hydrogen and molecular density movie (MOV 10 MB)
|
We describe our visualization process for a particle-based simulation
of the formation of the first stars and their impact on cosmic
history. The dataset consists of several hundred time-steps of point
simulation data, with each time-step containing approximately two
million point particles. For each time-step, we interpolate the point
data onto a regular grid using a method taken from the radiance
estimate of photon mapping. We import the resulting regular grid
representation into ParaView, with which we extract isosurfaces
across multiple variables. Our images provide insights into the
evolution of the early universe, tracing the cosmic transition from an
initially homogeneous state to one of increasing
complexity. Specifically, our visualizations capture the build-up of
regions of ionized gas around the first stars, their evolution, and
their complex interactions with the surrounding matter. These
observations will guide the upcoming James Webb Space Telescope, the
key astronomy mission of the next decade.
|
|
Paper (PDF 4.4MB) |
|
hydrogen and molecular density movie (MOV 10 MB) |
@InProceedings{ Navratil:2007:VOC,
author = {Paul Arthur Navr\'{a}til and Jarrett L. Johnson and Volker Bromm},
title = {Visualization of Cosmological Particle-Based Datasets},
booktitle = {{IEEE Transactions on Visualization and
Computer Graphics (Proceedings of IEEE Visualization 2007) {\it (to appear)}}},
year = {2007},
month = {Nov # \slash # Dec },
}