TY - JOUR
T1 - Black Hole Spectroscopy with Coherent Mode Stacking
AU - Yang, Huan
AU - Yagi, Kent
AU - Blackman, Jonathan
AU - Lehner, Luis
AU - Paschalidis, Vasileios
AU - Pretorius, Frans
AU - Yunes, Nicolás
N1 - Publisher Copyright:
© 2017 American Physical Society.
PY - 2017/4/20
Y1 - 2017/4/20
N2 - The measurement of multiple ringdown modes in gravitational waves from binary black hole mergers will allow for testing the fundamental properties of black holes in general relativity and to constrain modified theories of gravity. To enhance the ability of Advanced LIGO/Virgo to perform such tasks, we propose a coherent mode stacking method to search for a chosen target mode within a collection of multiple merger events. We first rescale each signal so that the target mode in each of them has the same frequency and then sum the waveforms constructively. A crucial element to realize this coherent superposition is to make use of a priori information extracted from the inspiral-merger phase of each event. To illustrate the method, we perform a study with simulated events targeting the m=3 ringdown mode of the remnant black holes. We show that this method can significantly boost the signal-to-noise ratio of the collective target mode compared to that of the single loudest event. Using current estimates of merger rates, we show that it is likely that advanced-era detectors can measure this collective ringdown mode with one year of coincident data gathered at design sensitivity.
AB - The measurement of multiple ringdown modes in gravitational waves from binary black hole mergers will allow for testing the fundamental properties of black holes in general relativity and to constrain modified theories of gravity. To enhance the ability of Advanced LIGO/Virgo to perform such tasks, we propose a coherent mode stacking method to search for a chosen target mode within a collection of multiple merger events. We first rescale each signal so that the target mode in each of them has the same frequency and then sum the waveforms constructively. A crucial element to realize this coherent superposition is to make use of a priori information extracted from the inspiral-merger phase of each event. To illustrate the method, we perform a study with simulated events targeting the m=3 ringdown mode of the remnant black holes. We show that this method can significantly boost the signal-to-noise ratio of the collective target mode compared to that of the single loudest event. Using current estimates of merger rates, we show that it is likely that advanced-era detectors can measure this collective ringdown mode with one year of coincident data gathered at design sensitivity.
UR - http://www.scopus.com/inward/record.url?scp=85018518389&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85018518389&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.118.161101
DO - 10.1103/PhysRevLett.118.161101
M3 - Article
C2 - 28474911
AN - SCOPUS:85018518389
SN - 0031-9007
VL - 118
JO - Physical review letters
JF - Physical review letters
IS - 16
M1 - 161101
ER -