Gaussian-spindle gravitational wave antenna and single-antenna anticoincidence experiments

Journal Article · Tue Feb 15 04:00:00 EST 1977 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.15.969· OSTI ID:7226095

Gowdy, R H

The stretching modes of a long, thin Gaussian spindle are calculated and compared with those of a long, thin cylinder. The cross sections of these modes for gravitational radiation are calculated and compared. It is found that the fundamental mode of the spindle has between 1.2 and 1.6 times the cross section of the fundamental mode of a comparable cylinder, depending on how the comparison is made. The frequencies of the spindle stretch modes are proportional to the square root of the mode number and only the fundamental mode couples to gravitational waves. This behavior makes the spindle particularly useful for a single-antenna anticoincidence experiment which looks for excitations of the fundamental mode that are not in coincidence with excitations of higher modes. Such an experiment should be quite effective at rejecting nonthermal noise and demonstrating the presence of gravitational waves.

• Research Organization: Center for Theoretical Physics, Department of Physics and Astronomy, University of Maryland, College Park, Maryland 20742
• OSTI ID: 7226095
• Journal Information: Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 15:4; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

640106* -- Astrophysics & Cosmology-- Cosmology
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANTENNAS
ANTICOINCIDENCE
CROSS SECTIONS
DIFFERENTIAL EQUATIONS
ELECTRICAL EQUIPMENT
EQUATIONS
EQUIPMENT
FUNCTIONS
GRAVITATIONAL RADIATION
GRAVITATIONAL WAVE DETECTORS
LAGRANGIAN FUNCTION
MEASURING INSTRUMENTS
RADIATION DETECTORS
RADIATIONS
WAVE EQUATIONS