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Exact shering box solutions of MHD flows with resistivity, viscosity and cooling
P. Lesaffre, S. A. Balbus
Axisymmetric incompressible modes of the magneto-rotational instability (MRI) with a vertical wavenumber are exact solutions of the non-linear local equations of motion for a disk…
Time-dependent analytic solutions of quasi-steady shocks with cooling
P. Lesaffre
I present time-dependent analytical solutions of quasi-steady shocks with cooling, where quasi-steady shocks are objects composed of truncated steady-state models of shocks at any…
Effects of turbulent diffusion on the chemistry of diffuse clouds
P. Lesaffre, M. Gerin, P. Hennebelle
Aims. We probe the effect of turbulent diffusion on the chemistry at the interface between a cold neutral medium (CNM) cloudlet and the warm neutral medium (WNM). Methods. We perfo…
Critical Mass Transfer in Double-Degenerate Type Ia Supernovae
Rebecca G. Martin, Christopher A. Tout, Pierre Lesaffre
Doubly-degenerate binary systems consisting of two white dwarfs both composed of carbon and oxygen and close enough that mass is transferred from the less massive to the more massi…
Cosmological Implications of the Second Parameter of Type Ia Supernovae
Philipp Podsiadlowski, Paolo A. Mazzali, Pierre Lesaffre +2
Theoretical models predict that the initial metallicity of the progenitor of a Type Ia supernova (SN Ia) affects the peak of the supernova light curve. This can cause a deviation f…
The C-flash and the ignition conditions of type Ia supernovae
P. Lesaffre, Z. Han, C. A. Tout +2
Thanks to a stellar evolution code able to compute through the C-flash we link the binary population synthesis of single degenerate progenitors of type Ia supernovae (SNe Ia) to th…