317 citations · 1.3k across the 22 of their papers we have counts for
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3 papers · 1 filter
astro-ph.CO2019★ 18 cited
Black hole formation in relativistic Oscillaton collisions
James Y. Widdicombe, Thomas Helfer, Eugene A. Lim
We investigate the physics of black hole formation from the head-on collisions of boosted equal mass Oscillatons (OS) in full numerical relativity, for both the cases where the OS…
astro-ph.CO2018★ 47 cited
Formation of Relativistic Axion Stars
James Y. Widdicombe, Thomas Helfer, David J. E. Marsh +1
Axions and axion-like particles are compelling candidates for the missing dark matter of the universe. As they undergo gravitational collapse, they can form compact objects such as…
astro-ph.CO2016★ 124 cited
Black hole formation from axion stars
Thomas Helfer, David J. E. Marsh, Katy Clough +3
The classical equations of motion for an axion with potential possess quasi-stable, localized, oscillating solutions, which we refer to as "axion…