Searching for electromagnetic counterpart of LIGO gravitational waves in the Fermi GBM data with ADWO

被引：26

作者：

Bagoly, Zsolt ^{[1
]}

Szecsi, Dorottya ^{[2
]}

Balazs, Lajos G. ^{[1
,3
]}

Csabai, Istvan ^{[1
]}

Horvath, Istvan ^{[4
]}

Dobos, Laszlo ^{[1
]}

Lichtenberger, Janos ^{[1
,5
]}

Toth, L. Viktor ^{[1
]}

机构：

[1] Eotvos Lorand Univ, Dept Phys Complex Syst, H-1053 Budapest, Hungary

[2] Univ Bonn, Argelander Inst Astron, D-53113 Bonn, Germany

[3] Hungarian Acad Sci, RCAES, Konkoly Observ, H-1051 Budapest, Hungary

[4] Natl Univ Publ Serv, H-1083 Budapest, Hungary

[5] Hungarian Acad Sci, RCAES, Geodet & Geophys Inst, H-1051 Budapest, Hungary

来源：

ASTRONOMY & ASTROPHYSICS | 2016年 / 593卷

关键词：

gamma rays: general; gravitational waves; gamma-ray burst: general; gamma-ray burst: individual: GRB150522; FOLLOW-UP; MERGER;

D O I：

10.1051/0004-6361/201628569

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Aims. The Fermi collaboration identified a possible electromagnetic counterpart of the gravitational wave event of September 14, 2015. Our goal is to provide an unsupervised data analysis algorithm to identify similar events in Fermi's Gamma-ray Burst Monitor CTTE data stream. Methods. We are looking for signals that are typically weak. Therefore, they can only be found by a careful analysis of count rates of all detectors and energy channels simultaneously. Our Automatized Detector Weight Optimization (ADWO) method consists of a search for the signal, and a test of its significance. Results. We developed ADWO, a virtual detector analysis tool for multi-channel multi-detector signals, and performed successful searches for short transients in the data-streams. We have identified GRB150522B, as well as possible electromagnetic candidates of the transients GW150914 and LVT151012. Conclusions. ADWO is an independently developed, unsupervised data analysis tool that only relies on the raw data of the Fermi satellite. It can therefore provide a strong, independent test to any electromagnetic signal accompanying future gravitational wave observations.

引用

页数：4

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