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Environmental Monitoring (Environmental Monitoring)
colla, fiori - 19:48 Monday 23 May 2011 (29444) Print this report
Noise around Vela (22.38 Hz)
Looking at the NoEMi pages I've noticed that around the Vela pulsar some weak noise lines appeared in the last days.

There are two bigger lines at 22.8 and 23.2 Hz and a smaller one at 22.3 Hz.

The lines were actually below the threshold set on the algorithm, therefore they weren't put in the lines database so far. I've set a lower threshold since yesterday, so that Noemi will be able to detect and "follow" at least the two bigger lines.

Besides the lines, looking at the time-frequency plot since April 25th (in attachement) it seems that a "noise bump", which at the beginning was above 24 Hz, since ~ May 10th lowered between 22.5 and 23.5 Hz, right above the Vela!

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