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- W4377009752 abstract "Observational studies have identified several sub-structures in different regions of the Magellanic Clouds, the nearest pair of interacting dwarf satellites of the Milky Way. By studying the metallicity of the sources in these sub-structures, we aim to shed light on the possible origin of these sub-structures. Spectroscopic metallicities exist only for a few thousand sources, mostly giant stars located in specific regions of the galaxies. These metallicities come from different instruments at various spectral resolutions, and systematic uncertainties hamper comparisons and draw firm conclusions about their origin. The third data release of textit{Gaia} has provided us with $sim$ 0.17 million XP spectra of the different stellar populations in the SMC alone as faint as $sim$ 18 mags in the G band, which are spread across $sim$ 10$^circ$ from the SMC centre. We aim to determine the metallicities of these sources based on synthetic Str{o}mgren photometry derived from XP spectra and produce a high-resolution metallicity map of the SMC. Our metallicity gradient estimate of the SMC turns out to be --0.062 $pm$ 0.009 dex/deg. This is comparable with the previous estimates, which also validate our method of metallicity estimation. We aim to apply this method to other stellar populations and to the LMC to create a high-resolution metallicity map of the Magellanic Clouds." @default.
- W4377009752 created "2023-05-19" @default.
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- W4377009752 date "2023-05-16" @default.
- W4377009752 modified "2023-10-16" @default.
- W4377009752 title "Str{o}mgren photometric metallicity of the Small Magellanic Cloud stars using Gaia DR3-XP spectra" @default.
- W4377009752 doi "https://doi.org/10.48550/arxiv.2305.09392" @default.
- W4377009752 hasPublicationYear "2023" @default.
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