{ "cells": [ { "cell_type": "markdown", "metadata": {}, "source": [ "# O'Connor 2015 Models\n", "\n", "Data from O'Connor 2015, black hole forming simulations of a 40 solar mass progenitor from Woosley and Heger 2007 and the LS220 EOS.\n", " \n", "Reference: O'Connor ApJS 219 24 2015\n", "- doi:10.1088/0067-0049/219/2/24\n", "- arXiv:1411.7058" ] }, { "cell_type": "code", "execution_count": null, "metadata": {}, "outputs": [], "source": [ "import matplotlib as mpl\n", "import matplotlib.pyplot as plt\n", "import numpy as np\n", "\n", "from astropy import units as u \n", "\n", "from snewpy.neutrino import Flavor, MixingParameters\n", "from snewpy.models.ccsn import OConnor_2015\n", "from snewpy.flavor_transformation import NoTransformation, AdiabaticMSW, ThreeFlavorDecoherence\n", "\n", "mpl.rc('font', size=16)\n", "%matplotlib inline" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "## Initialize Models\n", "\n", "To start, let’s see what progenitors are available for the `OConnor_2015` model. We can use the `param` property to view all physics parameters and their possible values:" ] }, { "cell_type": "code", "execution_count": null, "metadata": {}, "outputs": [], "source": [ "OConnor_2015.param" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "We’ll initialise this progenitor. If this is the first time you’re using a progenitor, snewpy will automatically download the required data files for you." ] }, { "cell_type": "code", "execution_count": null, "metadata": {}, "outputs": [], "source": [ "model = OConnor_2015(progenitor_mass=40*u.solMass)\n", "\n", "model" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "Finally, let’s plot the luminosity of different neutrino flavors for this model. (Note that the `OConnor_2015` simulation didn’t distinguish between $\\nu_x$ and $\\bar{\\nu}_x$, so both have the same luminosity.)" ] }, { "cell_type": "code", "execution_count": null, "metadata": {}, "outputs": [], "source": [ "fig, ax = plt.subplots(1, figsize=(8, 6), tight_layout=False)\n", "\n", "for flavor in Flavor:\n", " ax.plot(model.time, model.luminosity[flavor]/1e51, # Report luminosity in units foe/s\n", " label=flavor.to_tex(),\n", " color='C0' if flavor.is_electron else 'C1',\n", " ls='-' if flavor.is_neutrino else ':',\n", " lw=2)\n", "ax.set(xlim=(0, 0.55),\n", " xlabel=r'$t-t_{\\rm bounce}$ [s]',\n", " title=r'{}: {} $M_\\odot$'.format(model.metadata['EOS'], model.metadata['Progenitor mass'].value))\n", "ax.grid()\n", "ax.legend(loc='upper right', ncol=2, fontsize=18)\n", "ax.set(ylabel=r'luminosity [foe s$^{-1}$]');\n" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "## Initial and Oscillated Spectra\n", "\n", "Plot the neutrino spectra at the source and after the requested flavor transformation has been applied.\n", "\n", "### Adiabatic MSW Flavor Transformation: Normal mass ordering" ] }, { "cell_type": "code", "execution_count": null, "metadata": {}, "outputs": [], "source": [ "# Adiabatic MSW effect. NMO is used by default.\n", "xform_nmo = AdiabaticMSW(MixingParameters())\n", "\n", "# Energy array and time to compute spectra.\n", "# Note that any convenient units can be used and the calculation will remain internally consistent.\n", "E = np.linspace(0,100,201) * u.MeV\n", "t = 400*u.ms\n", "\n", "ispec = model.get_initial_spectra(t, E)\n", "ospec_nmo = model.get_transformed_spectra(t, E, xform_nmo)" ] }, { "cell_type": "code", "execution_count": null, "metadata": {}, "outputs": [], "source": [ "fig, axes = plt.subplots(1,2, figsize=(12,5), sharex=True, sharey=True, tight_layout=True)\n", "\n", "for i, spec in enumerate([ispec, ospec_nmo]):\n", " ax = axes[i]\n", " plt.sca(ax)\n", " spec.plot('energy')\n", " \n", " ax.set(title='Initial Spectra: $t = ${:.1f}'.format(t) if i==0 else 'Oscillated Spectra: $t = ${:.1f}'.format(t))\n", " ax.grid()\n", " ax.legend(loc='upper right', ncol=2, fontsize=16)\n", "\n", "ax = axes[0]\n", "ax.set(ylabel=r'flux, MeV')\n", "\n", "fig.tight_layout();" ] } ], "metadata": { "kernelspec": { "display_name": "Python 3 (ipykernel)", "language": "python", "name": "python3" }, "language_info": { "codemirror_mode": { "name": "ipython", "version": 3 }, "file_extension": ".py", "mimetype": "text/x-python", "name": "python", "nbconvert_exporter": "python", "pygments_lexer": "ipython3", "version": "3.13.5" }, "vscode": { "interpreter": { "hash": "e2528887d751495e023d57d695389d9a04f4c4d2e5866aaf6dc03a1ed45c573e" } } }, "nbformat": 4, "nbformat_minor": 4 }