X-ray luminosity / rotation period relations
=============================================

.. p23ready

.. currentmodule:: PyAstronomy.pyasl
.. autoclass:: Pizzolato2003
   :members:

Example: Plot Lx and Lx/Lbol as a function of rotation period
--------------------------------------------------------------

::
    
    from PyAstronomy import pyasl
    import matplotlib.pylab as plt
    import numpy as np
    
    p = pyasl.Pizzolato2003()
    
    # Define array of rotation periods [days]
    prot = np.arange(0.2, 30, 0.1)
    
    lx = np.zeros(prot.size)
    lxlbol = np.zeros(prot.size)
    
    # B-V color of star
    bv = 0.7
    
    # Obtain ...
    for i in range(prot.size):
        # ... log10 of X-ray luminosity
        lx[i] = p.log10lxbv(bv, prot[i])[0]
        # ... and log10(Lx/Lbol)
        lxlbol[i] = p.log10lxlbolbv(bv, prot[i])[0]
    
    # Plot result
    plt.subplot(2, 1, 1)
    plt.plot(prot, lx, 'bp-')
    plt.subplot(2, 1, 2)
    plt.plot(prot, lxlbol, 'bp-')
    plt.show()