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5 Facts We Can Learn If LIGO Detects Merging Neutron Stars (Synopsis)

31 Aug 2017, 14:00 UTC
5 Facts We Can Learn If LIGO Detects Merging Neutron Stars (Synopsis) AEI Potsdam-Golm
(200 words excerpt, click title or image to see full post)

Two years ago, advanced LIGO turned on, and in that brief time, it’s already revealed a number of gravitational wave events. All of them, to no one’s surprise, have been merging black holes, since those are the easiest class of events for LIGO to detect. But beyond black holes, LIGO should also be sensitive to merging neutron stars. Even though the range over which LIGO can see them is much smaller, if there are enough neutron star-neutron star mergers happening, we might have a chance.
Illustrated here is the range of Advanced LIGO and its capability of detecting merging black holes. Merging neutron stars may have only one-tenth the range and 0.1% the volume, but if neutron stars are abundant enough, LIGO may have a chance at those, too.

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