activity
20062020
most citedThe Polar Regions of Cassiopeia A: The Aftermath of a Gamma Ray Burst?

53 citations · 125 across the 6 of their papers we have counts for

collaborators

5 papers

physics.ins-det2020★ 10 cited

On low-energy tail distortions in the detector responsefunction of x-ray microcalorimeter spectrometers

G. C. O'Neil, P. Szypryt, E. Takacs +12

We use narrow spectral lines from the x-ray spectra of various highlycharged ions to measure low-energy tail-like deviations from a Gaussian responsefunction in a microcalorimter x…

astro-ph.HE2019★ 12 cited

EBIT Observation of Ar Dielectronic Recombination Lines Near the Unknown Faint X-Ray Feature Found in the Stacked Spectrum of Galaxy Clusters

Amy C. Gall, Adam R. Foster, Roshani Silwal +7

Motivated by possible atomic origins of the unidentified emission line detected at 3.55 keV to 3.57 keV in a stacked spectrum of galaxy clusters (Bulbul et al. 2014), an electron b…

physics.atom-ph2018★ 21 cited

Measuring the Variation in Nuclear Charge Radius of Xe Isotopes by EUV Spectroscopy of Highly-Charged Na-like Ions

R. Silwal, A. Lapierre, J. D. Gillaspy +8

The variation in mean-square nuclear charge radius of xenon isotopes was measured utilizing a new method based on extreme ultraviolet spectroscopy of highly charged Na-like ions. T…

physics.atom-ph2014★ 19 cited

New x-ray measurements in Helium-like Atoms increase discrepancy between experiment and theoretical QED

Christopher T. Chantler, Andrew T. Payne, John D. Gillaspy +5

A recent 15 parts-per-million (ppm) experiment on muonic hydrogen found a major discrepancy with QED and independent nuclear size determinations. Here we find a significant discrep…

astro-ph2006★ 53 cited

The Polar Regions of Cassiopeia A: The Aftermath of a Gamma Ray Burst?

J. Martin Laming, Una Hwang, Balint Radics +2

Probably not, but it is interesting nevertheless to investigate just how close Cas A might have come to generating such an event. Focusing on the northeast jet filaments, we analyz…