# Wolfgang Tichy

Welcome to my homepage!
I am a member of the FAUST Group
in the
Physics Department
at
Florida Atlantic University.
If you would like to send me electronic mail, please send it to
wolf "at" fau.edu.
My research interests span a broad range of topics including
projects in numerical relativity,
gravitational waves, post-Newtonian theory.

The NSF's LIGO gravitational wave detectors are among a number of new
facilities all over the world which are designed to directly detect and
measure gravitational waves. These waves come from a variety of
astrophysical sources and open a new window to the universe. One of
the most promising sources for these detectors are the inspirals and mergers
of compact-object binaries (i.e., systems containing black holes or
neutron stars).
As the two objects get close, fully
non-linear numerical simulations of the Einstein equations are required to
make predictions about the final part of the inspiral and subsequent merger.
Using the moving puncture approach, it is now possible to evolve
compact-object binaries through many orbits, merger and the ringdown of the
final black hole. Thus at least in the sense of numerical methods
the compact-object binary evolution problem is now well understood.
The main task has become to accurately model different physical problems.
I am using the moving puncture method to explore more physically
realistic situations.
In particular, I plan to address several key physics issues such as:
(i) How important is neutron star spin in the evolutions of neutron star
binaries?
(ii) How can we best join a very long post-Newtonian inspiral
waveform and a numerically obtained waveform from a compact object binary?
(iii) Up to which frequency can post-Newtonian waveforms be trusted, and how
does this frequency depend on spins and mass ratios?
(iv) Can we get significantly better waveforms if we use more realistic
initial data with less artificial ``junk" radiation?
(v) I also work on the production of gravitational wave
templates for LIGO's data analysis
groups through the Numerical INJection and Analysis (NINJA) collaboration
and the Numerical Relativity - Analytical Relativity (NRAR) collaboration.
A highly efficient computer code is needed to
address these issues. I am using BAM code, that has been developed by the
numerical relativity groups at the University of Jena in Germany and our
group Florida Atlantic University (FAU).

Preprints on
http://arXiv.org
Curriculum Vitae and Research Interests
Pages with some of my research:

Two black holes in orbit
Two neutron stars in orbit
GW170817
Orbits around single black holes
High-Order, Asymptotically Matched Initial Data
Software

## Teaching

Mechanics (PHY 6247)

Some fun stuff:

Gravity, black holes and gravitational waves for dummies
Britney Spears and Semiconductors
CIA
Church of the Flying Spaghetti Monster
Basic Facts (helpful for dealing with religious extremists)
Religion
Tree of Life

My favorite bookmarks.