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Inferring the core-collapse supernova explosion mechanism with three-dimensional gravitational-wave simulations

机译:推断核心坍缩超新星爆炸机制   三维引力波模拟

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摘要

A detection of a core-collapse supernova signal with an Advanced LIGO andVirgo gravitational-wave detector network will allow us to measureastrophysical parameters of the source. In real advanced gravitational-wavedetector data there are transient noise artifacts that may mimic a truegravitational-wave signal. In this paper, we outline a procedure implemented inthe Supernova Model Evidence Extractor (SMEE) that determines if acore-collapse supernova signal candidate is a noise artefact, arapidly-rotating core-collapse supernova signal, or a neutrino explosionmechanism core-collapse supernova signal. Further to this, we use the latestavailable three-dimensional gravitational-wave core-collapse supernovasimulations, and we outline a new procedure for the rejection of backgroundnoise transients when only one detector is operational. We find the minimum SNRneeded to detect all waveforms is reduced when using three-dimensionalwaveforms as signal models.
机译:利用先进的LIGO和处女座引力波探测器网络对核心坍塌的超新星信号进行检测,将使我们能够测量源的天体物理参数。在实际的先进重力波检测器数据中,存在可能模仿真实重力波信号的瞬态噪声伪像。在本文中,我们概述了在超新星模型证据提取器(SMEE)中实现的过程,该过程确定无核塌陷超新星信号候选是噪声伪像,迅速旋转的核塌陷超新星信号还是中微子爆炸机制核塌陷超新星信号。此外,我们使用了最新的三维重力波核心塌陷超新星模拟,并概述了一种仅在使用一个探测器的情况下抑制背景噪声瞬变的新程序。我们发现,在将三维波形用作信号模型时,检测所有波形所需的最低SNR降低了。

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