| | 39 | || '''05.12.2022''' || '''Prof. Philipp Huke (Hochschule !Emden/Leer)''' || '''Calibration Sources for Astrophysical Spectrographs - A Comparison'''[[BR]][[BR]]The best calibration of an (astrophysical) spectrograph is done simultaneously, with the same instrument using a controllable copy of the object to be measured at the same location. Since this is not possible, strategies have been and are being developed to reproduce various properties of the measurement process as accurately as possible. The calibration strategies define the requirements for the calibration unit, which should provide precision, accuracy and stability for measurements. For this purpose, calibration sources are used whose properties are known as accurately as possible and are preferably controllable.[[BR]]In this presentation, calibration sources are compared with each other with respect to their properties and their application behavior in different calibration units.[[BR]]In particular, the most important property from ANDES' point of view, the accuracy and stability of the wavelength calibration and how this can be determined, will be discussed.[[BR]][[BR]]We are welcome to discuss the definitions of precision, accuracy and stability afterwards. [[BR]][[BR]]Presentation: German[[BR]]Slides: English[[BR]]Questions: German, English || |
