212 citations · 1.1k across the 15 of their papers we have counts for
11 papers · 1 filter
The effect of binding energy and resolution in simulations of the common envelope binary interaction
Roberto Iaconi, Orsola De Marco, Jean-Claude Passy +1
The common envelope binary interaction remains one of the least understood phases in the evolution of compact binaries, including those that result in Type Ia supernovae and in mer…
Common envelope light-curves - I. grid-code module calibration
Pablo Galaviz, Orsola De Marco, Jean-Claude Passy +2
The common envelope binary interaction occurs when a star transfers mass onto a companion that cannot fully accrete it. The interaction can lead to a merger of the two objects or t…
The effect of a wider initial separation on common envelope binary interaction simulations
Roberto Iaconi, Thomas Reichardt, Jan Staff +5
We present hydrodynamic simulations of the common envelope binary interaction between a giant star and a compact companion carried out with the adaptive mesh refinement code ENZO a…
Hydrodynamic Simulations of the Interaction between Giant Stars and Planets
Jan E. Staff, Orsola De Marco, Peter Wood +2
We present the results of hydrodynamic simulations of the interaction between a 10 Jupiter mass planet and a red or asymptotic giant branch stars, both with a zero-age main sequenc…
Hydrodynamic Simulations of the Interaction between an AGB Star and a Main Sequence Companion in Eccentric Orbits
Jan E. Staff, Orsola De Marco, Daniel Macdonald +4
The Rotten Egg Nebula has at its core a binary composed of a Mira star and an A-type companion at a separation >10 au. It has been hypothesized to have formed by strong binary inte…
The binary fraction of planetary nebula central stars I. A high-precision, I-band excess search
Orsola De Marco, Jean-Claude Passy, D. J. Frew +2
In an attempt to determine how many planetary nebulae derive from binary interactions, we have started a project to measure their unbiased binary fraction. This number, when compar…
On the survival of brown dwarfs and planets engulfed by their giant host star
Jean-Claude Passy, Mordecai-Mark Mac Low, Orsola De Marco
The recent discovery of two Earth-mass planets in close orbits around an evolved star has raised questions as to whether substellar companions can survive encounters with their hos…
The Response of Giant Stars To Dynamical-Timescale Mass Loss
Jean-Claude Passy, Falk Herwig, Bill Paxton
We study the response of giant stars to mass loss. One-dimensional simulations of red and asymptotic giant branch stars with mass loss rates from up to a few \msun/yr sho…
Estimating the binary fraction of planetary nebulae central stars
D. Douchin, O. De Marco, D. J. Frew +10
During the past 20 years, the idea that non-spherical planetary nebulae (PN) may need a binary or planetary interaction to be shaped was discussed by various authors. It is now gen…
Simulating the Common Envelope Phase of a Red Giant Using SPH and Uniform Grid Codes
Jean-Claude Passy, Orsola De Marco, Chris L. Fryer +6
We use three-dimensional hydrodynamical simulations to study the rapid infall phase of the common envelope interaction of a red giant branch star of mass equal to 0.88 \msun and a…
On the alpha formalism for the common envelope interaction
Orsola De Marco, Jean-Claude Passy, Maxwell Moe +3
The α-formalism is a common way to parametrize the common envelope interaction between a giant star and a more compact companion. The α parameter describes the fraction of orbital…