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Prototype Implementation of a Web-Based Gravitational Wave Signal Analyzer: SNEGRAF by Eguchi, Satoshi; Shibagaki, Shota; Hayama, Kazuhiro; Kotake, Kei is a scholarly article available to read on EtoBox.

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A direct detection of gravitational waves is one of the most exciting frontiers for modern astronomy and astrophysics. Gravitational wave signals combined with classical electro-magnetic observations, known as multi-messenger astronomy, promise newer and deeper insights about the cosmic evolution of astrophysical objects such as neutron starts and black holes. To this end, we have been developing an original data processing pipeline for KAGRA, a Japanese gravitational wave telescope, for optimal detections of supernova events. As a part of our project, we released a web application named SuperNova Event Gravitational-wave-display in Fukuoka (SNEGRAF) in autumn 2018. SNEGRAF accepts the users' theoretical waveforms as a plain text file consisting of a time series of $h_{+}$ and $h_{\times}$ (the plus and cross mode of gravitational waves, respectively), then displays the input, a corresponding spectrogram, and power spectrum together with KAGRA sensitivity curve and the signal-to-noise ratio; we adopt Google Visualization API for the interactive visualization of the input waveforms. However, it is a time-consuming task to draw more than $\sim 10^{5}$ data points directly with JavaSc

Author

Eguchi, Satoshi; Shibagaki, Shota; Hayama, Kazuhiro; Kotake, Kei

Published

2019

Language

EN