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The fiber coupler and beam stabilization system of the GRAVITY interferometer
O. Pfuhl, M. Haug, F. Eisenhauer +20
We present the installed and fully operational beam stabilization and fiber injection subsystem feeding the 2nd generation VLTI instrument GRAVITY. The interferometer GRAVITY requi…
High-J CO SLEDs in nearby infrared bright galaxies observed by Herschel-PACS
N. Mashian, E. Sturm, A. Sternberg +16
We report the detection of far-infrared (FIR) CO rotational emission from nearby active galactic nuclei (AGN) and starburst galaxies, as well as several merging systems and Ultra-L…
The GRAVITY metrology system: modeling a metrology in optical fibers
N. Blind, H. Huber, F. Eisenhauer +20
GRAVITY is the second generation VLT Interferometer (VLTI) instrument for high-precision narrow-angle astrometry and phase-referenced interferometric imaging. The laser metrology s…
GRAVITY: the Calibration Unit
N. Blind, F. Eisenhauer, M. Haug +19
We present in this paper the design and characterisation of a new sub-system of the VLTI 2nd generation instrument GRAVITY: the Calibration Unit. The Calibration Unit provides all…