3 ms·
It does come from a single point but they can not tell where inside the shaded area of space the single point was. As far as I can tell from their website the
by petschge 7y ago
It does come from a single point but they can not tell where inside the shaded area of space the single point was.
As far as I can tell from their website the event was seen by Virgo and only one of the Ligo detectors (Livingston), which makes localization in the sky rather uncertain. No clue at the moment why the second Ligo detector (Hanford) did not see it.
- turndown 7y agoFrom what I understand a lack of detection can also tell you something about where the point of origin is.
- petschge 7y agoIf you had a working detector taking good data than not hearing it also tells you something. But if the detector was not taking good data for whatever reason (local seismic event, high surface winds, technical glitch), then it doesn't help you. Also afaik (and I am not an expert) the first automatic pipeline doesn't use non-detections.
- SiempreViernes 7y agoIf not all of them see it and they have this shitty sky location, the one missing was either offline or its data was unusable for other reasons (ie someone left their phone on one of the mirrors and got a call).