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Shock-avoiding slicing conditions: tests and calibrations
Thomas W. Baumgarte, David Hilditch
While the 1+log slicing condition has been extremely successful in numerous numerical relativity simulations, it is also known to develop "gauge-shocks" in some examples. Alternati…
Bona-Massó slices of Reissner-Nordström spacetimes
Sean E. Li, Thomas W. Baumgarte, Kenneth A. Dennison +1
Motivated by recent numerical relativity simulations of charged black holes and their interactions, we explore the properties of common slicing conditions in Reissner-Nordström spa…
Bona-Masso slicing conditions and the lapse close to black-hole punctures
Thomas W. Baumgarte, Henrique P. de Oliveira
We consider several families of functions that appear in the Bona-Masso slicing condition for the lapse function . Focusing on spherically symmetric and time-independent…
Did a close tidal encounter cause the Great Dimming of Betelgeuse?
Hailey Aronson, Thomas W. Baumgarte, Stuart L. Shapiro
We assess whether gravity darkening, induced by a tidal interaction during a stellar fly-by, might be sufficient to explain the Great Dimming of Betelgeuse. Adopting several simple…