Affiliation
Leibniz Institute for Astrophysics Potsdam (AIP)
Main category
Natural Sciences (Astrophysics and Astrononmy)
Abstract
In this lecture we will work with spectropolarimetric data acquired with the GREGOR Infrared Spectrograph (GRIS) attached to the 1.5-meter GREGOR telescope. The instrument is shortly introduced and hands-on training on the reduced data is provided. The goal is to familiarize with spectropolarimetric data acquired with spectrographs and learn the basic calibration steps using IDL routines. The topics which are covered are: (1) explanation of the format of the reduced GRIS files; (2) how to read the GRIS data; (3) familiarize with the different dimensions of the data cube, including how to represent the data in different wavelengths; (4) determination of the spectral dispersion and wavelength array; (5) normalization of the data; and (6) instrumental profile removal. With the acquired knowledge and tools the students will be able to calibrate their own data and produce science-ready data.
Do you have problems viewing the pdf-file? Download presentation
here
If the presentation contains inappropriate content, please
report the presentation. You will be redirected to the landing page.
