AMR, adaptive mesh refinement Input / output format Binary star
Two stars in close orbit
A script that combines modules into a multi-physical simulator.
A computer program to solve or approximate the equations of state of
a physical domain. Codes are usually written in Fortran or C/C++.
For example ‘sse’ is a code to perform stellar evolution.
A single representation model for data of different physical codes.
Dense stellar systems Interstellar Medium
The matter between the stars in a galaxy.
Work out / develop the physical model equations. Usually, small steps
in time are taken, the new state of the system is calculated from the
Galaxy Star Core Star Envelope
Gravity Domain Hydrodynamics Star Stellar Evolution ZAMS, zero age main sequence
Start of the main sequence in the evolution of a star. Stable stage
after formation of the star from a collapsing gas cloud
A collection of identifyable locations or regions (for example a box
of interstellar medium with a density, molecular composition). Every
value in the collection can be seen as belongin to a specific
location (x,y,z point).
Generic name for an accumulation of gas, plasma and dust. A denser
region of the insterstellar medium
Main sequence star
A star that derives its energy from the conversion of hydrogen into
helium in its core.
Interface to a code in AMUSE. Also, file containing python definitions.
These definitions can be imported into the main Python program
A type of insterstellar cloud whose density and size permits the
formation of molecules,
A computational method used for simulating fluid flows
A region in space, time and objects (stars / gas clouds) that can be
described by a set of physical models. A physical domain is a
limited description of the physics of a stellar system. For example
in the gravity domain the gravitational forces are taken into
account but not the evolution of stars or the hydrodynamics of th
A code used for modelling stellar systems and described in published
During a run the physical models are evolved to a wanted end state.
A run can end when a certain model time has passed. For example, one
can run a script until the age is 12 million years.
A collection of identifyable objects (for example all stars in a
globular cluster). Every value in the set can be seen as belonging
to an object.
A group of stars. The mean distance between the stars in smaller
than the mean distance between stars in the galaxy disks. Two types
of star clusters exist: globular clusters, open clusters
Star cluster Metallicity
Proportion of star matter made up of chemical elements other than
hydrogen and helium.
An identifiable stage in a run or evolve. A code can take multiple
steps during one evolve step. A step can be the integrator step,
force calculation step.
A code with limited accurancy but that is easy to use.
Automatic test case for a part of the code. For example one can
define a unit tests that checks the result of one method given a