eigenspecfuncs.h File Reference

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Functions
double	dust_draine_beta2 (double Nm, double Nc)
double	dust_PAHDebModeE (unsigned j, double TDebye, double Nm, double beta, double n)
double	dust_DebModeE (unsigned j, double TDebye, double Nm, double beta, double n)
double	dust_nCCOPmodes (double a)
double	dust_nCCIPmodes (double a)
double	dust_nCHmodes (double a)

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Detailed Description

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

Simple eigenspectrum functions

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Function Documentation

double dust_DebModeE	(	unsigned	j,
		double	TDebye,
		double	Nm,
		double	beta,
		double	n
	)

Like dust_PAHDebModeE but no shift to 2 and 3 energy levels

double dust_draine_beta2	(	double	Nm,
		double	Nc
	)

This is the shifting factor for the Debey model of eigenspectra. Seen eq 7 of the Draine & Li paper.

Parameters:

	Nm	number of modes with this nominal Debey temperature.
	Nc	number of carbon atoms.

Referenced by Dust::GenPAHCC::GenPAHCC().

double dust_nCCIPmodes

(

double

a

)

Returns the number of C-C in-plane modes given grain radius

References bndust_PAHatoNC().

Referenced by Dust::GenPAHCC::GenPAHCC().

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double dust_nCCOPmodes

(

double

a

)

Returns the number of C-C out of plane modes given grain radius

References bndust_PAHatoNC().

Referenced by Dust::GenPAHCC::GenPAHCC().

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double dust_nCHmodes

(

double

a

)

Returns the number of C-H modes (all three have same degeneracy)

References bndust_PAHatoHc().

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double dust_PAHDebModeE	(	unsigned	j,
		double	TDebye,
		double	Nm,
		double	beta,
		double	n
	)

This return the energy of the jth mode using the Debye approximation, given the Debye temperature TDebye, the number of modes Nm and the shifting factor beta, and n is the dimensionality of modes.

This is only valid for PAHs as it shifts the energies of the second and third state.

Referenced by Dust::GenPAHCC::operator[]().