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June 23, 2022 00:42
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| { | |
| "cells": [ | |
| { | |
| "cell_type": "markdown", | |
| "metadata": {}, | |
| "source": [ | |
| "# Play with metallicity in the nearby disk\n", | |
| "## Authors\n", | |
| "- **David W. Hogg** (NYU) (Flatiron)" | |
| ] | |
| }, | |
| { | |
| "cell_type": "code", | |
| "execution_count": null, | |
| "metadata": {}, | |
| "outputs": [], | |
| "source": [ | |
| "import astropy.io.fits as fits\n", | |
| "import numpy as np\n", | |
| "import pylab as plt\n", | |
| "%matplotlib inline" | |
| ] | |
| }, | |
| { | |
| "cell_type": "code", | |
| "execution_count": null, | |
| "metadata": {}, | |
| "outputs": [], | |
| "source": [ | |
| "hdus = fits.open(\"highQ_kinematics.fits\")" | |
| ] | |
| }, | |
| { | |
| "cell_type": "code", | |
| "execution_count": null, | |
| "metadata": {}, | |
| "outputs": [], | |
| "source": [ | |
| "data = hdus[1].data" | |
| ] | |
| }, | |
| { | |
| "cell_type": "code", | |
| "execution_count": null, | |
| "metadata": {}, | |
| "outputs": [], | |
| "source": [ | |
| "hdus.close()" | |
| ] | |
| }, | |
| { | |
| "cell_type": "code", | |
| "execution_count": null, | |
| "metadata": {}, | |
| "outputs": [], | |
| "source": [ | |
| "data.__dict__" | |
| ] | |
| }, | |
| { | |
| "cell_type": "code", | |
| "execution_count": null, | |
| "metadata": {}, | |
| "outputs": [], | |
| "source": [ | |
| "MG = data['phot_g_mean_mag'][:] + 5. * np.log10(data['parallax']) - 10.\n", | |
| "BR = data['phot_bp_mean_mag'][:] - data['phot_rp_mean_mag'][:]" | |
| ] | |
| }, | |
| { | |
| "cell_type": "code", | |
| "execution_count": null, | |
| "metadata": {}, | |
| "outputs": [], | |
| "source": [ | |
| "# Check that the data are okay.\n", | |
| "plt.figure(figsize=(7, 7))\n", | |
| "plt.scatter(BR, MG,\n", | |
| " c=data['astrophysical_parameters_mh_gspphot'][:],\n", | |
| " s=1, alpha=0.5, vmin=-0.5, vmax=0.25)\n", | |
| "plt.xlim(0.2, 2.5)\n", | |
| "plt.ylim(8., -3.)\n", | |
| "plt.xlabel(\"Gaia $B-R$ (mag)\")\n", | |
| "plt.ylabel(\"Gaia $M_G$ (mag)\")\n", | |
| "plt.colorbar()\n", | |
| "plt.savefig(\"cmd.png\")" | |
| ] | |
| }, | |
| { | |
| "cell_type": "code", | |
| "execution_count": null, | |
| "metadata": {}, | |
| "outputs": [], | |
| "source": [] | |
| } | |
| ], | |
| "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": "3.9.12" | |
| } | |
| }, | |
| "nbformat": 4, | |
| "nbformat_minor": 2 | |
| } |
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