Discovery of an [Fe/H] ∼ −4.8 Star in Gaia XP Spectra
We report on the discovery of GDR3_526285 (Gaia DR3 Source ID 5262850721755411072), a star with [Fe/H] = −4.82 ± 0.25 and one of the lowest metal (atomic number > 2) mass fractions ever found ( Z _GDR3 _ _526585 ≲ 1.0 × 10 ^−6 ). We first identified it as an ultra-metal-poor (UMP; [Fe/H] < −4...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2025-01-01
|
| Series: | The Astrophysical Journal Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/2041-8213/adf196 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|