5 citations · 15 across the 9 of their papers we have counts for
4 papers · 1 filter
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…