INTERACTIVE COSMOLOGICAL TOOLS
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Welcome to the Interactive Cosmological Tools. From this page onwards you will be able to customise the cosmological functions and quantities that you create.
If at any stage you require more flexibility than we have provided here you can download the iCosmo source code from here.
The step-by-step process begins here where you can choose the input cosmology that you wish to calculate your functions for, and the type of functions you want to make. By clicking on "Begin Calculations" you will be taken to the next step where you will see further options relavent to the choices made here.
We will always calculate the following functions for you:
Throughout the calculations we set the density due to spatial curvature to
impose a flat cosmology then the user should set the the parameter ΩDEto ΩDE=1-ΩM in the input.
You can choose to investigate one or two input cosmologies. Each input cosmology can be customised by filling in the boxes with the number you require. By default these care filled in with numbers roughly consistent with current constraints. The choice of Cosmology will affect all of the options choosen: base-line functions, observables and Fisher matrices.
If you wish to compare the base-line functions or the observables for two different cosmologies then select 2 cosmologies from the drop-down menu.
By choosing two cosmologies the default of the second cosmology is given a different value of the dark energy equation of state parameter w0. Note that when two cosmologies are choosen the Fisher matrices will be calculated assuming Cosmology 1. The choice of two cosmologies is to allow you to compare the effect of changing cosmlogical parameters on basic cosmological functions and observables.