Cr Research

The text on the color bars didn’t survive the jpeging process too well.

Evan is a member of the LSST team, and so now our “doughnut method” for constraining type Ia SNe will be a small part of the science goals of the LSST.

To read more about the “doughnut method“, check out our paper on it, Prompt Ia Supernovae are Significantly Delayed which has been submitted to ApJ Letters.

A poster of one of our white dwarf collision simulations will be on display outside of the SESE office very soon. It will probably also be on display somewhere on the Astronomy floor of the F-wing. Here is the final mockup from Susan Selkirk.

Depicted here, two CO 0.6Msun white dwarfs collide with an impact parameter of 1/2 the white dwarf radius. They detonate as a supernova and end up looking something like Tycho’s SNR shown in the background of the poster. This simulation consisted of approximately 800,000 particles and used a 13 isotope reaction network.

I recently wrote a visualization routine for SNSPH that incorporates the smoothing kernel and interpolates on a grid. I think the results are pretty impressive. Click each image to get a larger version.

The actual plotting of the routine’s output is done in Veusz.