Optimizing LIGO with LISA forewarnings to improve black-hole spectroscopy
Optimizing LIGO with LISA forewarnings to improve black-hole spectroscopy
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DOI：
10.1103/physrevd.99.124043
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发表时间：
2018-06
影响因子：
5
通讯作者：
Rhondale Tso;D. Gerosa;Yanbei Chen
中科院分区：
文献类型：
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作者：
Rhondale Tso;D. Gerosa;Yanbei Chen
在LIGO的灵敏度波段，大质量恒星质量黑洞双星合并的早期螺旋将被即将到来的空间使命LISA在低频下探测到。LISA将通过多年的预警来预测LIGO观测到双星的时间和频率。因此，我们将发现自己处于这样一个位置：知道一个双星即将合并，这是一个前所未有的机会，可以优化地面操作，以增加他们的科学回报。我们将这一想法应用于多振铃模式或黑洞光谱学的检测。窄带调谐可以提高探测器在对应于第一次主导衰荡模式的频率下的灵敏度，并在很大程度上改善我们在实验上测试天体物理黑洞克尔性质的前景。我们定义了一个新的一致性参数之间的不同模式，称为δ GR，并表明，在这种措施，优化配置有可能增加一倍的黑洞光谱学的有效性相比，标准的宽带设置。
The early inspiral of massive stellar-mass black-hole binaries merging in LIGO’s sensitivity band will be detectable at low frequencies by the upcoming space mission LISA. LISA will predict, with years of forewarning, the time and frequency with which binaries will be observed by LIGO. We will, therefore, find ourselves in the position of knowing that a binary is about to merge, with the unprecedented opportunity to optimize ground-based operations to increase their scientific payoff. We apply this idea to detections of multiple ringdown modes, or black-hole spectroscopy. Narrow-band tunings can boost the detectors’ sensitivity at frequencies corresponding to the first subdominant ringdown mode and largely improve our prospects to experimentally test the Kerr nature of astrophysical black holes. We define a new consistency parameter between the different modes, called δGR, and show that, in terms of this measure, optimized configurations have the potential to double the effectiveness of black-hole spectroscopy when compared to standard broadband setups.