Possible Resonator Configurations for the Spherical Gravitational Wave Antenna

Magalhães, Nadja S.; Aguiar, O. D.; Johnson, W. W.; Frajuca, Carlos

doi:10.1023/a:1018878212282

Cited by 50 publications

(30 citation statements)

References 6 publications

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“…Also, the precision of the results varies with the choice of the transducers, confirming previous investigation [10].…”

Section: Methods Of Independent Barssupporting

confidence: 86%

“…due to the changes in spacetime. In principle, the spherical geometry of SCHENBERG's antenna implies no preferred direction of observation (i.e., it is omnidirectional) and the all observables needed for gravitational astronomy can be obtained from only one spherical detector appropriately equipped [10,11]. When fully operational, this detector will be able not only to acknowledge the presence of a g.w.…”

Section: Introductionmentioning

confidence: 99%

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Astrophysics from data analysis of spherical gravitational wave detectors

et al. 2007

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The direct detection of gravitational waves will provide valuable astrophysical information about many celestial objects. Also, it will be an important test to general relativity and other theories of gravitation. The gravitational wave detector SCHENBERG has recently undergone its first test run. It is expected to have its first scientific run soon. In this work the data analysis system of this spherical, resonant mass detector is tested through the simulation of the detection of gravitational waves generated during the inspiralling phase of a binary system. It is shown from the simulated data that it is not necessary to have all six transducers operational in order to determine the source's direction and the wave's amplitudes.

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“…Also, the precision of the results varies with the choice of the transducers, confirming previous investigation [10].…”

Section: Methods Of Independent Barssupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Astrophysics from data analysis of spherical gravitational wave detectors

et al. 2007

Self Cite

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show abstract

“…resonant-mass detectors. In principle this geometry has no preferred direction of observation (i.e., it is omnidirectional) and the five observables needed for gravitational as- tronomy could be obtained from only one detector appropriately equipped [6,11]. These are major advantages, but for many years bars were preferred because they were easier to machine and equip.…”

Section: Resonant-mass Detectorsmentioning

confidence: 99%

Challenges in signal analysis of resonant-mass gravitational wave detectors

Magalhães

2005

Braz. J. Phys.

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“…The distribution of six sensors on the surface of the sphere is chosen purposefully [6,7]: they are arranged on the sphere surface in a half-dodecahedron distribution. These transducers are located as if in the center of the 6 connected pentagons in a dodecahedron surface.…”

Section: Introductionmentioning

confidence: 99%

A physical criterion for validating the method used to design mechanical impedance matchers for Mario Schenberg's transducers

Bortoli

Frajuca

Magalhães

et al. 2010

J. Phys.: Conf. Ser.

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Abstract. This work reports improvements made in the modelling of mechanical impedance matchers with mushroom shape using the finite elements method when shell elements type were used instead of tetrahedron elements type. Also, it is presented here an original methodology which makes use of the symmetry of the system and its influence on the mechanical vibrational modes to validate the modelling that was the base for the simulations performed.

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Possible Resonator Configurations for the Spherical Gravitational Wave Antenna

Cited by 50 publications

References 6 publications

Astrophysics from data analysis of spherical gravitational wave detectors

Astrophysics from data analysis of spherical gravitational wave detectors

Challenges in signal analysis of resonant-mass gravitational wave detectors

A physical criterion for validating the method used to design mechanical impedance matchers for Mario Schenberg's transducers

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