Can lightning be a noise source for a spherical gravitational wave antenna?

Journal Article · Tue Nov 15 04:00:00 EST 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.72.102003· OSTI ID:20711517

Magalhaes, Nadja Simao ^[1]; Aguiar, Odylio Denys de ^[2]; Frajuca, Carlos ^[1]

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1. Centro Federal de Educacao Tecnologica de Sao Paulo, Rua Pedro Vicente 625, Sao Paulo, SP 01109-010 (Brazil)
2. Divisao de Astrofisica, Instituto Nacional de Pesquisas Espaciais, Av. dos Astronautas 1758, Sao Jose dos Campos, SP 12227-010 (Brazil)

The detection of gravitational waves is a very active research field at the moment. In Brazil the gravitational wave detector is called Mario SCHENBERG. Because of its high sensitivity it is necessary to model mathematically all known noise sources so that digital filters can be developed that maximize the signal-to-noise ratio. One of the noise sources that must be considered are the disturbances caused by electromagnetic pulses due to lightnings close to the experiment. Such disturbances may influence the vibrations of the antenna's normal modes and mask possible gravitational wave signals. In this work we model the interaction between lightnings and SCHENBERG antenna and calculate the intensity of the noise due to a close lightning stroke in the detected signal. We find that the noise generated does not disturb the experiment significantly.

• OSTI ID: 20711517
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 10 Vol. 72; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTENNAS
DETECTION
DIGITAL FILTERS
DISTURBANCES
ELECTROMAGNETIC PULSES
GRAVITATIONAL WAVE DETECTORS
GRAVITATIONAL WAVES
LIGHTNING
NOISE
SENSITIVITY
SIGNAL-TO-NOISE RATIO
SIGNALS