The PyChem.libimf module

PyChem.libimf.ComputeConstants(m_s, a_s, mmin, mmax)

compute the coefficients of the power laws (b_s) that normalize the imf:

Parameters

• m_s (ndarray) – masses

• a_s (ndarray) – slopes

• mmin (float) – min mass of the stars in the IMF

• mmax (float) – max mass of the stars in the IMF

Returns

b_s

PyChem.libimf.WriteH5Params(ParentGroup, Mmin, Mmax, m_s, a_s)

Write the IMF parameters in an hdf5 file:

Parameters

• f (file handler) – file

• Mmin (float) – min mass of the stars in the IMF

• Mmax (float) – max mass of the stars in the IMF

• m_s (ndarray) – masses

• a_s (ndarray) – slopes

Returns

None

PyChem.libimf.WriteParams(f, Mmin, Mmax, m_s, a_s)

Write the IMF parameters in a file:

Parameters

• f (file handler) – file

• Mmin (float) – min mass of the stars in the IMF

• Mmax (float) – max mass of the stars in the IMF

• m_s (ndarray) – masses

• a_s (ndarray) – slopes

Returns

None

PyChem.libimf.imf(m, m_s, a_s, b_s, mmin, mmax)

Compute an IMF, as a suite of power law:

Parameters

• m (float) – star mass

• m_s (ndarray) – masses

• a_s (ndarray) – slopes

• b_s (ndarray) – constants

• mmin (float) – min mass of the stars in the IMF

• mmax (float) – max mass of the stars in the IMF

Returns

imf

PyChem.libimf.imfv(m, m_s, a_s, b_s, mmin, mmax)

Warning

Needs to be documented !!!

Parameters

• m (float) – star mass

• m_s (ndarray) – masses

• a_s (ndarray) – slopes

• b_s (ndarray) – constants

• mmin (float) – min mass of the stars in the IMF

• mmax (float) – max mass of the stars in the IMF