[1112.3090] The cross-correlation search for a hot spot of gravitational waves : Numerical study for point spread function

Authors: Yuta Okada, Nobuyuki Kanda, Sanjeev Dhurandhar, Hideyuki Tagoshi, Hirotaka Takahashi

Date: 14 Dec 2011

Abstract: The cross-correlation search for gravitational wave, which is known as 'radiometry', has been previously applied to map of the gravitational wave stochastic background in the sky and also to target on gravitational wave from rotating neutron stars/pulsars. We consider the Virgo cluster where may be appear as ‘hot spot’ spanning few pixels in the sky in radiometry analysis. Our results show that sufficient signal to noise ratio can be accumulated with integration times of the order of a year. We also construct numerical simulation of radiometry analysis, assuming current constructing/upgrading ground-based detectors. Point spread function of the injected sources are confirmed by numerical test. Typical resolution of radiometry analysis is a few square degree which corresponds to several thousand pixels of sky mapping.

abs pdf

Dec 16, 2011

1112.3090 (/preprints)
2011-12-16, 22:07 [edit]

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