Mario Schenberg (Gravitational Wave Detector)

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Wikipedia

Mario Schenberg
Alternative namesBrazilian Graviton Project Edit this at Wikidata
Location(s)São Paulo, Brazil
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The Mario Schenberg (Gravitational Wave Detector, or Brazilian Graviton Project[1] or Graviton) is a spherical, resonant-mass, gravitational wave detector formerly run by the Physics Institute of the University of São Paulo, named after Mário Schenberg. Similar to the Dutch-run MiniGrail, the 1.15 ton, 65 cm diameter spherical test mass is suspended in a cryogenic vacuum enclosure, kept at 20 mK and is sensitive to signals with frequencies between 3150 Hz and 3260 Hz; and the sensors (transducers) for this detector/antenna are developed at the National Institute for Space Research (INPE), in Sao José dos Campos, Brazil.[2][3] As of 2016, the antenna has not detected any gravitational waves, and development of the antenna continues. It has been decided that the antenna will be transferred from the University of São Paulo to INPE.[4] As of late 2023, the detector remained disassembled.[5]

See also

References

  1. ↑ Aguiar; et al. (October 2002). "The status of the Brazilian spherical detector". Class. Quantum Grav. 19 (1949): 1949–1953. Bibcode:2002CQGra..19.1949A. doi:10.1088/0264-9381/19/7/397. S2CID 250864475.
  2. ↑ Aguiar; et al. (April 2005). "The Brazilian gravitational wave detector Mario Schenberg: progress and plans". Class. Quantum Grav. 22 (10): S209 – S214. Bibcode:2005CQGra..22S.209A. CiteSeerX 10.1.1.497.325. doi:10.1088/0264-9381/22/10/011. S2CID 110087646.
  3. ↑ Aguiar; et al. (May 2008). "The Schenberg spherical gravitational wave detector: the first commissioning runs". Class. Quantum Grav. 25 (11) 114042. Bibcode:2008CQGra..25k4042A. doi:10.1088/0264-9381/25/11/114042. S2CID 122231110.
  4. ↑ Oliveira Jr; et al. (October 2016). "The Mario Schenberg Gravitational Wave Antenna". Brazilian Journal of Physics. 46 (5): 596–603. Bibcode:2016BrJPh..46..596O. doi:10.1007/s13538-016-0436-1. S2CID 256197402.
  5. ↑ Martins, Julio Cesar; Heng, Ik Siong; Melo, Iara Tosta e; Aguiar, Odylio Denys (2023-11-09), "Search for gravitational-wave bursts in LIGO data at the Schenberg antenna sensitivity range", Physical Review D, 109 (2) 023026, arXiv:2301.06751, doi:10.1103/PhysRevD.109.023026