barak.absorb.calc_DLA_trans¶

barak.absorb.calc_DLA_trans(wa, redshift, vfwhm, logN=20.3, logZ=0, bHI=50, highions=True, molecules=False)[source]¶

Find the transmission after absorption by a DLA

Parameters :

Parameters :	wa : array_like, shape (N,) wavelength array. redshift : float The redshift of the DLA. vfwhm : float The resolution FWHM in km/s. logZ : float (0) log10 of the metal abundance relative to solar. For example 0 (the default) gives solar abundances, -1 gives 1/10th of solar. bHI : float (40) b parameter for the HI. Other species are assumed to be thermally broadened.
Returns :	transmission : ndarray, shape (N,) The transmission at each wavelength ticks : ndarray, shape (M,) Information for making ticks to show absorbing components.

wa : array_like, shape (N,)

wavelength array.

redshift : float

The redshift of the DLA.

vfwhm : float

The resolution FWHM in km/s.

logZ : float (0)

log10 of the metal abundance relative to solar. For example 0 (the default) gives solar abundances, -1 gives 1/10th of solar.

bHI : float (40)

b parameter for the HI. Other species are assumed to be thermally broadened.

Returns :

transmission : ndarray, shape (N,)

The transmission at each wavelength

ticks : ndarray, shape (M,)

Information for making ticks to show absorbing components.

Barak 0.3.2 documentation