LALSQTPNWaveformTest.c File Reference

The user interface for the SpinQuadTaylor program. More...

Prototypes
int	main (int argc, char *argv[])
	The main program. More...

Detailed Description

The user interface for the SpinQuadTaylor program.

This file is an example howto use the SpinQuadTaylor program. The input parameters are:
Waveform parameters:(note: \(i=1,2\) and \(j=x,y,z\))

• masses of the BHs (or NSs) \(m_i\) in \(M_\odot\)
• the spin components \(\chi_{ij}\), the values of \(\sqrt{\sum_j\chi_{ij}}\), are between 0 and 1
• the quadrupole parameters \(w_i\in(4,8)\) for NSs [1] and \(w_i=1\) for BHs[2] are 1 (default 1)
• the inclination (angle between the line of sight and Newtonian orbital angular momentum) \(\iota\) in \(rad\)
• the initial frequency \(f_L\) in \(Hz\)
• the distance \(d\) in \(Mpc\)
• the sampling time \(t_s\) in \(s\)

Program parameters:

• the name of the output file (default out.dat)
• the PN order (newtonian, oneHalfPN, onePN, onePointFivePN, twoPN, twoPointFivePN, threePN, threePointFivePN(default))
• level of accuracy in including spin and quadrupole contributions (NO, SO, SS, SELF, QM, ALL(default))

The output file contains three coloums: elapsed time, \(h_+\), \(h_\times\).

\begin{gather} h_+=a_1\cos\left(2\alpha\right)\cos\left(2\Phi\right)-a_2\sin\left(2\alpha\right)\sin\left(2\Phi\right),\\ h_\times=a_1\sin\left(2\alpha\right)\cos\left(2\Phi\right)+a_2\cos\left(2\alpha\right)\sin\left(2\Phi\right) \end{gather}

with \(a_i\) amplitudes, \(\alpha\) polarization shift, \(\Phi\) phase (Eq. (4.28)-(4.30) of [3] up to leading order (The \(\Phi\) is shifted by \(\pi\) with respect to [3]). We note that \(\Theta=0\) in leading order because we use radiation frame).
\(a_1\), \(a_2\) are defined in LALSQTPNGenerator() function, \(\alpha\) and \(\Phi\) phase is defined in XLALSQTPNDerivator() function.
References
[1] E. Poisson, Phys.Rev. D57 5287 (1998)
[2] K. S. Thorne, Rev.Mod.Phys. 52 299 (1980)
[3] L. E. Kidder, Phys.Rev.D 52, 821 (1995)

Author

László Veréb

Date

2010.06.27.

Definition in file LALSQTPNWaveformTest.c.

Go to the source code of this file.

Function Documentation

main()

int main	(	int	argc,
		char *	argv[]
	)

The main program.

Definition at line 48 of file LALSQTPNWaveformTest.c.