Detailed Information on Publication Record
2006
A Virtual Trip to the Schwarzschild-de Sitter Black Hole
BAKALA, Pavel, Petr ČERMÁK, Stanislav HLEDÍK, Zdeněk STUCHLÍK, Kamila TRUPAROVÁ PLŠKOVÁ et. al.Basic information
Original name
A Virtual Trip to the Schwarzschild-de Sitter Black Hole
Authors
Edition
Singapore, Eleventh Marcel Grossmann Meeting on General Relativity Berlin, 3 pp. 2006
Publisher
World Scientific
Other information
Language
English
Type of outcome
Stať ve sborníku
Field of Study
10308 Astronomy
Confidentiality degree
není předmětem státního či obchodního tajemství
Organization unit
Faculty of Philosophy and Science in Opava
ISBN
978-981-283-426-3
Keywords in English
black hole, computer code, gravitational lensing, Schwarzschild-de Sitter
Tags
International impact
Links
MSM4781305903, plan (intention).
Změněno: 8/12/2020 13:48, Mgr. Pavlína Jalůvková
Abstract
V originále
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. New interesting investigated effect is diffrent behaviour of apparent angular size of the black hole as a function of the cosmological constant for observers above and under circular photon orbit.