The EXPLORER gravitational wave antenna: recent improvements and performances

被引：8

作者：

Astone, P

Bassan, M

Bonifazi, P

Carelli, P

Castellano, MG

Cavallari, G

Coccia, E

Cosmelli, C

D'Antonio, S

Fafone, V

Federici, G

Minenkov, Y

Modestino, G

Modena, I

Moleti, A

Pizzella, G

Pallottino, GV

Quintieri, L

Rocchi, A

Ronga, F

Terenzi, R

Torrioli, G

Visco, M

机构：

[1] Ist Nazl Fis Nucl, Sez Roma 1, Rome, Italy

[2] Univ Roma Tor Vergata, Dipartimento Fis, I-00173 Rome, Italy

[3] Ist Nazl Fis Nucl, Sez Roma 2, Rome, Italy

[4] CNR, Ist Fis Spazio Interplanetario, Rome, Italy

[5] Univ Aquila, Dipartimento Energet, Roio Poggio, Italy

[6] CNR, Ist Fis Stato Solido, Rome, Italy

[7] CERN, Geneva, Switzerland

[8] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[9] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

来源：

CLASSICAL AND QUANTUM GRAVITY | 2002年 / 19卷 / 07期

关键词：

D O I：

10.1088/0264-9381/19/7/391

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Since the beginning of 2000 the EXPLORER gravity wave (GW) detector has been operated continuously after a stop devoted to improve the apparatus. The antenna has been equipped with a new read-out. The use of a new transducer, characterized by a very small gap, and a dc-SQUID with a high coupling, led to a better sensitivity and a larger bandwidth. The EXPLORER sensitivity in terms of spectral noise amplitude, at present (June 2001), is 10(-20) Hz(-1/2) over a bandwidth of 35 Hz and 3 x 10(-21) Hz(-1/2) with a bandwidth of about 6 Hz, corresponding to a sensitivity to short conventional GW bursts of h = 4 x 10(-19). The performance is stable and the apparatus is taking data with a duty cycle in excess of 80%.

引用

页码：1905 / 1910

页数：6

共 9 条

[1] First search for gravitational wave bursts with a network of detectors [J].

Allen, ZA ;

Astone, P ;

Baggio, L ;

Busby, D ;

Bassan, M ;

Blair, DG ;

Bonaldi, M ;

Bonifazi, P ;

Carelli, P ;

Cerdonio, M ;

Coccia, E ;

Conti, L ;

Cosmelli, C ;

Visconti, VC ;

D'Antonio, S ;

Fafone, V ;

Falferi, P ;

Fortini, P ;

Frasca, S ;

Hamilton, WO ;

Heng, IS ;

Ivanov, EN ;

Johnson, WW ;

Kingham, M ;

Locke, CR ;

Marini, A ;

Martinucci, V ;

Mauceli, E ;

McHugh, MP ;

Mezzena, R ;

Minenkov, Y ;

Modena, I ;

Modestino, G ;

Moleti, A ;

Ortolan, A ;

Pallottino, GV ;

Pizzella, G ;

Prodi, GA ;

Rocco, E ;

Ronga, F ;

Salemi, F ;

Santostasi, G ;

Taffarello, L ;

Terenzi, R ;

Tobar, ME ;

Vedovato, G ;

Vinante, A ;

Visco, M ;

Vitale, S ;

Votano, L .

PHYSICAL REVIEW LETTERS, 2000, 85 (24) :5046-5050

[2] Cosmic rays observed by the resonant gravitational wave detector NAUTILUS [J].

Astone, P ;

Bassan, M ;

Bonifazi, P ;

Carelli, P ;

Coccia, E ;

Fafone, V ;

D'Antonio, S ;

Frasca, S ;

Marini, A ;

Mauceli, E ;

Mazzitelli, G ;

Minenkov, Y ;

Modena, I ;

Modestino, G ;

Moleti, A ;

Pallottino, GV ;

Papa, MA ;

Pizzella, G ;

Ronga, F ;

Terenzi, R ;

Visco, M ;

Votano, L .

PHYSICAL REVIEW LETTERS, 2000, 84 (01) :14-17

[3] LONG-TERM OPERATION OF THE ROME EXPLORER CRYOGENIC GRAVITATIONAL-WAVE DETECTOR [J].

ASTONE, P ;

BASSAN, M ;

BONIFAZI, P ;

CARELLI, P ;

CASTELLANO, MG ;

CAVALLARI, G ;

COCCIA, E ;

COSMELLI, C ;

FAFONE, V ;

FRASCA, S ;

MAJORANA, E ;

MODENA, I ;

PALLOTTINO, GV ;

PIZZELLA, G ;

RAPAGNANI, P ;

RICCI, F ;

VISCO, M .

PHYSICAL REVIEW D, 1993, 47 (02) :362-375

[4] The gravitational wave detector NAUTILUS operating at T=0.1 K [J].

Astone, P ;

Bassan, M ;

Bonifazi, P ;

Carelli, P ;

Coccia, E ;

Cosmelli, C ;

Fafone, V ;

Frasca, S ;

Marini, A ;

Mazzitelli, G ;

Minenkov, Y ;

Modena, I ;

Modestino, G ;

Moleti, A ;

Pallottino, GV ;

Papa, MA ;

Pizzella, G ;

Rapagnani, P ;

Ricci, F ;

Ronga, F ;

Terenzi, R ;

Visco, M ;

Votano, L .

ASTROPARTICLE PHYSICS, 1997, 7 (03) :231-243

[5] Search for gravitational radiation with the Allegro and Explorer detectors [J].

Astone, P ;

Bassan, M ;

Bonifazi, P ;

Carelli, P ;

Coccia, E ;

Cosmelli, C ;

Fafone, V ;

Frasca, S ;

Geng, K ;

Hamilton, WO ;

Johnson, WW ;

Mauceli, E ;

McHugh, MP ;

Merkowitz, S ;

Modena, I ;

Modestino, G ;

Morse, A ;

Pallottino, GV ;

Papa, MA ;

Pizzella, G ;

Solomonson, N ;

Terenzi, R ;

Visco, M ;

Zhu, N .

PHYSICAL REVIEW D, 1999, 59 (12)

[6] Upper limit for a gravitational-wave stochastic background with the EXPLORER and NAUTILUS resonant detectors [J].

Astone, P ;

Bassan, M ;

Bonifazi, P ;

Carelli, P ;

Coccia, E ;

Cosmelli, C ;

Fafone, V ;

Frasca, S ;

Marini, A ;

Mazzitelli, G ;

Modena, I ;

Modestino, G ;

Moleti, A ;

Pallottino, GV ;

Papa, MA ;

Pizzella, G ;

Rapagnani, P ;

Ricci, F ;

Ronga, F ;

Terenzi, R ;

Visco, M ;

Votano, L .

PHYSICS LETTERS B, 1996, 385 (1-4) :421-424

[7]

BASSAN M, UNPUB GASP NUMERICAL

[8]

BASSAN M, 1997, P VIRG C GRAV WAV SO, P225

[9]

PRODI GA, 1998, AURIGA 2 E AM C GRAV, P148

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