pahprops.h File Reference

#include "../dustmodel.h"

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Typedefs
typedef dust_drudeprofs *	dust_pahprofiles
Functions
double	bndust_PAHatoNC (double a)
double	bndust_PAHNctoHc (double Nc)
double	bndust_PAHatoHc (double a)
void	dust_CPAHDrudes (double a, dust_ionisation state, dust_pahenhancements *e, dust_pahprofiles res)
double	bndust_PAHCutoff (double lambda, double a, dust_ionisation state)
	The cutoff of PAH absorption. See Eq A2 and A3 of the Li & Draine paper.
Variables
dust_drudeprofs	dust_DL_pahs_neutral [14]
dust_drudeprofs	dust_DL_pahs_ionised [14]

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Detailed Description

Bojan Nikolic <bojan@bnikolic.co.uk>, <b.nikolic@mrao.cam.ac.uk>

Definition of properties of PAHs

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Function Documentation

double bndust_PAHatoHc

(

double

a

)

Returns the H/C ratio given a grain radius (calls bndust_PAHNctoHc).

References bndust_PAHatoNC(), and bndust_PAHNctoHc().

Referenced by dust_CPAHDrudes(), and dust_nCHmodes().

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double bndust_PAHatoNC

(

double

a

)

Returns the number of carbon atoms given a radius a (in metres).

Returns the number of carbon atoms in a grain of radius a (a in in metres).

note a must be metres

Referenced by bndust_PAHatoHc(), bndust_PAHCutoff(), dust_nCCIPmodes(), dust_nCCOPmodes(), and Dust::GenPAHCC::GenPAHCC().

double bndust_PAHNctoHc

(

double

Nc

)

Returns an approximate ratio of number of hydrogren atoms to carbon atoms given the number of carbon atoms. See eq 4 of 2001ApJ...554..778L

Referenced by bndust_PAHatoHc().

void dust_CPAHDrudes	(	double	a,
		dust_ionisation	state,
		dust_pahenhancements *	e,
		dust_pahprofiles	res
	)

Calculate the appropriate drude profiles for a particular PAH. a is the grain radius

References bndust_PAHatoHc(), dust_pahenhancements::E62, dust_pahenhancements::E77, dust_pahenhancements::E86, dust_drudeprofs::gamma, dust_drudeprofs::sigma, and dust_drudeprofs::wavel.

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Variable Documentation

dust_drudeprofs dust_DL_pahs_neutral[14]

These are the profiles as given in Table 1 of 2001ApJ...554..778L. Wavelengths in micron. Gamma is dimensionless. Cross section in 10^-20 cm per Carbon atom.