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Gravitational wave data...
Is there a paper that describes the time delay, if any, between the two sites that were running at that time?
David A. Smith |
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Gravitational wave data...
In article ,
dlzc wrote: Is there a paper that describes the time delay, if any, between the two sites that were running at that time? Sure. The first paper, http://arxiv.org/abs/1602.03837, reports that there was a 6.9 ms delay. Here are two papers that use that to constrain the speed of propagation of the wave: http://arxiv.org/abs/1602.04188, http://arxiv.org/abs/1602.04764. (With only two detectors, we can't measure the actual speed, because we don't know the angle at which the wave front is arriving at the detectors.) Steve Carlip |
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Gravitational wave data...
Dear Steven Carlip:
On Tuesday, February 16, 2016 at 9:43:12 PM UTC-7, Steven Carlip wrote: In article , dlzc wrote: Is there a paper that describes the time delay, if any, between the two sites that were running at that time? Sure. The first paper, http://arxiv.org/abs/1602.03837, reports that there was a 6.9 ms delay. Descriptive text for Figure 1. Here are two papers that use that to constrain the speed of propagation of the wave: http://arxiv.org/abs/1602.04188, http://arxiv.org/abs/1602.04764. (With only two detectors, we can't measure the actual speed, because we don't know the angle at which the wave front is arriving at the detectors.) Well, true, however there was a related observation that "maybe" there was a GRB (or SN?) associated with this, and that might give us the angle, etc. Not looking to question the speed... absolutely not an S-wave or something transmitted at the speed of sound in rock, nor probably some "rotating shear wave" from the source, which would for any distant source be instantaneous at our end for finite (and interesting) speeds of rotation. David A. Smith |
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