本文整理匯總了Python中classy.Class.get_thermodynamics方法的典型用法代碼示例。如果您正苦於以下問題：Python Class.get_thermodynamics方法的具體用法？Python Class.get_thermodynamics怎麽用？Python Class.get_thermodynamics使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類classy.Class的用法示例。
在下文中一共展示了Class.get_thermodynamics方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: len
# 需要導入模塊: from classy import Class [as 別名]
# 或者: from classy.Class import get_thermodynamics [as 別名]
times = M.get_current_derived_parameters(['tau_rec','conformal_age'])
tau_rec=times['tau_rec']
tau_0 = times['conformal_age']
tau1 = np.logspace(math.log10(tau_ini),math.log10(tau_rec),tau_num_early)
tau2 = np.logspace(math.log10(tau_rec),math.log10(tau_0),tau_num_late)[1:]
tau2[-1] *= 0.999 # this tiny shift avoids interpolation errors
tau = np.concatenate((tau1,tau2))
tau_num = len(tau)
#
# use table of background and thermodynamics quantitites to define some functions
# returning some characteristic scales
# (of Hubble crossing, sound horizon crossing, etc.) at different time
#
background = M.get_background() # load background table
#print background.viewkeys()
thermodynamics = M.get_thermodynamics() # load thermodynamics table
#print thermodynamics.viewkeys()
#
background_tau = background['conf. time [Mpc]'] # read conformal times in background table
background_z = background['z'] # read redshift
background_aH = 2.*math.pi*background['H [1/Mpc]']/(1.+background['z'])/M.h() # read 2pi * aH in [h/Mpc]
background_ks = 2.*math.pi/background['comov.snd.hrz.']/M.h() # read 2pi/(comoving sound horizon) in [h/Mpc]
background_rho_m_over_r = (background['(.)rho_b']+background['(.)rho_cdm']) /(background['(.)rho_g']+background['(.)rho_ur']) # read rho_r / rho_m (to find time of equality)
background_rho_l_over_m = background['(.)rho_lambda'] /(background['(.)rho_b']+background['(.)rho_cdm']) # read rho_m / rho_lambda (to find time of equality)
thermodynamics_tau = thermodynamics['conf. time [Mpc]'] # read confromal times in thermodynamics table
thermodynamics_kd = 2.*math.pi/thermodynamics['r_d']/M.h() # read 2pi(comoving diffusion scale) in [h/Mpc]
#
# define a bunch of interpolation functions based on previous quantities
#
background_z_at_tau = interp1d(background_tau,background_z)
background_aH_at_tau = interp1d(background_tau,background_aH)