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Jack Woehr

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Them Wascally Gravity Waves

October 11, 2010

I opined in my January posting Elusive Gravity Waves that the LIGO Laser Interferometer Gravitational-Wave Observatory experiment may be methodologically flawed. A recent (2010-10-06) paper "First search for gravitational waves from the youngest known neutron star" does little to disabuse one of such a notion.The scores of renowned scientists from many nations who are the cadres of the ongoing experiment and whose name credits on each LIGO paper fill many pages continue to put their best foot forward. Each failure to detect gravity waves by their increasingly well calibrated planetary instrument array is seen as putting new, lower limits on the force exerted by gravity waves, if ever detected.

But the salient fact is stated in the first paragraph of op. cit.:

We present a search for periodic gravitational waves from the neutron star in the supernova remnant Cassiopeia A. The search coherently analyzes data in a 12-day interval taken from the fifth science run of the Laser Interferometer Gravitational-Wave Observatory. It searches gravitational wave frequencies from 100 to 300 Hz, and covers a wide range of first and second frequency derivatives appropriate for the age of the remnant and for different spin-down mechanisms. No gravitational wave signal was detected.

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