> "LIGO is sensitive to binary NS (and NS stellar-BH mergers) too..."
Sure, and the extra info is appreciated, but here is what I was responding to:
>"Gravitational waves are all candidates until they can be confirmed with external sources."
I believe this is false. They expect to detect many gravitational waves that will never be "confirmed with external sources". Namely, those triggered by black holes, and for the reasons you mention.
I don't think "external sources" necessarily means "multi-messenger." GW detectors are sensitive to local interference, so we have three of them spread across the globe with non-overlapping blind spots. A GW must be detected in at least two of the detectors to be confirmed.
I'm not sure if that's what @dogma1138 meant, but I'm pretty sure that's how the past GW detections have been confirmed.
Sure, and the extra info is appreciated, but here is what I was responding to:
>"Gravitational waves are all candidates until they can be confirmed with external sources."
I believe this is false. They expect to detect many gravitational waves that will never be "confirmed with external sources". Namely, those triggered by black holes, and for the reasons you mention.