论文标题
Jagwar Prowls Ligo/处女座O3纸I:无线电搜索二进制黑洞合并候选人S191216AP可能的多理智对应物
The JAGWAR Prowls LIGO/Virgo O3 Paper I: Radio Search of a Possible Multi-Messenger Counterpart of the Binary Black Hole Merger Candidate S191216ap
论文作者
论文摘要
我们使用Karl G. Jansky非常大的阵列(VLA)提出了敏感的搜索,该阵列(VLA)对引力波候选候选者S191216AP的无线电对应物,分类为二进制黑洞合并,并建议可能是基于高能量中午和TEV光子元素的多通电机事件。我们在0.3度$^2 $ $^2 $的C频段(4--8 GHz)中进行了盲目搜索,该伽马射线的S191216AP报告了高空水Cherenkov天文台(HAWC)。我们的搜索在合并后的130天内跨越了三个时期,并具有75 $ $ $ jy/beam/beam/beam(4 $σ$)的平均源检测阈值,产生了5个与AGN活动相关的可变源,没有S191216AP的确定性对应物。我们发现$ <$ 2 \%($ 3.0 \ pm1.3 $ \%)在6 GHz处的持续无线电来源,在$ <$ 1周(周 - 月份)的时间表上,与以前的无线电可变性研究一致。我们的4 $σ$无线电发光上限$ \ sim $ 1.2 $ \ times {10}^{28} $ erg s $^{ - 1} $ hz $^{ - 1} $在S191216AP的余波上,在HAWC错误区域内,在HAWC错误区域内,是5--10 ix times deeper ti times deeper viste times deeper efter after after after bbbh searse searse searles efter aftg efter aftgh searse searles searse searles。将这个上限与\ citeauthor {perna2019}给出的理论期望进行比较,以bbh合并发起的推定喷气机,用于具有能量$ \ simeq10^{49} $ erg的轴喷射,我们可以排除乘坐Quet okles $ \ sieldsim $ 20 dgrees(假设我们在柜台范围内,我们都会在complete compart useve necim under counter counterpart never counter counter counter counter counter counterpart unect uses counterpart。
We present a sensitive search with the Karl G. Jansky Very Large Array (VLA) for the radio counterpart of the gravitational wave candidate S191216ap, classified as a binary black hole merger, and suggested to be a possible multi-messenger event, based on the detection of a high energy neutrino and a TeV photon. We carried out a blind search at C band (4--8 GHz) over 0.3 deg$^2$ of the gamma-ray counterpart of S191216ap reported by the High-Altitude Water Cherenkov Observatory (HAWC). Our search, spanning three epochs over 130 days post-merger and having mean source-detection threshold of 75$μ$Jy/beam (4$σ$), yielded 5 variable sources associated with AGN activity and no definitive counterpart of S191216ap. We find $<$2\% ($3.0\pm1.3$\%) of the persistent radio sources at 6 GHz to be variable on a timescale of $<$1 week (week--months), consistent with previous radio variability studies. Our 4$σ$ radio luminosity upper limit of $\sim$1.2$\times{10}^{28}$ erg s$^{-1}$ Hz$^{-1}$ on the afterglow of S191216ap, within the HAWC error region, is 5--10 times deeper than previous BBH radio afterglow searches. Comparing this upper limit with theoretical expectations given by \citeauthor{Perna2019} for putative jets launched by BBH mergers, for on-axis jets having energy $\simeq10^{49}$ erg, we can rule out jet opening angles $\lesssim$20 degrees (assuming that the counterpart lies within the 1$σ$ HAWC region that we observed).