An all-sky search of EXPLORER data

被引:9
作者
Astone, P [1 ]
Babusci, D
Bassan, M
Borkowski, KM
Brocco, L
Coccia, E
D'Antonio, S
Fafone, V
Frasca, S
Giordano, G
Jaranowski, P
Królak, A
Marini, A
Minenkov, Y
Modena, I
Modestino, G
Moleti, A
Pai, A
Pallottino, GV
Palomba, C
Pietka, M
Pizzella, G
Quintieri, L
Ricci, F
Rocchi, A
Ronga, F
Terenzi, R
Visco, M
机构
[1] Ist Nazl Fis Nucl, Rome, Italy
[2] Ist Nazl Fis Nucl, Frascati, Italy
[3] Univ Roma Tor Vergata, I-00173 Rome, Italy
[4] Nicholas Copernicus Univ, Ctr Astron, Torun, Poland
[5] Univ Roma La Sapienza, Rome, Italy
[6] Univ Bialystok, Inst Theoret Phys, Bialystok, Poland
[7] Albert Einstein Inst, Golm, Germany
[8] CNR, IFSI, Rome, Italy
关键词
D O I
10.1088/0264-9381/22/18/S38
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We have analysed three data sets, each two days long, of the EXPLORER resonant bar detector. We have searched for continuous gravitational-wave signals from spinning neutron stars. Our data analysis technique was based on the maximum likelihood detection method. We briefly describe the theoretical methods that we used in our search and we present results of the search. The main outcome of our analysis is an upper limit of I X 10(-22) for the dimensionless amplitude of a continuous gravitational-wave signal. The upper limit is for any source location in the sky, any polarization of the wave and for signals of frequency from 921.00 Hz to 921.76 Hz and with spin down from -2.36 X 10(-8) Hz s(-1) to +2.36 x 10(-8) Hz s(-1).
引用
收藏
页码:S1243 / S1254
页数:12
相关论文
共 10 条
[1]  
ABBOTT B, 2004, PHYS REV D, V69
[2]   All-sky upper limit for gravitational radiation from spinning neutron stars [J].
Astone, P ;
Babusci, D ;
Bassan, M ;
Borkowski, KM ;
Coccia, E ;
D'Antonio, S ;
Fafone, V ;
Giordano, G ;
Jaranowski, P ;
Królak, A ;
Marini, A ;
Minenkov, Y ;
Modena, I ;
Modestino, G ;
Moleti, A ;
Pallottino, GV ;
Pietka, M ;
Pizzella, G ;
Quintieri, L ;
Rocchi, A ;
Ronga, F ;
Terenzi, R ;
Visco, M .
CLASSICAL AND QUANTUM GRAVITY, 2003, 20 (17) :S665-S676
[3]   Data analysis of gravitational-wave signals from spinning neutron stars.: IV.: An all-sky search -: art. no. 042003 [J].
Astone, P ;
Borkowski, KM ;
Jaranowski, P ;
Królak, A .
PHYSICAL REVIEW D, 2002, 65 (04)
[4]   Search for periodic gravitational wave sources with the Explorer detector [J].
Astone, P ;
Bassan, A ;
Bonifazi, P ;
Carelli, P ;
Coccia, E ;
Cosmelli, C ;
D'Antonio, S ;
Fafone, V ;
Frasca, S ;
Minenkov, Y ;
Modena, I ;
Modestino, G ;
Moleti, A ;
Pallottino, GV ;
Papa, MA ;
Pizzella, G ;
Quintieri, L ;
Ronga, F ;
Terenzi, R ;
Visco, M .
PHYSICAL REVIEW D, 2002, 65 (02)
[5]   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
[6]   Data analysis of gravitational-wave signals from spinning neutron stars: The signal and its detection [J].
Jaranowski, P ;
Krolak, A ;
Schutz, BF .
PHYSICAL REVIEW D, 1998, 58 (06)
[7]   Data analysis of gravitational-wave signals from spinning neutron stars.: III.: Detection statistics and computational requirements -: art. no. 062001 [J].
Jaranowski, P ;
Królak, A .
PHYSICAL REVIEW D, 2000, 61 (06)
[8]   Data analysis of gravitational-wave signals from spinning neutron stars.: II.: Accuracy of estimation of parameters -: art. no. 063003 [J].
Jaranowski, P ;
Królak, A .
PHYSICAL REVIEW D, 1999, 59 (06)
[9]   Convergence properties of the Nelder-Mead simplex method in low dimensions [J].
Lagarias, JC ;
Reeds, JA ;
Wright, MH ;
Wright, PE .
SIAM JOURNAL ON OPTIMIZATION, 1998, 9 (01) :112-147
[10]  
TRETTER SA, 1976, INTRO DISCRETE TIME