Tuesday, December 6, 2016
1:00 pm

LIGO Seminar

Effect of sine-Gaussian transients on searches of gravitational waves from compact coalescing binaries
Sanjeev Dhurandhar, Physics, IUCAA

For detecting compact coalescing binary (CBC) signals it is of vital

importance to characterise and identify non-Gaussian, non-stationary noise

in advanced detectors. Two important classes of transients that contribute

to the noise are considered, namely, the sine-Gaussian glitch and the

chirping sine-Gaussian glitch. These glitches have an adverse effect on the

senstivity of CBC searches. We study the response of the bank of CBC

inspiral templates to these two families of glitches which we characterise

by few parameters such as the central frequency, quality factor etc.

Specifically, we study the signal-to-noise (SNR) and the time-lag

distributions of the triggers as a funtion of these parameters. We propose

that the distinctions between the distributions of glitches as compared with

the CBC signals may be utilised to develop useful discriminators.  


We plan to broadcast these talks using TeamSpeak. Use a sub-channel of LIGO Lab called "LIGO Seminar," which is not password protected.

NOTE: These and all other scheduled LIGO seminars are listed on the LIGO Laboratory seminar calendar for convenient reference.

Contact Sydney Meshkov syd@ligo.caltech.edu
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