Gravitational Waves and Electromagnetic Transients
Akshat Singhal, Sourav Palit, Suman Bala, Gaurav Waratkar, Harsh, Kumar, Varun Bhalerao
TL;DR
This paper reviews the significance of joint gravitational wave and electromagnetic observations of neutron star mergers, highlighting current discoveries, ongoing efforts, and the scientific insights gained from multi-messenger astronomy.
Contribution
It emphasizes the importance of multi-messenger observations, discusses recent findings like GW170817, and outlines future prospects for detecting EM counterparts to GW sources.
Findings
Confirmed EM counterpart for GW170817
Rich scientific insights from joint GW-EM observations
Ongoing and future efforts to discover more EM counterparts
Abstract
The advanced gravitational wave (GW) detector network has started {routine detection of } signals from merging compact binaries. Data indicate that in a fair fraction of these sources, at least one component was a neutron star, bringing with it the possibility of electromagnetic (EM) radiation. So far, a confirmed link between EM and GW radiation has been established for only one source, GW170817. Joint analysis of broadband multiwavelength data and the GW signal have yielded rich information spanning fields as varied as jet physics, cosmology, and nucleosynthesis. Here, we discuss the importance of such joint observations, as well as current and near-future efforts to discover and study more EM counterparts to GW sources.
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