scholarly journals Matched filter for multitransducer resonant gravitational wave antennas

2006 ◽  
Vol 74 (12) ◽  
Author(s):  
Maria Alice Gasparini ◽  
Florian Dubath
Keyword(s):  
Gravitational Wave ◽  
Matched Filter

scholarly journals Gravitational wave chirp search: Economization of post-Newtonian matched filter bank via cardinal interpolation

2000 ◽  
Vol 62 (12) ◽  
Author(s):  
R. P. Croce ◽  
Th. Demma ◽  
V. Pierro ◽  
I. M. Pinto ◽  
D. Churches ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Filter Bank ◽  
Matched Filter ◽  
Cardinal Interpolation

scholarly journals Measuring the eccentricity of GW170817 and GW190425

2020 ◽  
Vol 497 (2) ◽  
pp. 1966-1971 ◽  
Author(s):  
Amber K Lenon ◽  
Alexander H Nitz ◽  
Duncan A Brown
Keyword(s):  
Parameter Estimation ◽  
Neutron Star ◽  
Gravitational Wave ◽  
Matched Filter ◽  
Wave Frequency ◽  
Limited Information ◽  
Binary Neutron Star ◽  
Wave Emission

ABSTRACT Two binary neutron star mergers, GW170817 and GW190425, have been detected by Advanced LIGO and Virgo. These signals were detected by matched-filter searches that assume that the star’s orbit has circularized by the time their gravitational-wave emission is observable. This suggests that their eccentricity is low, but full parameter estimation of their eccentricity has not yet been performed. We use gravitational-wave observations to measure the eccentricity of GW170817 and GW190425. We find that the eccentricity at a gravitational-wave frequency of 10 Hz is e ≤ 0.024 and e ≤ 0.048 for GW170817 and GW190425, respectively (90 per cent confidence). This is consistent with the binaries being formed in the field, as such systems are expected to have circularized to e ≤ 10−4 by the time they reach the LIGO–Virgo band. Our constraint is a factor of 2 smaller that an estimate based on GW170817 being detected by searches that neglect eccentricity. However, we caution that we find significant prior dependence in our limits, suggesting that there is limited information in the signals. We note that other techniques used to constrain binary neutron star eccentricity without full parameter estimation may miss degeneracies in the waveform, and that for future signals, it will be important to perform full parameter estimation with accurate waveform templates.

scholarly journals Matched-filter study and energy budget suggest no detectable gravitational-wave ‘extended emission’ from GW170817

2019 ◽  
Vol 485 (1) ◽  
pp. 843-850 ◽  
Author(s):  
Miquel Oliver ◽  
David Keitel ◽  
Andrew L Miller ◽  
Hector Estelles ◽  
Alicia M Sintes
Keyword(s):  
Gravitational Wave ◽  
Energy Budget ◽  
Matched Filter ◽  
Extended Emission

Dynamic matched filter technique for gravitational wave detection from coalescing binary systems

2004 ◽  
Vol 21 (5) ◽  
pp. S807-S810 ◽  
Author(s):  
F Acernese ◽  
F Barone ◽  
R De Rosa ◽  
A Eleuteri ◽  
S Pardi ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Binary Systems ◽  
Matched Filter ◽  
Gravitational Wave Detection ◽  
Filter Technique ◽  
Wave Detection ◽  
Coalescing Binary Systems
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