We consider the possibility of discriminating different theories of gravity using a recently proposed gravitational wave detector of spherical shape. We argue that the spin content of different theories can be extracted relating the measurements of the excited spheroidal vibrational eigenmodes to the Newman-Penrose parameters. The sphere toroidal modes cannot be excited by any metric GW and can be thus used as a veto.
Bianchi, M., Coccia, E., Colacino, C., Fafone, V., Fucito, F. (1996). Testing theories of gravity with a spherical gravitational wave detector. CLASSICAL AND QUANTUM GRAVITY, 13(11), 2865-2873 [10.1088/0264-9381/13/11/003].
Testing theories of gravity with a spherical gravitational wave detector
BIANCHI, MASSIMO;COCCIA, EUGENIO;FAFONE, VIVIANA;
1996-01-01
Abstract
We consider the possibility of discriminating different theories of gravity using a recently proposed gravitational wave detector of spherical shape. We argue that the spin content of different theories can be extracted relating the measurements of the excited spheroidal vibrational eigenmodes to the Newman-Penrose parameters. The sphere toroidal modes cannot be excited by any metric GW and can be thus used as a veto.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
