11 citations · 17 across the 9 of their papers we have counts for
10 papers
Ce II-IV emission in kilonovae with R-matrix collision strengths and distorted wave recombination rates
Leo Patrick Mulholland, Niamh Ferguson, Luke J. Shingles +3
We provide transition probabilities and Maxwellian-averaged collision-strengths for the electron-impact excitation of Ce {\sc ii} - {\sc iv}. These ions are potentially abundant in…
Late-time emission-line profiles from kilonova models
S. A. Sim, O. Just, Z. Xiong +10
Numerical simulations suggest that neutron star mergers eject material with complex, non-spherical density and composition distributions. Here we use two-dimensional configurations…
Exploring the diversity of kilonovae with 3D radiative transfer I. The polar direction
Christine E. Collins, Luke J. Shingles, Vimal Vijayan +7
We present 3D kilonova radiative transfer simulations for a series of binary neutron star merger models. The masses of the neutron stars are varied as well as the total mass of the…
Strontium and helium in the kilonova AT2017gfo: Origin of the 1μm feature constrained via NLTE calculations
Aayush Arya, Rasmus Damgaard, Albert Sneppen +4
Mergers of neutron stars are believed to be one of the primary sites for the synthesis of the universe's heavy elements via the rapid neutron capture process. AT2017gfo, the kilono…
Electron impact excitation of Te IV and V and Level Resolved R-matrix Photoionization of Te I - IV with application to modelling of AT2017gfo
Leo P. Mulholland, Catherine A. Ramsbottom, Connor P. Ballance +2
Spectral modelling of kilonovae (KNe) require large amounts of collisional excitation and photoionization atomic data for lowly ionised (neutral, singly and doubly ionised) species…
Electron-Impact Excitation of Zirconium I-III in support of Neutron Star Merger Diagnostics
M. McCann, C. P. Ballance, F. McNeill +2
Recent observation and analysis of kilonovae (KNe) spectra as a result of neutron star mergers require accurate and complete atomic structure and collisional data for interpretatio…
On the use of the Axelrod formula for thermal electron collisions in Astrophysical Modelling
Leo P. Mulholland, Steven J. Bromley, Connor P. Ballance +2
The Axelrod approximation is widely used in astrophysical modelling codes to evaluate electron-impact excitation effective collision strengths for forbidden transitions. Approximat…
Luminosity predictions for the first three ionisation stages of W, Pt and Au to probe potential sources of emission in kilonova
M. McCann, L. P. Mulholland, Z. Xiong +7
A large number of R-matrix calculations of electron impact excitation for heavy elements (Z > 70) have been performed in recent years for applications in fusion and astrophysics re…
Collisional and Radiative Data for Tellurium ions in Kilonovae modelling and Laboratory Benchmarks
Leo Patrick Mulholland, Fiona McNeill, Stuart A. Sim +2
Tellurium is a primary candidate for the identification of the 2.1 m emission line in kilonovae (KNe) spectra AT2017gfo and GRB230307A. Despite this, there is currently an insuf…
New Radiative and Collisional Atomic Data for Sr {\sc ii} and Y {\sc ii} with application to Kilonova modelling
Leo Mulholland, Niall McElroy, Fiona McNeill +3
The spectra of singly ionised Strontium and Yttrium (Sr {\sc ii} and Y {\sc ii}) have been proposed as identifications of certain spectral features in the AT2017gfo spectrum. With…