ASTRA: A Python Package for Cross-Instrument Stellar and Telluric Template Construction
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arXiv
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| Hauptverfasser: | , , , , , |
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| Format: | Preprint |
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2026
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| author | Silva, André M. Faria, J. P. Santos, N. C. Sousa, S. G. Viana, P. T. P. Martins, J. H. C. |
| author_facet | Silva, André M. Faria, J. P. Santos, N. C. Sousa, S. G. Viana, P. T. P. Martins, J. H. C. |
| contents | ASTRA is a Python package that provides a modular, instrument-independent interface for working with high-resolution stellar spectra. Designed to support data from multiple spectrographs, including ESPRESSO (Pepe et al., 2021), HARPS (Mayor et al., 2003; Pepe et al., 2002), MAROON-X (Seifahrt et al., 2022), and CARMENES (Quirrenbach et al., 2014). ASTRA offers a unified abstraction over their data formats, enabling consistent access to fluxes, wavelengths, uncertainties, and metadata across instruments. Furthermore, it applies the necessary wavelength and flux calibrations that are needed, as described by the official pipelines of each instrument. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_10439 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | ASTRA: A Python Package for Cross-Instrument Stellar and Telluric Template Construction Silva, André M. Faria, J. P. Santos, N. C. Sousa, S. G. Viana, P. T. P. Martins, J. H. C. Instrumentation and Methods for Astrophysics Earth and Planetary Astrophysics Solar and Stellar Astrophysics ASTRA is a Python package that provides a modular, instrument-independent interface for working with high-resolution stellar spectra. Designed to support data from multiple spectrographs, including ESPRESSO (Pepe et al., 2021), HARPS (Mayor et al., 2003; Pepe et al., 2002), MAROON-X (Seifahrt et al., 2022), and CARMENES (Quirrenbach et al., 2014). ASTRA offers a unified abstraction over their data formats, enabling consistent access to fluxes, wavelengths, uncertainties, and metadata across instruments. Furthermore, it applies the necessary wavelength and flux calibrations that are needed, as described by the official pipelines of each instrument. |
| title | ASTRA: A Python Package for Cross-Instrument Stellar and Telluric Template Construction |
| topic | Instrumentation and Methods for Astrophysics Earth and Planetary Astrophysics Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2601.10439 |