5 citations · 15 across the 9 of their papers we have counts for
9 papers
Imaging without visibilities: FAST-Effelsberg scintillometry of PSR B1508+55
Tim Sprenger, Xun Shi, Olaf Wucknitz +1
Context. The spatially coherent multipath propagation of pulsar radiation leads to a temporal and spectral interference patterns called scintillation. It is caused by density varia…
Single-pulse-based interstellar scintillation studies of RRATs
Zi-wei Wu, Wei-wei Zhu, Zi-yao Fang +16
The nature of irregularly spaced pulses of rotating radio transients (RRATs) complicates interstellar scintillation studies. In this letter, we report the primary scintillation par…
Merger-Driven Turbulence and Coherent Transport in the Intracluster Medium
Yiwei Zhang, Xun Shi, Daisuke Nagai
The distribution of metals and temperature in the intracluster medium (ICM) provides key insights into galaxy cluster evolution, revealing information about chemical enrichment and…
Pulsar scattering as a probe for structures in the interstellar medium
Qiuyi He, Xun Shi, Guangxing Li
Due to the inhomogeneity of electron number density, radio waves emitted by pulsars undergo scattering as they pass through the interstellar medium (ISM). However, a connection bet…
Lensing point-spread function of coherent astrophysical sources and non-trivial wave effects
Xun Shi
Most research on astrophysical lensing has been conducted using the geometric optics framework, where there exists a clear concept of lensing images. However, wave optics effects c…
An Extreme Radio Fluctuation of Pulsar B192910
Zhengli Wang, Shunshun Cao, Jiguang Lu +7
We report the detection of an extreme flux decrease accompanied by clear dispersion measure (DM) and rotation measure (RM) variations for pulsar B1929+10 during the 110-minute radi…
Acquiring the Lefschetz thimbles: efficient evaluation of the diffraction integral for lensing in wave optics
Xun Shi
Evaluating the Kirchhoff-Fresnel diffraction integral is essential in studying wave effects in astrophysical lensing, but is often intractable because of the highly oscillatory int…
Stokes phenomena in lensing
Xun Shi
As lensing of coherent astrophysical sources e.g. pulsars, fast radio bursts, and gravitational waves becomes observationally relevant, the mathematical framework of Picard-Lefsche…
The Galactic distribution of pulsar scattering and the relation
Qiuyi He, Xun Shi
Interstellar radio wave scattering leads to flux density fluctuations and pulse broadening of pulsar signals. However, Galactic distribution and the structure of the scattering med…