Snapshots of Extreme Mass Ratio Inspirals
Steve Drasco and Scott Hughes

Waveform Generation Program

Here is a short program that can be run in Matlab (or Octave, which is free) to turn data files into waveforms and fluxes:

snapshot.m

For instructions on how to use the program, do "help snapshot" when you are in the same directory as the file snapshot.m. Here is what the help file says:


Data Files

You will need data files before you can make waveforms. The data files below were generated with a code described in Phys. Rev. D 73 024027 (2006), or equivalently gr-qc/0509101. In the table of links below, you will find all the data used to produce tables III-VII in the Phys. Rev. D version of our paper. For these links, e is eccentricity, and theta_inc is the inclination angle.

IMPORTANT: Use of this data set requires the following acknowledgement: "The supercomputers used in this investigation were provided by funding from the JPL Office of the Chief Information Officer."
Prograde orbits with spin a = 0.9M and semilatus rectum p = 6.
e = 0.1, theta_inc = 20 deg e = 0.1, theta_inc = 40 deg e = 0.1, theta_inc = 60 deg e = 0.1, theta_inc = 80 deg
e = 0.3, theta_inc = 20 deg e = 0.3, theta_inc = 40 deg e = 0.3, theta_inc = 60 deg e = 0.3, theta_inc = 80 deg
e = 0.5, theta_inc = 20 deg e = 0.5, theta_inc = 40 deg e = 0.5, theta_inc = 60 deg e = 0.5, theta_inc = 80 deg
e = 0.7, theta_inc = 20 deg e = 0.7, theta_inc = 40 deg e = 0.7, theta_inc = 60 deg e = 0.7, theta_inc = 80 deg
Retrograde orbits with spin a = 0.9M and semilatus rectum p = 12.
e = 0.1, theta_inc = 100 deg e = 0.1, theta_inc = 120 deg e = 0.1, theta_inc = 140 deg e = 0.1, theta_inc = 160 deg
e = 0.3, theta_inc = 100 deg e = 0.3, theta_inc = 120 deg e = 0.3, theta_inc = 140 deg e = 0.3, theta_inc = 160 deg
e = 0.5, theta_inc = 100 deg e = 0.5, theta_inc = 120 deg e = 0.5, theta_inc = 140 deg e = 0.5, theta_inc = 160 deg
e = 0.7, theta_inc = 100 deg e = 0.7, theta_inc = 120 deg e = 0.7, theta_inc = 140 deg e = 0.7, theta_inc = 160 deg

Here are some other data sets that people have requested.

If you would like to request your own custom data, write the orbital parameters (a, eccentricity, inclination, semilatus rectum, desired flux accuracy) on the back of a twenty dollar bill, and send it to Steve.


This site was last updated on 26 Feb 2008, by Steve Drasco.