MESA-Web Nuclear Reaction Networks

A nuclear reaction network ('net' for short) is defined by a set of isotopes and a set of reactions linking these isotopes. Below is a table of the nets currently available for use with MESA-Web, a list of the isotopes they contain, and examples of their use in different stellar evolution scenarios:

Net name	Isotopes	Uses
agb	n, ^1-2H, ^3,4He, ⁷Li, ⁷Be, ⁸B,^12,13C,^13-15N,^16-18O, ¹⁹F	Evolved low-mass stars
approx21	n, p, ¹H, ⁴He, ¹²C, ¹⁴N, ¹⁶O, ²⁰Ne, ²⁴Mg, ²⁸Si, ³²S, ³⁶Ar, ⁴⁰Ca, ⁴⁴Ti, ⁴⁸Cr, ^52,54,56Fe, ⁵⁶Ni	Evolved massive stars
basic	¹H, ³He, ⁴He, ¹²C, ¹⁴N, ¹⁶O, ²⁰Ne, ²⁴Mg	General H/He burning
co_burn	basic + ²⁸Si	General H/He/C/O burning
h_burn	n, ^1,2H, ^3,4He, ^6,7Li, ^7,9,10Be, ^8,10,11B, ^12,13C, ^13-15N, ^14-18O, ^17-19F, ^18-22Ne, ^21-23Na, ^22-26Mg, ^25-27Al, ^27,28Si	Detailed H burning
mesa_49	n, ^1,2H, ^3,4He, ⁷Li, ^7,9,10Be, ⁸B, ^12,13C, ^13-15N, ^14-18O, ^17-19F, ^18-22Ne, ^21-24Na, ^23-26Mg, ^25-27Al, ^27-30Si, ^30,31P, ^31-34S	Detailed H/He burning
sagb_NeNa_MgAl	n, ^1,2H, ^3,4He, ⁷Li, ⁷Be, ⁸B, ^12,13C, ^13-15N, ^16-18O, ¹⁹F, ^20-22Ne, ^21-23Na, ^24-26Mg, ^25-27Al	Evolved intermediate-mass stars

More-detailed descriptions of these nets are provided by the mesa/data/net_data/nets/README.rst file supplied with MESA.

Updated 2021-08-02 15:55:47