Maria Cristina Babiuc
Department of Physics and Astronomy
University of Pittsburgh
Pittsburgh, PA, 15260
E-mail: maria@einstein.phyast.pitt.edu
Office Phone: 412-624-9089
Field of Research
Numerical Relativity
The physical objective is to compute the gravitational waves emanating
from a compact source.
For this purpose, I use the methods of Numerical Relativity to solve
the Einstein equations that describe gravity in terms of the curvature
of spacetime.
I am working on a three-dimensional fully-nonlinear finite-difference code,
that calculates the solutions to Einstein's equations
in the context of a well-posed initial-boundary value problem.
This is obtained using the harmonic formulation of Einstein's
equations.
The full ten nonlinear Einstein equations, translated into the computational
formalism, are computed in the interior of the computational
domain and on the inner boundary.
The computed data is transformed then into standard coordinates,
and the gravitational news are computed at future null infinity.
I am running related testbeds that allow the black holes to move through
the computational domain during black holes simulations.
The code is written using the Cactus computational toolkit
to support I/O, parallelization, memory management, and parameter handling.
Other fields of interest:
Astrophysics, General Relativity, Neutron Stars, Cosmological Magnetic Fields, 5-Dimensions, Gauge Theory
Recent Papers and Presentations
- Radius Constraint For A Magnetized Neutron Star
Maria Babiuc
AIP Conference Proceedings Volume 686
"The Astrophysics of Gravitational Wave Sources"
College Park, Maryland (USA), 24-26 April 2003
Article
- Some mathematical problems in numerical relativity
Maria Babiuc, Bela Szilagyi, Jeffrey Winicour
319th WE-Heraeus-Seminar
"Mathematical Relativity: New Ideas and Developments"
Physikzentrum Bad Honnef, Germany,
March 1st-5th 2004
gr-qc/0404092
- Cactus Applications to Characteristic Evolution
Maria Babiuc, Bela Szilagyi, Jeffrey Winicour
"Cactus Retreat"
Louisiana State University, Baton Rouge, LA, USA April 29-May 1st 2004
Presentation
- Some mathematical problems in numerical relativity
Maria Babiuc, Bela Szilagyi, Jeffrey Winicour
319th WE-Heraeus-Seminar
"Mathematical Relativity: New Ideas and Developments"
Physikzentrum Bad Honnef, Germany,
March 1st-5th 2004
gr-qc/0404092
- Gravitational wave extraction based on Cauchy-characteristic extraction and characteristic evolution
Maria Babiuc, Bela Szilagyi, Ian Hawke, Yosef Zlochower
accepted,
"Classical and Quantum Gravity"
March, 2005
gr-qc/0501008
- Gravitational Wave Extraction based on the Cauchy-Characteristic Method
Maria Babiuc, Bela Szilagyi, Ian Hawke, Yosef Zlochower
"8th Eastern Gravity Meeting"
Wake Forest University, Winston-Salem, NC, March 18-19 2005
Presentation
- Abigel Code Results for the Stage 1 Apples With Apples Tests
Maria Babiuc, Bela Szilagyi, Jeff Winicour
"Apples-with-Apples Workshop"
Cordoba, Argentina, March 14-25 2005
Presentation
Recent Conferences and Workshops Attendance
-
"The Astrophysics of Gravitational Wave Sources"
The University of Maryland's Inn and Conference Center
Maryland, USA, April 24-26, 2003
-
"Great Lakes Cosmology VII"
University of Michigan, Ann Arbor, MI, 15-18 May 2003
-
"Apples-with-Apples Retreat"
Louisiana State University, Baton Rouge, LA, USA, April 26-28 2004
-
"Cactus Retreat"
Louisiana State University, Baton Rouge, LA, USA April 29-May 1st 2004
-
"New Methods for Developing Peta-scalable Codes"
Pittsburgh Supercomputing Center, Pittsburgh, PA, USA, May 3 - 4, 2004
-
"Enabling Technologies For High End Computer Simulations"
Lawrence Berkeley National Laboratory, Berkeley, CA, USA, August 24 - 27, 2004
-
"8th Eastern Gravity Meeting"
Louisiana State University, Baton Rouge, LA, USA, April 26-28 2004
maria@einstein.phyast.pitt.edu
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