14 papers
2D hydrodynamical simulations of Be star decretion disc formation through boundary layer effects
Madeline Overton, Zhaohuan Zhu, Rebecca G. Martin +1
Be stars are massive main-sequence stars rotating close to their breakup rate. They possess a decretion disc of material built up due to mass loss from the star, however, there is…
Positive superhumps in high mass ratio cataclysmic variables driven by apsidal disk precession
Rebecca G. Martin, Stephen H. Lubow, David Vallet +1
The paper uses 3D hydrodynamic simulations to show that cataclysmic variable disks can become eccentric and produce positive superhumps even when the 3:1 resonance lies outside the…
Relativistic Effects on Circumbinary Orbit Stability
Gonzalo C. de ElÃa, Macarena Zanardi, Rebecca G. Martin
With n-body simulations and analytic approximations we study the dynamics and stability of low eccentricity misaligned test particles around binary systems with varying mass fracti…
Negative superhumps in cataclysmic variables driven by retrograde apsidal disk precession
David Vallet, Rebecca G. Martin, Stephen H. Lubow +1
Negative superhumps are photometric modulations in cataclysmic variables with periods slightly shorter than the orbital period. They are usually attributed to retrograde nodal prec…
Formation of super-Earths around low-mass stars: evolution of an icy dead zone
Danilo A. Arturo Rodriguez, Rebecca G. Martin
Exoplanet observations show that close-in super-Earths are more common around M-dwarfs than around solar mass stars. Since the snow line in a protoplanetary disc plays a crucial ro…
Primordial planet spin driven by boundary layer effects in a decretion disc
Rebecca G. Martin, Stephen H. Lubow, David Vallet +4
Accretion of material from a protoplanetary disc on to a forming giant planet can spin the planet up to close to its breakup rate, , where $M_…