Interesting data (Interesting data)swinkels, ruggi, tacca - 20:39 Monday 06 June 2011 (29559)
Print this reportBaffle-noise due to earthquake?While looking at data from Saturday's earthquakes, Paolo noticed that the sensitivity stays bad for almost 10 minutes, even though the quake is over and all suspension- and alignment-signals seems to have calmed down. A spectrogram of the dark-fringe shows there are some noise bumps which slowly decay in frequency starting from around 400 Hz. Our money is on scattered light by excited baffles. We had a look at fast spectrograms, but couldn't detect any arches. Also the seismometers on the detection tower and the cryotrap didn't show any excited resonance.
