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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2402.07045 |
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| _version_ | 1866910326195224576 |
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| author | Rah, Maria Yatman, Manolya Taani, Ali Abushattal, Ahmad A. Mardini, Mohammad K. |
| author_facet | Rah, Maria Yatman, Manolya Taani, Ali Abushattal, Ahmad A. Mardini, Mohammad K. |
| contents | The Milky Way is a spiral galaxy comprising three main components: the Bulge, the Disk, and the Halo. Of particular interest is the Galactic disk, which holds a significant portion of the baryonic matter angular momentum and harbors at least two primary stellar populations: the thin and thick disks. Understanding the formation and evolution of the Galactic disk is crucial for comprehending the origins and development of our Galaxy. Stellar archaeology offers a means to probe the disk's evolution by listening to the cosmological narratives of its oldest and most pristine stars, specifically the metal-poor stars. In this study, we employed accurate photometric metallicity estimates and Gaia Early Data Release 3 astrometry to curate a pure sample of the oldest Galactic stars. This proceeding presents a summary of our primary findings. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_07045 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Unraveling the Origins and Development of the Galactic Disk through Metal-Poor Stars Rah, Maria Yatman, Manolya Taani, Ali Abushattal, Ahmad A. Mardini, Mohammad K. Astrophysics of Galaxies The Milky Way is a spiral galaxy comprising three main components: the Bulge, the Disk, and the Halo. Of particular interest is the Galactic disk, which holds a significant portion of the baryonic matter angular momentum and harbors at least two primary stellar populations: the thin and thick disks. Understanding the formation and evolution of the Galactic disk is crucial for comprehending the origins and development of our Galaxy. Stellar archaeology offers a means to probe the disk's evolution by listening to the cosmological narratives of its oldest and most pristine stars, specifically the metal-poor stars. In this study, we employed accurate photometric metallicity estimates and Gaia Early Data Release 3 astrometry to curate a pure sample of the oldest Galactic stars. This proceeding presents a summary of our primary findings. |
| title | Unraveling the Origins and Development of the Galactic Disk through Metal-Poor Stars |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2402.07045 |