Multi-messenger Observations of a Binary Neutron Star Merger · HackerPapers discussions

Multi-messenger Observations of a Binary Neutron Star Merger — mentioned by wlesieutre

Mon, 25 Oct 2021 16:49:23 GMT

https://arxiv.org/abs/1710.05833 > On 2017 August 17 a binary neutron star coalescence candidate (later designated GW170817) with merger time 12:41:04 UTC was observed through gravitational waves by the Advanced LIGO and Advanced Virgo detectors. The Fermi Gamma-ray Burst Monitor independently detected a gamma-ray burst (GRB 170817A) with a time delay of ∼1.7 s with respect to the merger time. So there is a delay between arrival of gravitational waves and accompanying gamma ray burst, but I couldn't tell you if that's purely because light travels slower than it would in a perfect vacuum…

Paper and discussion history. A mention is not an endorsement.

Multi-messenger Observations of a Binary Neutron Star Merger — mentioned by magicalhippo

Tue, 12 May 2020 11:38:47 GMT

> What's the breakthrough that another telescope at the cost of $Bs would achieve? Multi-messenger astronomy[1] seems to be the next big thing. Will we lose out if we don't have a good optical telescope "up there"? Or is the current crop of gamma/x-ray and IR satellite telescopes coupled with ground-based optical telescopes good enough? I understand adaptive optics and such has drastically improved the capabilities of ground-based telescopes, but for MMA (to hijack the acronym) are there any advantages of a space-based optical telescope? [1]: https://arxiv.org/abs/1710.05833

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