Long term operation of a niobium resonant bar gravitational wave antenna
Two years of continuous operation of a resonant bar gravitational wave antenna with noise temperatures of about 3 mK and strain sensitivity of h ∼ 10 −18 are reported. An average of about 40 candidate events are observed each day, most of which are of non-thermal origin. Coincidence analysis with lo...
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| Published in | Physics letters. A Vol. 218; no. 3; pp. 190 - 196 |
|---|---|
| Main Authors | , , , |
| Format | Journal Article |
| Language | English |
| Published |
Elsevier B.V
05.08.1996
|
| Online Access | Get full text |
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| Abstract | Two years of continuous operation of a resonant bar gravitational wave antenna with noise temperatures of about 3 mK and strain sensitivity of
h ∼ 10
−18 are reported. An average of about 40 candidate events are observed each day, most of which are of non-thermal origin. Coincidence analysis with local environmental monitors shows that only a few percent of the candidate events can be attributed to seismic noise or electromagnetic interference. The remaining events are of unknown but probably mundane origin such as non-stationary noise in the cryogenic microwave readout system or strain relief in the antenna or vibration isolation system. Assuming the same event rate of 40 events per day for all three world-wide antennas, one accidental coincidence in a correlation experiment is expected every 320 years. At its present sensitivity, the antenna is capable of detecting the conversion of a mass of order 10
−2
M
⊙ to gravitational waves at the galactic centre. |
|---|---|
| AbstractList | Two years of continuous operation of a resonant bar gravitational wave antenna with noise temperatures of about 3 mK and strain sensitivity of
h ∼ 10
−18 are reported. An average of about 40 candidate events are observed each day, most of which are of non-thermal origin. Coincidence analysis with local environmental monitors shows that only a few percent of the candidate events can be attributed to seismic noise or electromagnetic interference. The remaining events are of unknown but probably mundane origin such as non-stationary noise in the cryogenic microwave readout system or strain relief in the antenna or vibration isolation system. Assuming the same event rate of 40 events per day for all three world-wide antennas, one accidental coincidence in a correlation experiment is expected every 320 years. At its present sensitivity, the antenna is capable of detecting the conversion of a mass of order 10
−2
M
⊙ to gravitational waves at the galactic centre. |
| Author | Blair, D.G. Ivanov, E.N. Heng, I.S. Tobar, M.E. |
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| CitedBy_id | crossref_primary_10_1103_PhysRevD_65_122002 crossref_primary_10_1023_A_1001916031271 crossref_primary_10_1088_1748_0221_7_03_P03012 crossref_primary_10_1088_0953_4075_38_9_004 crossref_primary_10_1140_epjh_e2016_70036_8 crossref_primary_10_1088_0034_4885_63_9_201 crossref_primary_10_1088_1402_4896_ac0d30 crossref_primary_10_1023_A_1001942721047 crossref_primary_10_1103_PhysRevLett_85_5046 crossref_primary_10_1016_j_newar_2022_101659 crossref_primary_10_1016_S0370_1573_99_00102_7 crossref_primary_10_1016_S0927_6505_98_00033_4 crossref_primary_10_12942_lrr_2000_3 crossref_primary_10_12942_lrr_2011_5 crossref_primary_10_1016_S0273_1177_99_00981_3 crossref_primary_10_1088_0264_9381_19_19_304 crossref_primary_10_1016_S0011_2275_98_00041_1 crossref_primary_10_1088_0264_9381_18_19_317 crossref_primary_10_1103_PhysRevD_68_022001 crossref_primary_10_1046_j_1365_8711_2000_03544_x |
| Cites_doi | 10.1063/1.1144327 10.1007/BF02510882 10.1103/PhysRevLett.74.1908 10.1063/1.1143975 10.1103/PhysRevD.47.362 10.1088/0022-3727/28/8/025 |
