Sofia Feltzing
Professor
A new algorithm for optimizing the wavelength coverage for spectroscopic studies : Spectral Wavelength Optimization Code (swoc)
Författare
Summary, in English
The past decade and a half has seen the design and execution of several ground-based spectroscopic surveys, both Galactic and Extragalactic. Additionally, new surveys are being designed that extend the boundaries of current surveys. In this context, many important considerations must be done when designing a spectrograph for the future. Among these is the determination of the optimum wavelength coverage. In this work, we present a new code for determining the wavelength ranges that provide the optimal amount of information to achieve the required science goals for a given survey. In its first mode, it utilizes a user-defined list of spectral features to compute a figure-of-merit for different spectral configurations. The second mode utilizes a set of flux-calibrated spectra, determining the spectral regions that show the largest differences among the spectra. Our algorithm is easily adaptable for any set of science requirements and any spectrograph design. We apply the algorithm to several examples, including 4MOST, showing the method yields important design constraints to the wavelength regions.
Avdelning/ar
- Astronomi - Har omorganiserats
Publiceringsår
2016-09-11
Språk
Engelska
Sidor
2174-2191
Publikation/Tidskrift/Serie
Monthly Notices of the Royal Astronomical Society
Volym
461
Issue
2
Dokumenttyp
Artikel i tidskrift
Förlag
Oxford University Press
Ämne
- Astronomy, Astrophysics and Cosmology
Nyckelord
- Instrumentation: spectrographs
- Stars: abundances
- Stars: fundamental parameters
- Surveys
- Techniques: spectroscopic
Status
Published
Projekt
- 4MOST - massive spectroscopic surveys of the Milky Way and the Universe
- The New Milky Way
ISBN/ISSN/Övrigt
- ISSN: 0035-8711