Example: tmwave program

0 This example uses the function testmass_chirp() to compute the waveform and frequency evolution for a binary system. The example lets testmass_chirp() allocate all the memory. The output is saved in the file waveform.dat. For example, running this with the two masses set to $m_1=m_2 = 1.4 M_\odot$ produces an output similar to that of the filters program described in section . (See figure .)

Includes/tmwave.tex

Figure: The zero-phase chirp waveform from a $2 \times 1.4 M_\odot$ binary system, starting at an orbital frequency of 60 Hz. This waveform consists of the $l=2$ and $l=3$ modes. The top graph shows the frequency as function of time, and the middle graph shows the waveform. The bottom graph shows a 40-msec stretch near the final inspiral/plunge. Compare this to figure in Section .