Original title:
Modelling the bow–shock evolution along the DSO/G2 orbit in the Galactic centre
Authors:
Štofanová, L. ; Zajaček, M. ; Kunneriath, D. ; Eckart, A. ; Karas, Vladimír Document type: Papers Conference/Event: RAGtime /17.-19./, Opava (CZ), 20151117
Year:
2017
Language:
eng Abstract:
A radially directed flow of gaseous environment from a supermassive black hole affects the evolution of a bow–shock that develops along the orbit of an object passing through the pericentre. The bow–shock exhibits asymmetry between the approaching and receding phases, as can be seen in calculations of the bow-shock size, the velocity profile along the shocked layer, and the surface density of the bow–shock,\nand by emission-measure maps. We discuss these effects in the context of the recent pericentre transit of DSO/G2 near Sagittarius A*.
Keywords:
astrophysical processes; galactic center; Sagittarius A* Project no.: LTAUSA17095, GB14-37086G (CEP) Funding provider: GA MŠk, GA ČR Host item entry: Proceedings of RAGtime 17/19: Workshops on black holes and neutron stars, ISBN 9788075102577, ISSN 2336-5668