You have reached Kris Yirak's homepage on the PAS webserver at the UR.

For this you get a


I am a graduate student in the computational astrophysics group here at the UR headed by Prof. Adam Frank. I study the physics of star formation, with particular emphasis on the wonderful phenomena known as HH objects. Here's a movie of observations of one, by one of our collaborators, Pat Hartigan at Rice University:

Credit: Pat Hartigan at Rice U.

Some sample movies of 3D simulations I have performed of HH objects may be found by clicking the image below, a sample frame of one of my recent simulations:


An example simulation in which "clumps" propagate together, interacting with each other, producing clump-clump shocks and a broad, uneven leading bow shock.

I will soon have a gallery page up.


A copy of my CV may be found here.

Check me out on ADS.


Recent things:

Halifax, October 16–18, 2009 online materials

Perhaps I can interest you in the material from our latest meeting?

Last modified: December, 2009