Observational Performance of Fiber Optics - High Precision Sky Subtraction and Radial Velocities

Details Observational Performance of Fiber Optics - High Precision Sky Subtraction and Radial Velocities Observational Performance of Fiber Optics - High Precision Sky Subtraction and Radial Velocities

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aspc...37..223b&link_type=abstract

"Fiber Optics in Astronomy II. Astronomical Society of the Pacific Conference Series, Proceedings of the second "Fibre Optics in

Physics

Optics

13

Scientific paper

Fiber optics are in widespread use for multi-object spectroscopy. Although their ability to observe objects fainter than the night sky has often been questioned. We present a recipe for sky subtraction with fiber optics that allows adequate sky subtraction to better than 1% in the core of the night sky emission lines. Besides allowing a multiplex advantage, the scrambling properties of fiber optics allow higher precision velocity measurements than have been possible with classical slits. A discussion of image radial scrambling is presented. In addition, preliminary results from a velocity survey are given.

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