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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-24 22:10 |
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Conference: Bucharest University Faculty of Physics 2021 Meeting
Section: Atomic and Molecular Physics. Astrophysics. Applications
Title:
Generation of synthetic images for the analysis of the centroiding algorithms used in the operational activities of the LISA Constellation Acquisition Sensor
Authors:
Vlad-Andrei BÂSCEANU (1,2), Alexandru JIPA (2), Florin Adrian POPESCU (1), Gabriel CHIRIȚOI (1), Eugeniu Mihnea POPESCU (1)
Affiliation:
1) Institute of Space Science, Măgurele, Romania
2) Faculty of Physics, University of Bucharest, Măgurele, Romania
E-mail
vabasceanu@spacescience.ro
Keywords:
LISA mission, centroiding, synthetic images
Abstract:
At first, gravitational waves were a prediction of Einstein’s general relativity theory, but as of 2017 when the Laser Interferometer Gravitational-Wave Observatory (LIGO) reported the first detection of such waves they became reality. Because the gravitational wave spectrum covers a large span of frequencies, the need for complementary observations arose. The Laser Interferometer Space Antenna (LISA) is the first space-based gravitational wave observatory that operates at frequencies between 0.1 mHz and 1 Hz. As of 2017, LISA was selected as the third large mission of the European Space Agency. This paper addresses the need and the preliminary results of the simulation of synthetic images. The purpose of these images is to evaluate different centroiding algorithms that will be used by the Constellation Acquisition Sensor (CAS) aboard the three spacecrafts in order for the three satellites of the mission to get precisely aligned into the triangular formation which will allow for the interferometric detection of gravitational waves.
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