LISA Source Confusion
arXiv:gr-qc/0404129 · doi:10.1103/PhysRevD.70.082004
Abstract
The Laser Interferometer Space Antenna (LISA) will detect thousands of gravitational wave sources. Many of these sources will be overlapping in the sense that their signals will have a non-zero cross-correlation. Such overlaps lead to source confusion, which adversely affects how well we can extract information about the individual sources. Here we study how source confusion impacts parameter estimation for galactic compact binaries, with emphasis on the effects of the number of overlaping sources, the time of observation, the gravitational wave frequencies of the sources, and the degree of the signal correlations. Our main findings are that the parameter resolution decays exponentially with the number of overlapping sources, and super-exponentially with the degree of cross-correlation. We also find that an extended mission lifetime is key to disentangling the source confusion as the parameter resolution for overlapping sources improves much faster than the usual square root of the observation time.
8 pages, 14 figures
References in corpus (9)
- Gravitational Waves from Mergin Compact Binaries: How Accurately Can One Extract the Binary's Parameters from the Inspiral Waveform?
- LISA Capture Sources: Approximate Waveforms, Signal-to-Noise Ratios, and Parameter Estimation Accuracy
- Angular Resolution of the LISA Gravitational Wave Detector
- LISA observations of rapidly spinning massive black hole binary systems
- Untangling the merger history of massive black holes with LISA
- Forward Modeling of Space-borne Gravitational Wave Detectors
- Parameter estimation for Galactic binaries by LISA
- The Angular Resolution of Space-Based Gravitational Wave Detectors
- Effects of finite arm-length of LISA on analysis of gravitational waves from MBH binaries
Cited by in corpus (25)
- Beyond LISA: Exploring Future Gravitational Wave Missions
- Gravitational-wave emission from compact Galactic binaries
- Global Analysis of the Gravitational Wave Signal from Galactic Binaries
- Characterizing the Galactic Gravitational Wave Background with LISA
- A Solution to the Galactic Foreground Problem for LISA
- A Bayesian Approach to the Detection Problem in Gravitational Wave Astronomy
- Biases in parameter estimation from overlapping gravitational-wave signals in the third generation detector era
- Bayesian modeling of source confusion in LISA data
- Sensitivity and parameter-estimation precision for alternate LISA configurations
- Towards inference of overlapping gravitational wave signals
- Subtraction-noise projection in gravitational-wave detector networks
- Darwin Meets Einstein: LISA Data Analysis Using Genetic Algorithms
- Global analysis for the LISA gravitational wave observatory
- Impacts of overlapping gravitational-wave signals on the parameter estimation: Toward the search for cosmological backgrounds
- Confusion noise from Galactic binaries for Taiji
- A LISA Data-Analysis Primer
- Binary White Dwarfs as Laboratories for Extreme Gravity with LISA
- A fast search strategy for gravitational waves from low-mass X-ray binaries
- LISA source confusion: identification and characterization of signals
- Source Confusion from Neutron Star Binaries in Ground-Based Gravitational Wave Detectors is Minimal
- An implementation of Galactic white dwarf binary data analysis for MLDC-3.1
- Blind source separation in 3rd generation gravitational-wave detectors
- Test for LISA foreground Gaussianity and stationarity: galactic white-dwarf binaries
- Parameter estimation for space-based gravitational wave detectors with ringdown signals
- Source Confusion of Massive Black Hole Binaries for the Taiji Mission