NIRI Spectroscopic Standard Stars NIRI Spectroscopic Standard Stars Standard star observations are required in spectroscopic mode of NIRI operation to allow both the cancellation of telluric features in the data and flux calibration of the spectrum obtained. Below are lists of standard stars for NIRI spectroscopic observing.
Search engines are also available for the catalogues.
Also included are links to pages describing what spectral features are present in the range of spectroscopic standards listed and a discussion of which standard stars to use for different observational modes. The the 5 nearest standards to your target coordinates will be listed. The links below display the NIRI spectroscopic standard star lists created from the Hipparcos Catalogue 1 . Stars of different spectral classifications are listed. These are useful for calibrating targets with differing science aims.