The Santa Barbara Binary Code Comparison

We have performed numerical calculations of a binary interacting with a gas disk, using eleven different numerical methods and a standard binary-disk setup.  The goal of this study is to determine whether all codes agree on a numerically converged solution, and to determine the necessary resolution for convergence and the number of binary orbits that must be computed to reach an agreed-upon relaxed state of the binary-disk system.

Title format: authorname_codename_resolution.dat

"resolution" was user-defined; some used the number of zones along a single dimension, others used number of particles.  Because it is difficult to directly compare resolutions, we did not attempt a uniform definition for resolution in the file names.

Data Format: ascii tables with columns including the following information

1   Time (in binary orbits, so be sure to divide by 2pi)2   Total Gravitational Torque (r x F_grav).3   Gravitational Torque outside r>a4   PsiR  (This and following column are obsolete and not mentioned in the paper)5   PsiI  (obsolete)6   (Eccentricity Vector)7    8   Mdot onto Primary9   Mdot onto Secondary