Paper:	Gravitational Lensing in the Galactic Center
Volume:	439, The Galactic Center: a Window to the Nuclear Environment of Disk Galaxies
Page:	271
Authors:	Bozza, V.; Mancini, L.
Abstract:	The fascinating perspective of observing gravitational lensing effects in the system formed by the black hole at the center of the Milky Way and the S–star cluster is presented. The central black hole, acting as a powerful gravitational lens, is able to bend the light rays emitted by the S–stars, which are moving within its neighborhood, eventually generating secondary images. The knowledge of the orbits of these stars allows us to easily predict the best times and where to point the telescopes in order to observe the secondary lensing images. The possibility of detecting this kind of events by the next–generation VLT instrument GRAVITY is ultimately discussed.

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