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20 lines
385 B
Python
20 lines
385 B
Python
from numpy import inf
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from scipy.optimize import curve_fit
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def nfw(r, rho_0, r_s):
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r_norm = r / r_s
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return rho_0 / (r_norm * (1 + r_norm) ** 2)
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def fit_nfw(radius, densities):
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popt, pcov = curve_fit(
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nfw,
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radius,
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densities,
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verbose=1,
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method="trf",
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max_nfev=1000,
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bounds=([0, 0], [inf, 1]),
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)
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return popt
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