A5072110404- Pulsars and Gravitational Waves Research
- Gamma-ray bursts and supernovae
- Radio Astronomy Observations and Technology
- Cosmology and Gravitation Theories
- Astrophysical Phenomena and Observations
- Astrophysics and Cosmic Phenomena
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Statistical and numerical algorithms
- Geophysics and Sensor Technology
- Advanced Battery Technologies Research
- Black Holes and Theoretical Physics
- Extraction and Separation Processes
- Astronomical Observations and Instrumentation
University of Chinese Academy of Sciences
2020-2024
Institute of Theoretical Physics
2020-2023
Chinese Academy of Sciences
2020-2023
We review potential low-frequency gravitational-wave sources, which are expected to be detected by Taiji, a Chinese space-based detector, estimate the detection rates of these sources and present parameter estimation massive black hole binaries.
Abstract In this perspective, we outline that a space borne gravitational wave detector network combining LISA and Taiji can be used to measure the Hubble constant with an uncertainty less than 0.5% in ten years, compared of ground based detectors which within 2% next five years by standard siren method. is Chinese detection mission planned for launch early 2030 s. The pilot satellite Taiji-1 has been launched August 2019 verify feasibility Taiji. results few technologies tested on are...
The coalescences of massive black hole binaries are one the main targets space-based gravitational wave observatories. Such sources expected to be accompanied by electromagnetic emissions. Low latency detection mergers provides a start point for global-fit analysis explore large parameter space signals simultaneously being present in data but at great computational cost. To alleviate this issue, we deep learning method rapidly searching data. Our model is capable processing year data,...
Gravitational waves (GWs) from tens of millions compact binaries in our Milky Way enter the milli-Hertz band space-based detection. The majority them cannot be resolved individually, resulting a foreground confusion noise for Laser Interferometer Space Antenna (LISA). concept Taiji mission is similar to LISA's with slightly better sensitivity, which means that galactic GW signals will also affect detection Taiji. Here we generate 29.8 million and subtract `resolvable' sources. estimated...
We explore a potential LISA-Taiji network to fast and accurately localize the coalescing massive black hole binaries. For an equal-mass binary located at redshift of 1 with total intrinsic mass <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mn>1</mml:mn> <mml:msup> <mml:mrow> <mml:mn>0</mml:mn> </mml:mrow> <mml:mn>5</mml:mn> </mml:msup> <mml:msub> <mml:mi>M</mml:mi> <mml:mo>⊙</mml:mo> </mml:msub> </mml:math> , may achieve almost four orders magnitude...
The Hubble parameter is one of the central parameters in modern cosmology, which describes present expansion rate universe. Their values inferred from late-time observations are systematically higher than those early-time measurements by about $10\%$. To come to a robust conclusion, independent probes with accuracy at percent levels crucial. Gravitational waves compact binary coalescence events can be formulated into standard siren approach provide an measurement. future space-borne...
Abstract Extending the electromagnetic and gravitational radiations from binary black holes with electric magnetic charges in circular orbits Liu et al. (Phys. Rev. D 102:103520, 2020), we calculate total emission rates of energy angular momentum due to dyonic precessing elliptical orbits. It is shown that have same dependence on conic angle for different Moreover, obtain evolutions find a orbit remains while an elliptic becomes quasi-circular radiations. Using evolution orbits, derive...
Coalescing massive black hole binaries (MBHBs) are one of primary sources for space-based gravitational wave (GW) observations. The mergers these expected to give rise detectable electromagnetic (EM) emissions with a narrow time window. premerger detection GW signals is vital follow-up EM conventional approach searching involves high computational costs. In this study, we present deep learning model search from MBHBs. Our able process 4.7 days simulated data within 0.01 seconds and detect...
Space-based gravitational-wave detectors consist of a triangle three spacecraft, which makes it possible to detect polarization modes gravitational waves due the motion in space. In this paper we explore ability Taiji parametrized post-Einsteinian framework. Assuming massive black hole binaries with total mass $M=4\times10^5\,M_{\odot}$ at redshift $z=1$, find that can measure dipole and quadruple emission ($\Delta\alpha_D/\alpha_D$ $\Delta\alpha_Q/\alpha_Q$) accuracy up $\sim 0.04\%$,...
Coalescing massive black hole binaries (MBHBs) are one of primary sources for space-based gravitational wave (GW) observations. The mergers these expected to give rise detectable electromagnetic (EM) emissions with a narrow time window. premerger detection GW signals is vital follow-up EM conventional approach searching involves high computational costs. In this study, we present deep learning model search from MBHBs. Our able process 4.7 days simulated data within 0.01 seconds and detect...
In the 2030s, a new era of gravitational wave (GW) observations will dawn as multiple space-based GW detectors, such Laser Interferometer Space Antenna, Taiji, and TianQin, open millihertz window for astronomy. These detectors are poised to detect multitude signals emitted by different sources. It is challenging task data analysis recover parameters these sources at low computational cost. Generally, matched filtering approach entails exploring an extensive parameter space all resolvable...
In the 2030s, a new era of gravitational-wave (GW) observations will dawn as multiple space-based GW detectors, such Laser Interferometer Space Antenna, Taiji and TianQin, open millihertz window for astronomy. These detectors are poised to detect multitude signals emitted by different sources. It is challenging task data analysis recover parameters these sources at low computational cost. Generally, matched filtering approach entails exploring an extensive parameter space all resolvable...
The coalescences of massive black hole binaries are one the main targets space-based gravitational wave observatories. Such sources expected to be accompanied by electromagnetic emissions. Low latency detection mergers provides a start point for global-fit analysis explore large parameter space signals simultaneously being present in data but at great computational cost. To alleviate this issue, we deep learning method rapidly searching data. Our model is capable processing year data,...