Investigating the Relativistic Motion of the Stars Near the Supermassive Black Hole in the Galactic Center

0484584 - ASÚ 2018 RIV US eng J - Článek v odborném periodiku
Parsa, M. - Eckart, A. - Shahzamanian, B. - Karas, Vladimír - Zajaček, M. - Zensus, J. A. - Straubmeier, C.
Investigating the Relativistic Motion of the Stars Near the Supermassive Black Hole in the Galactic Center.
Astrophysical Journal. Roč. 845, č. 1 (2017), 22/1-22/19. ISSN 0004-637X. E-ISSN 1538-4357
Grant CEP: GA MŠMT(CZ) 7E13012
GRANT EU: European Commission(XE) 312789 - STRONGGRAVITY
Institucionální podpora: RVO:67985815
Klíčová slova: :astrometry * black hole physics * galactic center
Obor OECD: Astronomy (including astrophysics,space science)
Impakt faktor: 5.551, rok: 2017

The S-star cluster in the Galactic center allows us to study the physics close to a supermassive black hole, including distinctive dynamical tests of general relativity. We aim at a new and practical method to investigate the relativistic orbits of stars in the gravitational field near Sgr A(*). We use a first-order postNewtonian approximation to calculate the stellar orbits with a broad range of periapse distance r(p) We present a method that employs the changes in orbital elements derived from elliptical fits to different sections of the orbit.
Trvalý link: http://hdl.handle.net/11104/0279759