Roland Haas

Image of Roland Haas

Roland Haas

Senior Research Programmer

Contact Information

Email: rhaas@ncsa.illinois.edu
pgp key B046 8485 477F 66A1 C33E 6370 DB68 0467 EA2C CB60
Mail: National Center for Supercomputing Applications
University of Illinois at Urbana-Champaign
1205 W. Clark St., MC-257
Urbana, IL 61801
Phone: +1 (217) 300-4228
Office: NCSA 4006D
Curriculum Vitae
Publications

Background

My current research focuses on the simulation of gravitational waves generated during the inspiral of both comparable mass (black hole—neutron star) and extreme mass-ratio (black hole—white dwarf and supermassive black hole—stellar mass object) binaries as well as possible electromagnetic signatures of these events. In particular the inspiral and merger of neutron star binaries. With the advent of ground based gravitational wave detectors such as LIGO, VIRGO for the first time, directly directing gravitational waves is possible. This will allow us to probe the strong field regime of gravity, verifying the predictions of General Relativity and to “see” into astrophysical systems that are opaque or invisible to electromagnetic radiation.

Extracting these signal from the data stream requires templates to filter the signal out of the noise detector output. My work aims at producing numerical waveforms which are used to produce template data banks for this waveform extraction. If observed the gravitational waves generated by a neutron star—neutron star merger will shed light on the nuclear equation of state (and thus microphysics) of nuclear matter.

Research interests

I am interested in

  • Numerical relativity
  • Relativistic (magneto-)hydrodynamics
  • Extreme mass ratio inspirals and self-force problems
  • Black hole perturbation theory
  • Gravitational and electromagnetic emission from mixed black hole—star systems
  • The Einstein Toolkit
  • Numerical techniques for mesh refinement, and elliptic problems

Professional Experience

Publications

A list of my recent publications can be found on SAO/NASA ADS or in my Curriculum Vitae.
My PhD thesis is available here.