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Gravitational waves and electromagnetic transients

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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 multi-wavelength 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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Notes

  1. GW150914 was detected 4 days before the official start of O1.

  2. https://sites.google.com/view/growthindia/about.

  3. https://gracedb.ligo.org/latest/.

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Acknowledgments

The authors are grateful to observatory staff around the globe whose hard work made these historical observations possible. There are many publications on this subject and the authors sincerely apologize to those colleagues whose work could not be discussed here.

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Correspondence to Akshat Singhal.

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This article is part of the Special Issue on “Astrophysical Jets and Observational Facilities: A National Perspective”.

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Singhal, A., Palit, S., Bala, S. et al. Gravitational waves and electromagnetic transients. J Astrophys Astron 43, 53 (2022). https://doi.org/10.1007/s12036-022-09841-8

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  • DOI: https://doi.org/10.1007/s12036-022-09841-8

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