Anna Boehle

TL;DR: In this paper, the mass and distance of the galaxy's central supermassive black hole Sgr A^* were estimated by using the kinematic measurements from speckle holography and adaptive optics.

TL;DR: S0-102, a star orbiting the authors' Galaxy’s supermassive black hole, is detected, doubling the number of known stars with full phase coverage and periods of less than 20 years and providing the opportunity to resolve degeneracies in the parameters describing the central gravitational potential and to test Einstein's theory of general relativity in an unexplored regime.

TL;DR: This analysis provides the first fully self-consistent test of the gravitational theory using orbital dynamic in a strong gravitational regime, that of a supermassive black hole, which can be used to constrain various gravitational and astrophysical theories.

TL;DR: In this paper, the authors presented the first orbital solution derived from Brγ line astrometry, which, when coupled with radial velocity measurements, results in a later time of closest approach (2014).

TL;DR: In this paper, the W. M. Keck II laser guide star adaptive optics system (LGSAO) and the facility near-infrared camera (NIRC2) through the K' [2.1] and L' [3.8] broadband filters were used to detect the Galactic Center source G2.