Nuclear Reaction Networks


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Contact: F.X.Timmes
my one page vitae,
full vitae,
research statement, and
teaching statement.

Before using these thermonuclear reaction networks you should probably glance at my method of madness, Raph Hix's & Brad Meyer's excellent article, Brad Meyer's annual review article, George Wallerstein's review of modern physics article, and my 2009 National Nuclear Physics Summer School lectures on reaction networks.

There is a certain irremovable complexity associated with stiff systems of ordinary differential equations when the right hand side is a complicated function, the Jacobian matrix is sparse, and you want to do a high quality integration. The routines below use an analytical Jacobian, a variable-order Bader-Deuflhard integration method, and MA28 sparse linear algebra. These reaction networks are not toys; they are a snapshot of my research tools.

In these instruments, the reaction network and thermodynamics are integrated simultaneously. That is, they are fully coupled. At present, one-step, hydrostatic, adiabatic expansion, self-heating at constant density, self-heating through constant pressure, detonation, and arbitrary thermodynamic histories are supported.

If you want to put these reaction networks in a hydrodynamics code and/or you want the networks to execute as efficiently as possible, send a message to me.

Make H & He

* Big Bang
Burn hydrogen

* pp chains

* cno cycles

* pp + cno

* hotcno + rp

* pp+hotcno+rp

* 8 isotopes

* 7 isotopes

* 13 isotopes

* 19 isotopes

* 21 isotopes

* Full H + He

Eat neutrons

* s-process
General network

* torch


Please cite the relevant references if you publish a piece of work that use these codes, pieces of these codes, or modified versions of them. Offer co-authorship as appropriate.