Capability for detection of GW190521-like binary black holes with TianQin

Liu, Shuai; Zhu, Liang-Gui; Hu, Y. M.; Zhang, Jian-dong; Ji, Mu-Jie

doi:10.1103/physrevd.105.023019

Cited by 18 publications

(9 citation statements)

References 125 publications

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“…For some science cases studies for LISA [13,33] and TianQin [8,35], non had adopted TDI, since it does not significantly alter signal to noise ratio (SNR) while greatly complicates the calculations. However, in reality, since the laser phase noise can be orders of magnitude higher than the GW signals, one has to rely on the TDI combination of channels to cancel out the laser phase noise [71][72][73][74].…”

Section: B Detector Responsementioning

confidence: 99%

“…Moreover, TianQin is expected to observe the EMRIs [5], providing opportunities to test General Relativity through their GW characteristics. The researches [8,35] based on TianQin, have demonstrated its ability to detect sBBH system and precisely estimate the source parameters. The SGWB consists of a multitude of GW signals, the research [7] has shown that TianQin can place constraints on the source parameters of the SGWB.…”

Section: Tianqin Missionmentioning

confidence: 99%

“…This level of precision in time and space enables the EM and ground-based detectors' follow-up observation. Furthermore, TianQin has also shown similar capabilities in PE, with joint observation allowing for significant improvements in coalescence time, sky localization, and chirp mass [8,35]. As an ideal type of multi-band source, a precise estimation of the sky location of sBBH system could also enable us to constrain the Hubble constant [36,37], with even better precision achievable through joint observations [38].…”

Section: Introductionmentioning

confidence: 99%

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Science with the TianQin observatory: Preliminary results on stellar-mass binary black holes

Liu

Zhang

et al. 2020

Phys. Rev. D

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We present a Bayesian parameter estimation progress to infer the stellar mass binary black hole properties by TianQin, LISA, and TianQin+LISA. Two typical Stellar-mass Black Hole Binary systems, GW150914 and GW190521 are chosen as the fiducial sources. In this work, we establish the ability of TianQin to infer the parameters of those systems and first apply the full frequency response in TianQin's data analysis. We obtain the parameter estimation results and explain the correlation between them. We also find the TianQin+LISA could marginally increase the parameter estimation precision and narrow the 1σ area compared with TianQin and LISA individual observations. We finally demonstrate the importance of considering the effect of spin when the binaries have a nonzero component spin and great derivation will appear especially on mass, coalescence time and sky location.

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Section: B Detector Responsementioning

confidence: 99%

Section: Tianqin Missionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Science with the TianQin observatory: Preliminary results on stellar-mass binary black holes

Liu

Zhang

et al. 2020

Phys. Rev. D

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“…TianQin is a space-based GW detector targeting GWs in the frequency band 10 −4 Hz∼ 1 Hz [61,62]. Among the promising scientific discovery potential of TianQin in many different directions [63][64][65][66][67][68][69][70][71][72], the detection of MBHBs is an outstanding one [73,74]. Motivated by the known result on LISA, it is likely that TianQin can also detect memory effect directly.…”

Section: Introductionmentioning

confidence: 99%

Detecting the gravitational wave memory effect with TianQin

Sun¹,

Shi²,

Zhang³

et al. 2022

Preprint

Self Cite

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The gravitational wave memory effect is a direct prediction of general relativity. The presence of memory effect in gravitational wave signals not only provides the chance to test an important aspect of general relativity, but also represents a potentially non-negligible contribution to the waveform for certain gravitational wave events. In this paper, we study the prospect of directly detecting the gravitational wave memory effect with the planned space-based gravitational wave detector -TianQin. We also determine the region of parameter space in which the contribution of memory effect is significant to waveform modeling.

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“…Indeed, we have a good lead on a potential anisotropy, namely a strong candidate direction, which can be tested by any emerging cosmological probe [42], provided data quality is sufficient. Arguably, one of the most exciting prospects are gravitational waves (GWs) [43], since one can bypass the distance ladder on the assumption that General Relativity is correct and there is no shortage of promising forecasts and timelines for GW determinations of H 0 [44,45,46,47,48,49,50,51,52,53,54]. These forecasts of course assume an FLRW Universe.…”

Section: Introductionmentioning

confidence: 99%

Probing the Anisotropic Universe with Gravitational Waves

Colgáin¹

2022

Preprint

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Modern cosmology rests on the working assumption that the Universe is isotropic and homogeneous at large scales. Here, we document a number of anomalous observations pointing to an anisotropic Universe in a direction consistent with the CMB dipole. If physical, this should be confirmed by any cosmological probe with sufficient data quality. To that end, we perform the first hemispherical decomposition of bright and dark standard siren H 0 determinations, finding that the maximum of the H 0 posterior is larger in the CMB dipole direction for dark sirens, but including the bright siren posterior reverses this conclusion. As may be expected, the limited number of GW observations is consistent with an isotropic Universe, but this can change going forward. It is imperative to repeat these tests as GW sources become more numerous and better localised.

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Capability for detection of GW190521-like binary black holes with TianQin

Cited by 18 publications

References 125 publications

Science with the TianQin observatory: Preliminary results on stellar-mass binary black holes

Science with the TianQin observatory: Preliminary results on stellar-mass binary black holes

Detecting the gravitational wave memory effect with TianQin

Probing the Anisotropic Universe with Gravitational Waves

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