Publication date: Dec 2005
Abstract:
We describe a new method to developing a realistic fully general
relativistic model and computer code of optical projection in a strong,
spherically symmetric gravitational field. Classical theoretical
analysis of optical projection for an observer in the vicinity of a
Schwarzschild black hole was extended to black hole spacetimes with a
repulsive cosmological constant (Schwarzschild-de Sitter spacetimes). In
our simulation we consider both null geodesics beyond and ahead of the
turning point. Simulation takes care of frequency shift effects, as well
as the amplification of intensity. Our code generates static images of
sky for static observers and movie simulation for free-falling
observers. We use techniques of parallel programming to get high
performance and fast run of our code.
Authors:
Bakala, Pavel; Čermák, Petr; Hledík, Stanislav; Stuchlík, Zdeněk; Truparová Plšková, Kamila;