15个双星系统的样本，它们的轨道周期从6.91到56.35分钟不等。在这15个系统中，有7个是日食系统，没有显示出明显的质量传递迹象。此外，我们还发现了两个AM Canum Venaticorum系统和六个系统，它们的光曲线主要呈现椭球形变化。我们提出了后续的光谱和高速光度法来确认这些系统的性质，估计它们的LISA信噪比，并讨论了它们的物理特性。
Using photometry collected with the Zwicky Transient Facility, we are conducting an ongoing survey for binary systems with short orbital periods ( with the goal of identifying new gravitational-wave sources detectable by the upcoming Laser Interferometer Space Antenna (LISA). We present a sample of 15 binary systems discovered thus far, with orbital periods ranging from 6.91 to 56.35 minutes. Of the 15 systems, seven are eclipsing systems that do not show signs of significant mass transfer. Additionally, we have discovered two AM Canum Venaticorum systems and six systems exhibiting primarily ellipsoidal variations in their lightcurves. We present follow-up spectroscopy and high-speed photometry confirming the nature of these systems, estimates of their LISA signal-to-noise ratios, and a discussion of their physical characteristics.