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| References | Veitch (BIB7) 1991 Thorne (BIB14) 1987 Pallittino (BIB10) 1980; Vol. 124 Hamilton (BIB1) 1992 Ivanov, Turner, Blar (BIB6) 1993; 64 Blair (BIB3) 1993 Astone (BIB2) 1993; 47 Blair, Ivanov, Tobar, Turner, van Kann, Heng (BIB4) 1995; 74 Johnson (BIB12) 1995 Blair, Frasca, Pizzella (BIB13) 1989 Ivanov, Tobar, Turner, Blair (BIB5) 1993; 64 Astone, Bonifazi, Pallottino, Pizzella (BIB9) 1994; 17 Tobar (BIB8) 1995; 28 P.J. Turner, Ph.D. thesis, University of Western Australia, to be published. Blair (10.1016/0375-9601(96)00409-4_BIB3) 1993 Astone (10.1016/0375-9601(96)00409-4_BIB2) 1993; 47 Veitch (10.1016/0375-9601(96)00409-4_BIB7) 1991 Hamilton (10.1016/0375-9601(96)00409-4_BIB1) 1992 Ivanov (10.1016/0375-9601(96)00409-4_BIB6) 1993; 64 Astone (10.1016/0375-9601(96)00409-4_BIB9) 1994; 17 Thorne (10.1016/0375-9601(96)00409-4_BIB14) 1987 Tobar (10.1016/0375-9601(96)00409-4_BIB8) 1995; 28 Ivanov (10.1016/0375-9601(96)00409-4_BIB5) 1993; 64 10.1016/0375-9601(96)00409-4_BIB11 Blair (10.1016/0375-9601(96)00409-4_BIB4) 1995; 74 Pallittino (10.1016/0375-9601(96)00409-4_BIB10) 1980; Vol. 124 Blair (10.1016/0375-9601(96)00409-4_BIB13) 1989 Johnson (10.1016/0375-9601(96)00409-4_BIB12) 1995 |
| References_xml | – volume: 47 start-page: 362 year: 1993 ident: BIB2 publication-title: Phys. Rev. D contributor: fullname: Astone – volume: 74 start-page: 1908 year: 1995 ident: BIB4 publication-title: Phys. Rev. Lett. contributor: fullname: Heng – start-page: 988 year: 1992 ident: BIB1 publication-title: Proc. 6th Marcel Grossmann Meeting on General relativity contributor: fullname: Hamilton – volume: 64 start-page: 3191 year: 1993 ident: BIB6 publication-title: Rev. Sci. Instr. contributor: fullname: Blar – start-page: 285 year: 1989 ident: BIB13 publication-title: Gravitational wave data analysis contributor: fullname: Pizzella – start-page: 330 year: 1987 ident: BIB14 publication-title: 300 years of gravitation contributor: fullname: Thorne – start-page: 591 year: 1993 ident: BIB3 publication-title: Some new trends on fluid mechanics and theoretical physics contributor: fullname: Blair – volume: 64 start-page: 1905 year: 1993 ident: BIB5 publication-title: Rev. Sci. Instr. contributor: fullname: Blair – volume: 28 start-page: 1729 year: 1995 ident: BIB8 publication-title: J. Phys. D contributor: fullname: Tobar – year: 1995 ident: BIB12 publication-title: Aspen Winter Conf. on Gravitational waves and their detection contributor: fullname: Johnson – start-page: 186 year: 1991 ident: BIB7 publication-title: The detection of gravitational waves contributor: fullname: Veitch – volume: 17 start-page: 713 year: 1994 ident: BIB9 publication-title: Nouvo Cimento C contributor: fullname: Pizzella – volume: Vol. 124 start-page: 341 year: 1980 ident: BIB10 publication-title: Gravitational radiation, collapsed objects and exact solutions contributor: fullname: Pallittino – year: 1995 ident: 10.1016/0375-9601(96)00409-4_BIB12 contributor: fullname: Johnson – start-page: 988 year: 1992 ident: 10.1016/0375-9601(96)00409-4_BIB1 contributor: fullname: Hamilton – volume: 64 start-page: 3191 year: 1993 ident: 10.1016/0375-9601(96)00409-4_BIB6 publication-title: Rev. Sci. Instr. doi: 10.1063/1.1144327 contributor: fullname: Ivanov – start-page: 285 year: 1989 ident: 10.1016/0375-9601(96)00409-4_BIB13 contributor: fullname: Blair – ident: 10.1016/0375-9601(96)00409-4_BIB11 – volume: 17 start-page: 713 year: 1994 ident: 10.1016/0375-9601(96)00409-4_BIB9 publication-title: Nouvo Cimento C doi: 10.1007/BF02510882 contributor: fullname: Astone – volume: 74 start-page: 1908 year: 1995 ident: 10.1016/0375-9601(96)00409-4_BIB4 publication-title: Phys. Rev. Lett. doi: 10.1103/PhysRevLett.74.1908 contributor: fullname: Blair – volume: Vol. 124 start-page: 341 year: 1980 ident: 10.1016/0375-9601(96)00409-4_BIB10 contributor: fullname: Pallittino – start-page: 186 year: 1991 ident: 10.1016/0375-9601(96)00409-4_BIB7 contributor: fullname: Veitch – volume: 64 start-page: 1905 year: 1993 ident: 10.1016/0375-9601(96)00409-4_BIB5 publication-title: Rev. Sci. Instr. doi: 10.1063/1.1143975 contributor: fullname: Ivanov – volume: 47 start-page: 362 year: 1993 ident: 10.1016/0375-9601(96)00409-4_BIB2 publication-title: Phys. Rev. D doi: 10.1103/PhysRevD.47.362 contributor: fullname: Astone – start-page: 591 year: 1993 ident: 10.1016/0375-9601(96)00409-4_BIB3 contributor: fullname: Blair – start-page: 330 year: 1987 ident: 10.1016/0375-9601(96)00409-4_BIB14 contributor: fullname: Thorne – volume: 28 start-page: 1729 year: 1995 ident: 10.1016/0375-9601(96)00409-4_BIB8 publication-title: J. Phys. D doi: 10.1088/0022-3727/28/8/025 contributor: fullname: Tobar |
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h ∼ 10
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| Title | Long term operation of a niobium resonant bar gravitational wave antenna |
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