Davor Krajnović's IDL Programs

All my software is freely available for any non-commercial purposes. However, if you use it for published research, I would appreciate an acknowledgement.

Here you can find the following routines:

Kinemetry

An IDL program to analyse 2D maps of the moments of the line-of-sight velocity distribution (LOSVD).

    

This software implements the Kinemetry method developed by Krajnović et al. (2006 MNRAS, 366, 787) to analyse maps of kinematic moments. This method is a generalisation of surface photometry to all moments of the LOSVD. It performs harmonic expansion of 2D maps of observed moments (surface brightness, velocity, velocity dispersion, h3, h4...) along the best fitting ellipses (either fixed or free to change along the radii). Its purpose is to robustly quantify maps of the LOSVD moments, describe trends in structures and detect morphological and kinematic sub-components. If you are interested in determining global position angle of velocity maps, as described in the Appendix C of Krajnović et al. (2006), please follow this link for the IDL implementation of the code.

The source code of the IDL program KINEMETRY, with instructions and examples, can be downloaded from here (34 KB). In this release the kinemetry software was expanded to work also on images of galaxies and to perform isophotometric analysis. Please note there is a small change in terms of backward compatibility regarding reconstruction of moment maps which is documented. This version was last updated on 17 May 2010.

Also required is the following IDL routine, which must be downloaded separately:

And if you just started using IDL and still do not have the IDL Astronomy User's Library installed, or if you have an old version, you should immediately get it from here.

Comments and suggestions are welcome and appreciated. If you have any questions, feel free to contact me:

Last modified: 17 May 2010