Extreme-mass-ratio burst detection with TianQin

Abstract

The capture of compact objects by massive black holes in galaxies or dwarf galaxies will generate short gravitational wave signals, called extreme-mass-ratio bursts (EMRBs), before evolving into extreme-mass-ratio inspirals. Their detection will provide an investigation of the black hole properties and shed light on astronomy and astrophysics. In this work, we investigate the detection number of the TianQin observatory on EMRBs. Our result shows that TianQin can detect tens of EMRBs events during its mission lifetime. For those detected events, we use the Fisher information matrix to quantify these uncertainties in the inference of their parameters. We consider the possible network of TianQin+LISA and study how a network can improve parameter estimation. The result shows that, for most sources, the CO mass, the MBH mass, and the MBH spin can be determined with an accuracy of the order $10^{-1}$ and the sky localization can be determined with an accuracy of 10 square degrees. We further explore the gravitational wave background generated by those unsolved EMRBs and conclude that it is about $10^6$ times weaker than TianQin's sensitivity and thus it can be ignored.

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Cited by in corpus (15)

• Probing astrophysical environment with eccentric extreme mass-ratio inspirals
• Gravitational Wave Astronomy With TianQin
• Analytical models of supermassive black holes in galaxies surrounded by dark matter halos
• Detection of astrophysical gravitational wave sources by TianQin and LISA
• Testing general relativity with TianQin: the prospect of using the inspiral signals of black hole binaries
• Identification of Gravitational-waves from Extreme Mass Ratio Inspirals
• Parameter Estimation for Stellar-Origin Black Hole Mergers In LISA
• Improving the Cosmological Constraints by Inferring the Formation Channel of Extreme-mass-ratio Inspirals
• Premerger detection of massive black hole binaries using deep learning
• Distinctive GWBs from eccentric inspiraling SMBH binaries with a DM spike
• Searching for gravitational-wave bursts with space-borne detectors
• Gravitational Wave Peeps from EMRIs and their Implication for LISA Signal Confusion Noise
• Probing the Spin-Induced Quadrupole Moment of Massive Black Holes with the Inspiral of Binary Black Holes
• Post-adiabatic waveforms from extreme mass ratio inspirals in the presence of dark matter
• Gravitational Wave Peep Contributions to Background Signal Confusion Noise for LISA