X-Shooting ULLYSES: Massive Stars at Low Metallicity
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866911860751597568 |
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| author | Vink, Jorick S. Crowther, Paul Fullerton, Alex Garcia, Miriam Martins, Fabrice Morrell, Nidia Oskinova, Lida Louis, Nicole St. ud-Doula, Asif Sander, Andreas Sana, Hugues Bouret, Jean-Claude Kubatova, Brankica Marchant, Pablo Martins, Lucimara P. Wofford, Aida van Loon, Jacco Telford, O. Grace Götberg, Ylva Bowman, Dominic Erba, Christi Kalari, Venu Collaboration, The XShootU |
| author_facet | Vink, Jorick S. Crowther, Paul Fullerton, Alex Garcia, Miriam Martins, Fabrice Morrell, Nidia Oskinova, Lida Louis, Nicole St. ud-Doula, Asif Sander, Andreas Sana, Hugues Bouret, Jean-Claude Kubatova, Brankica Marchant, Pablo Martins, Lucimara P. Wofford, Aida van Loon, Jacco Telford, O. Grace Götberg, Ylva Bowman, Dominic Erba, Christi Kalari, Venu Collaboration, The XShootU |
| contents | The Hubble Space Telescope has devoted 500 orbits to observing 250 massive stars with low metallicity in the ultraviolet (UV) range within the framework of the ULLYSES program. The X-Shooting ULLYSES (XShootU) project enhances the legacy value of this UV dataset by providing high-quality optical and near-infrared spectra, which are acquired using the wide-wavelength-coverage X-shooter spectrograph at ESO's Very Large Telescope. XShootU emphasises the importance of combining UV with optical spectra for the consistent determination of key stellar parameters such as effective temperature, surface gravity, luminosity, abundances, and wind characteristics including mass-loss rates as a function of metallicity. Since uncertainties in these parameters have implications across various branches of astrophysics, the data and modelling generated by the XShootU project are poised to significantly advance our understanding of massive stars at low metallicity. This is particularly crucial for confidently interpreting JWST data of the earliest stellar generations, making XShootU a unique resource for comprehending individual spectra of low-metallicity stars. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2405_00085 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | X-Shooting ULLYSES: Massive Stars at Low Metallicity Vink, Jorick S. Crowther, Paul Fullerton, Alex Garcia, Miriam Martins, Fabrice Morrell, Nidia Oskinova, Lida Louis, Nicole St. ud-Doula, Asif Sander, Andreas Sana, Hugues Bouret, Jean-Claude Kubatova, Brankica Marchant, Pablo Martins, Lucimara P. Wofford, Aida van Loon, Jacco Telford, O. Grace Götberg, Ylva Bowman, Dominic Erba, Christi Kalari, Venu Collaboration, The XShootU Solar and Stellar Astrophysics Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies High Energy Astrophysical Phenomena Instrumentation and Methods for Astrophysics The Hubble Space Telescope has devoted 500 orbits to observing 250 massive stars with low metallicity in the ultraviolet (UV) range within the framework of the ULLYSES program. The X-Shooting ULLYSES (XShootU) project enhances the legacy value of this UV dataset by providing high-quality optical and near-infrared spectra, which are acquired using the wide-wavelength-coverage X-shooter spectrograph at ESO's Very Large Telescope. XShootU emphasises the importance of combining UV with optical spectra for the consistent determination of key stellar parameters such as effective temperature, surface gravity, luminosity, abundances, and wind characteristics including mass-loss rates as a function of metallicity. Since uncertainties in these parameters have implications across various branches of astrophysics, the data and modelling generated by the XShootU project are poised to significantly advance our understanding of massive stars at low metallicity. This is particularly crucial for confidently interpreting JWST data of the earliest stellar generations, making XShootU a unique resource for comprehending individual spectra of low-metallicity stars. |
| title | X-Shooting ULLYSES: Massive Stars at Low Metallicity |
| topic | Solar and Stellar Astrophysics Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies High Energy Astrophysical Phenomena Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2405.00085 |