| Issue |
A&A
Volume 597, January 2017
|
|
|---|---|---|
| Article Number | A125 | |
| Number of page(s) | 12 | |
| Section | Numerical methods and codes | |
| DOI | https://doi.org/10.1051/0004-6361/201628716 | |
| Published online | 16 January 2017 | |
Spectral disentangling with Spectangular⋆
Leibniz-Institute for Astrophysics Potsdam (AIP), An der Sternwarte 16, 14482 Potsdam, Germany
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Received: 14 April 2016
Accepted: 20 September 2016
Abstract
The paper introduces the software Spectangular for spectral disentangling via singular value decomposition with global optimisation of the orbital parameters of the stellar system or radial velocities of the individual observations. We will describe the procedure and the different options implemented in our program. Furthermore, we will demonstrate the performance and the applicability using tests on artificial data. Additionally, we use high-resolution spectra of Capella to demonstrate the performance of our code on real-world data. The novelty of this package is the implemented global optimisation algorithm and the graphical user interface (GUI) for ease of use. We have implemented the code to tackle SB1 and SB2 systems with the option of also dealing with telluric (static) lines.
Key words: methods: numerical / techniques: radial velocities / techniques: spectroscopic / binaries: spectroscopic
Based in part on data obtained with the STELLA robotic telescope in Tenerife, an AIP facility jointly operated by AIP and IAC.
© ESO, 2017
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