Data analysis of gravitational-wave signals from spinning neutron stars.: II.: Accuracy of estimation of parameters -: art. no. 063003

被引:49
作者
Jaranowski, P
Królak, A
机构
[1] Max Planck Inst Gravitat Phys, Albert Einstein Inst, D-14473 Potsdam, Germany
[2] Bialystok Univ, Inst Phys, PL-15424 Bialystok, Poland
[3] Polish Acad Sci, Inst Math, PL-00950 Warsaw, Poland
来源
PHYSICAL REVIEW D | 1999年 / 59卷 / 06期
关键词
D O I
10.1103/PhysRevD.59.063003
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We examine the accuracy of estimation of parameters of the gravitational-wave signals from spinning neutron stars that can be achieved from observations by Earth-based laser interferometers. We consider a model of the signal consisting of two narrow-band components and including both phase and amplitude modulation. We calculate approximate values of the rms errors of the parameter estimators using the Fisher information matrix. We carry out extensive Monte Carlo simulations and obtain cumulative distribution functions of rms errors of astrophysically interesting parameters: the amplitude of the signal, wobble angle, position of the sourer in the sky, frequency, and spin-down coefficients. We consider both all-sky searches and directed searches. We also examine the possibility of the determination of neutron star proper motion. We perform simulations for all laser-interferometric detectors that an currently under construction and for several possible lengths of the observation rime and sizes of the parameter space. We find that observations of continuous gravitational-wave signals from neutron stars by laser-interferometric detectors will provide very accurate information about their astrophysical properties. We derive several simplified models of the Signal that can be used in the theoretical investigations of the data analysis schemes independently of the physical mechanisms generating the gravitational-wave signal. [S0556-2821(99)05604-0].
引用
收藏
页数:29
相关论文
共 14 条
[1]   LIGO - THE LASER-INTERFEROMETER-GRAVITATIONAL-WAVE-OBSERVATORY [J].
ABRAMOVICI, A ;
ALTHOUSE, WE ;
DREVER, RWP ;
GURSEL, Y ;
KAWAMURA, S ;
RAAB, FJ ;
SHOEMAKER, D ;
SIEVERS, L ;
SPERO, RE ;
THORNE, KS ;
VOGT, RE ;
WEISS, R ;
WHITCOMB, SE ;
ZUCKER, ME .
SCIENCE, 1992, 256 (5055) :325-333
[2]   SEARCH TEMPLATES FOR GRAVITATIONAL-WAVES FROM PRECESSING, INSPIRALING BINARIES [J].
APOSTOLATOS, TA .
PHYSICAL REVIEW D, 1995, 52 (02) :605-620
[3]   THE VIRGO PROJECT - A WIDE BAND ANTENNA FOR GRAVITATIONAL-WAVE DETECTION [J].
BRADASCHIA, C ;
DELFABBRO, R ;
DIVIRGILIO, A ;
GIAZOTTO, A ;
KAUTZKY, H ;
MONTELATICI, V ;
PASSUELLO, D ;
BRILLET, A ;
CREGUT, O ;
HELLO, P ;
MAN, CN ;
MANH, PT ;
MARRAUD, A ;
SHOEMAKER, D ;
VINET, JY ;
BARONE, F ;
DIFIORE, L ;
MILANO, L ;
RUSSO, G ;
AGUIRREGABIRIA, JM ;
BEL, H ;
DURUISSEAU, JP ;
LEDENMAT, G ;
TOURRENC, P ;
CAPOZZI, M ;
LONGO, M ;
LOPS, M ;
PINTO, I ;
ROTOLI, G ;
DAMOUR, T ;
BONAZZOLA, S ;
MARCK, JA ;
GOURGHOULON, Y ;
HOLLOWAY, LE ;
FULIGNI, F ;
IAFOLLA, V ;
NATALE, G .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1990, 289 (03) :518-525
[4]   Searching for periodic sources with LIGO [J].
Brady, PR ;
Creighton, T ;
Cutler, C ;
Schutz, BF .
PHYSICAL REVIEW D, 1998, 57 (04) :2101-2116
[5]  
DANZMANN K, 1995, GRAVITATIONAL WAVE E, P100
[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]  
KAWAMURA S, COMMUNICATION
[8]   ESTIMATION OF THE POST-NEWTONIAN PARAMETERS IN THE GRAVITATIONAL-WAVE EMISSION OF A COALESCING BINARY [J].
KROLAK, A ;
KOKKOTAS, KD ;
SCHAFER, G .
PHYSICAL REVIEW D, 1995, 52 (04) :2089-2111
[9]  
KROLAK A, 1997, VERY HIGH ENERGY PHE, P329
[10]   Pulsar statistics .4. Pulsar velocities [J].
Lorimer, DR ;
Bailes, M ;
Harrison, PA .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1997, 289 (03) :592-604