activity
19972023
most citedExtreme Ultraviolet Emission from Clusters of Galaxies: Inverse Compton Radiation from a Relic Population of Cosmic Ray Electrons?

101 citations · 826 across the 67 of their papers we have counts for

collaborators

68 papers

astro-ph.CO2023★ 1 cited

Scale invariant curvature perturbations from a spontaneously decaying scalar field

Richard Lieu, Chun-Hui Shi

The evolution of superhorizon curvature perturbations in a two-component interacting universe is considered. It is found that adiabatic modes conserve the total curvature perturbat…

astro-ph.HE2023

A Model of EUV Emission from Clusters of Galaxies

Richard Lieu, Chun-Hui Shi

With tantalizing evidence of the recent e-Rosita mission, re-discovering very soft X-rays and EUV radiation from a cluster of galaxies or its environment, the question of the origi…

gr-qc2022★ 5 cited

Damping of long wavelength gravitational waves by the intergalactic medium

Richard Lieu, Kristen Lackeos, Bing Zhang

The problem of radiation by the charged particles of the intergalactic medium (IGM) when a passing gravitational wave (GW) accelerate them is investigated. The largest acceleration…

astro-ph.GA2021★ 3 cited

Galactic Orbital Effects on Pulsar Timing

Kiley Heflin, Richard Lieu

In the currently accepted paradigm, dark matter is hypothesized as an explanation of the flat rotation curves of galaxies under the assumption of virialized orbits. The use of mill…

astro-ph.IM2020★ 2 cited

A method of enhancing the detection sensitivity of transient sources in time series with Gaussian stationary noise

Richard Lieu, Kristen Lackeos

The Gaussian phase noise of intensity time series is demonstrated to be drastically reduced when the raw voltage data are digitally filtered through an arbitrarily large number …

astro-ph.HE2017★ 11 cited

Exclusion of standard gravitons by LIGO observation

Richard Lieu

Dyson (2013) argued that the extraordinarily large number of gravitons in a gravitational wave makes them impossible to be resolved as individual particles. While true, it is shown…