Spectral disentangling with Spectangular

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.

References in corpus (4)

• Abundances from disentangled component spectra: the eclipsing binary V578 Mon
• The spectroscopic orbit of Capella revisited
• The Araucaria Project: High-precision orbital parallax and masses of the eclipsing binary TZ~Fornacis
• Notes on disentangling of spectra II. Intrinsic line-profile variability due to Cepheid pulsations

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• Spectangular: Disentangling variable spectra
• Autonomous Disentangling for Spectroscopic Surveys
• Fundamental parameters and abundance analysis of the components in the SB2 system HD 60803