diff --git a/docs/dev/_images/nova.png b/docs/dev/_images/nova.png index a9fbc5984..d8e313962 100644 Binary files a/docs/dev/_images/nova.png and b/docs/dev/_images/nova.png differ diff --git a/docs/dev/_sources/networks.rst.txt b/docs/dev/_sources/networks.rst.txt index 2ed49ea51..64aab934a 100644 --- a/docs/dev/_sources/networks.rst.txt +++ b/docs/dev/_sources/networks.rst.txt @@ -149,21 +149,34 @@ burning. This network is managed by pynucastro. above). -nova networks -============= +The ``nova`` network: +===================== -The ``nova`` and ``nova2`` networks both are intended for modeling classical novae. +This network is composed of 17 nuclei: $\isotm{H}{1,2}$, $\isotm{He}{3,4}$, $\isotm{Be}{7}$, $\isotm{B}{8}$, +$\isotm{C}{12,13}$, $\isotm{N}{13-15}$, $\isotm{O}{14-17}$, $\isotm{F}{17,18}$ and is used to model the onset of +a classical novae thermonuclear runaway. The first set of nuclei, $\isotm{H}{1,2}$, $\isotm{He}{3,4}$ represent +the pp-chain sector of the reaction network, while the second set, of $\isotm{Be}{7}$, and $\isotm{B}{8}$, describe +the involvement of the x-process. Finally, all the remaining nuclei are active participants of +the CNO cycle with endpoints at $\isotm{F}{17}$ and $\isotm{F}{18}$. The triple-$\alpha$ reaction +$\alpha(\alpha\alpha,\gamma)\isotm{C}{12}$, serves as bridge between the nuclei of first and the last set. +The the cold-CNO chain of reactions of the CN-branch are: -* ``nova`` focuses just on CNO/hot-CNO: +* :math:`\isotm{C}{12}(p,\gamma)\isotm{N}{13}(\beta^{+}\nu_e)\isotm{C}{13}(p,\gamma)` - .. figure:: nova.png - :align: center +while the NO-branch chain of reactions is: -* ``nova2`` expands ``nova`` by adding the pp-chain nuclei: +* :math:`\isotm{N}{14}(p,\gamma)\isotm{O}{15}(\beta^{+})\isotm{N}{15}(p,\gamma)\isotm{O}{16}(p,\gamma)\isotm{F}{17}(\beta^{+}\nu_e)\isotm{O}{17}` - .. figure:: nova2.png - :align: center +where the isotopes $\isotm{N}{15}$ and $\isotm{O}{17}$ may decay back into $\isotm{C}{12}$ and $\isotm{N}{14}$ through +$\isotm{N}{15}(p,\alpha)\isotm{C}{12}$ and $\isotm{O}{17}(p,\alpha)\isotm{N}{14}$ respectively. + +.. figure:: ../../networks/nova/nova.png + :align: center + +Once the temperature reaches a threshold of $\gtrsim 10^8\,\mathrm{K}$, the fast $p$-captures, for example, +$\isotm{N}{13}(p,\gamma)\isotm{O}{14}$, are more likely than the $\beta^{+}$-decays $\isotm{N}{13}(\beta^{+}\nu_e)\isotm{C}{13}$ +reactions. These rates are also included in this network. He-burning networks diff --git a/docs/dev/networks.html b/docs/dev/networks.html index f46c7334f..eb8a334e5 100644 --- a/docs/dev/networks.html +++ b/docs/dev/networks.html @@ -75,7 +75,7 @@
  • general_null
  • iso7, aprox13, aprox19, and aprox21
  • CNO_extras
    • -
  • nova networks
    • +
  • The nova network:
  • He-burning networks