TOROS 对 Advanced LIGO-VIRGO O2 第二次观测活动的光学后随观测
高能天体物理现象
2020-03-11 v1 天体物理仪器与方法
摘要
我们展示了 TOROS 合作组在 Advanced LIGO-Virgo 第二次观测运行期间（2016年11月–2017年8月）对引力波事件开展的光学后随观测结果。鉴于我们的观测仪器视场有限（），我们以高定位概率区域内、且可从我们台站观测到的星系为观测目标。我们使用差值成像分析观测数据，随后采用随机森林（Random Forest）算法区分真实与虚假暂现源。在我们响应的全部三个事件中，除 GW170817 外，我们未发现任何与所观测引力波事件 plausibly 相关的真实光学暂现源。我们的观测使用位于 Estación Astrofísica de Bosque Alegre、Cerro Tololo Inter-American Observatory 以及 Dr. Cristina V. Torres Memorial Astronomical Observatory 的望远镜进行。我们的结果与 LIGO-Virgo 探测到的双黑洞并合（GW170104，预期无电磁对应体）以及双中子星并合（GW170817，如预期发现光学暂现源）一致。
引用
@article{arxiv.1901.02960,
title = {TOROS Optical follow-up of the Advanced LIGO-VIRGO O2 second observational campaign},
author = {Rodolfo Artola and Martin Beroiz and Juan Cabral and Richard Camuccio and Moises Castillo and Vahram Chavushyan and Carlos Colazo and Hector Cuevas Larenas and Darren L. DePoy and Mario C. Díaz and Mariano Domínguez and Deborah Dultzin and Daniela Fernández and Antonio C. Ferreyra and Aldo Fonrouge and José Franco and Darío Graña and Carla Girardini and Sebastián Gurovich and Antonio Kanaan and Diego G. Lambas and Marcelo Lares and Alejandro F. Hinojosa and Andrea Hinojosa and Americo F. Hinojosa and Omar López-Cruz and Lucas M. Macri and Jennifer L. Marshall and Raul Melia and Wendy Mendoza and José L. Nilo Castellón and Nelson Padilla and Victor Perez and Tania Peñuela and Wahltyn Rattray and Víctor Renzi and Emmanuel Ríos-López and Amelia Ramírez Rivera and Tiago Ribeiro and Horacio Rodriguez and Bruno Sánchez and Matías Schneiter and William Schoenell and Manuel Starck and Rubén Vrech and Cecilia Quiñones and Luis Tapia and Marina Tornatore and Sergio Torres-Flores and Ervin Vilchis and Adam Zadrożny},
journal= {arXiv preprint arXiv:1901.02960},
year = {2020}
}
备注
9 pages, 4 figures