[ExI] LIGO

[John Clark]

Unless there is some last second glitch the 2 LIGO detectors in the USA and
the Virgo detector in Italy will go back online on Monday. The 2 LIGO
detectors will be about 40% more sensitive now after the upgrade and the
slightly smaller Virgo detector about 50% better. And because their ability
to detect waves only decreases lineally with distance not as distance
squared together they will be able to see gravitational events in about 3
times the previous volume. They should run for a year before being shut
down for yet another upgrade.

John K Clark
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