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Hydrodynamical simulations of helium-ignited binary white dwarf mergers
Vrutant Mehta, Vishal Tiwari, Ruediger Pakmor +2
Type Ia supernovae (SNe Ia) are common luminous astrophysical transients. SNe Ia serve as distance indicators for measuring the expansion rate of the universe and play important ro…
From cosmological simulations to binary black hole mergers: The impact of using analytical star formation history models on gravitational-wave source populations
Sasha Levina, Floor Broekgaarden, Lieke van Son +4
Observations of binary black hole (BBH) mergers provide a unique window into the lives of massive stars across cosmic time. Connecting redshift-dependent merger properties to massi…
NLTE spectral modelling for a carbon-oxygen and helium white-dwarf merger as a Ca-rich transient candidate
F. P. Callan, A. Holas, J. Morán-Fraile +7
We carry out NLTE (non local thermodynamic equilibrium) radiative transfer simulations to determine whether explosion during the merger of a carbon-oxygen (CO) white dwarf (WD) wit…
The origin of hypervelocity white dwarfs in the merger-disruption of He-CO white dwarfs
Hila Glanz, Hagai B. Perets, Aakash Bhat +1
Hypervelocity white dwarfs (HVWDs) are stellar remnants moving at speeds exceeding the Milky Way's escape velocity. The origins of the fastest HVWDs are enigmatic, with proposed fo…
Expected insights on type Ia supernovae from LISA's gravitational wave observations
Valeriya Korol, Riccardo Buscicchio, Ruediger Pakmor +3
The nature of progenitors of Type Ia supernovae has long been debated, primarily due to the elusiveness of the progenitor systems to traditional electromagnetic observation methods…
Self-consistent MHD simulation of jet launching in a neutron star - white dwarf merger
J. Moran-Fraile, F. K. Roepke, R. Pakmor +4
The merger of a white dwarf (WD) and a neutron star (NS) is a relatively common event that will produce an observable electromagnetic signal. Furthermore, the compactness of these…