66 citations · 231 across the 12 of their papers we have counts for
12 papers
A Fast Bayesian Method for Coherent Gravitational Wave Searches with Relative Astrometry
Benjamin Zhang, Kris Pardo, Yijun Wang +3
Using relative stellar astrometry for the detection of coherent gravitational wave sources is a promising method for the microhertz range, where no dedicated detectors currently ex…
Tolerance to Astrophysical Model Uncertainty in Dark Siren Hubble Measurement with Third-generation Gravitational-wave Detectors
Yijun Wang, Yanbei Chen
Gravitational-wave (GW) events can serve as standard sirens for cosmology, as the luminosity distance to source can be directly measured from the waveform amplitude. Specifically,…
Gravitational Wave Detection with Relative Astrometry using Roman's Galactic Bulge Time Domain Survey
Kris Pardo, Tzu-Ching Chang, Olivier Doré +1
Gravitational waves (GWs) are a new avenue of observing our Universe. So far, we have seen them in the ~10-100 Hz range, and there are hints that we might soon detect them in the n…
Uncertainty and bias of cosmology and astrophysical population model from statistical dark sirens
Hang Yu, Brian Seymour, Yijun Wang +1
Gravitational-wave (GW) radiation from a coalescing compact binary is a standard siren as the luminosity distance of each event can be directly measured from the amplitude of the s…
Constraining the Stochastic Gravitational Wave Background with Photometric Surveys
Yijun Wang, Kris Pardo, Tzu-Ching Chang +1
The detection of the Stochastic Gravitational Wave Background (SGWB) is essential for understanding black hole populations, especially for supermassive black hole binaries. The rec…
Transient obscuration event captured in NGC 3227 III. Photoionization modeling of the X-ray obscuration event in 2019
Junjie Mao, J. S. Kaastra, M. Mehdipour +16
A growing number of transient X-ray obscuration events in type I AGN suggest that our line-of-sight to the central engine is not always free. Multiple X-ray obscuration events have…
Transient obscuration event captured in NGC~3227 II. Warm absorbers and obscuration events in archival XMM-Newton and NuSTAR observations
Yijun Wang, Jelle Kaastra, Missagh Mehdipour +18
The relation between warm absorber (WA) outflows of AGN and nuclear obscuration activities caused by optically-thick clouds (obscurers) crossing the line of sight is unclear. NGC 3…
Detecting gravitational lensing in hierarchical triples in galactic nuclei with space-borne gravitational-wave observatories
Hang Yu, Yijun Wang, Brian Seymour +1
Stellar-mass binary black holes (BBHs) may merge in the vicinity of a supermassive black hole (SMBH). It is suggested that the gravitational-wave (GW) emitted by a BBH has a high p…
Identifying Type II Strongly Lensed Gravitational-Wave Images in Third-Generation Gravitational-Wave Detectors
Yijun Wang, Rico K. L. Lo, Alvin K. Y. Li +1
Strong gravitational lensing is a gravitational wave (GW) propagation effect that influences the inferred GW source parameters and the cosmological environment. Identifying strongl…
Gravitational Wave Detection with Photometric Surveys
Yijun Wang, Kris Pardo, Tzu-Ching Chang +1
Gravitational wave (GW) detections have enriched our understanding of the universe. To date, all single-source GW events were found by interferometer-type detectors. We study a det…
X-ray spectral variations of synchrotron peak in BL Lacs
Yijun Wang, Shifu Zhu, Yongquan Xue +3
The spectral energy distribution of blazars around the synchrotron peak can be well described by the log-parabolic model that has three parameters: peak energy (), pe…
Systematic investigation of X-ray spectral variability of TeV blazars during flares in the era
Yijun Wang, Yongquan Xue, Shifu Zhu +1
Utilizing all the 16-year observations, we analyze the X-ray spectra of 32 TeV blazars, and perform a systematic investigation of X-ray spectral variability for the 5 bright…