A Second Candidate Magnetic Helium Core White Dwarf and 3 Other Variable White Dwarfs in the Globular Cluster NGC 6397
Using archival Hubble Space Telescope observations, we report the discovery of four variable low-mass white dwarfs (WDs; 0.18 M _⊙ ≤ M ≤ 0.5 M _⊙ ) in the globular cluster NGC 6397. One source exhibits a periodic optical modulation of 5.21 ± 0.02 hr, which we interpret as potentially due to the rota...
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| Główni autorzy: | , , , , , , , |
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| Format: | Artigo |
| Język: | Inglês |
| Wydane: |
IOP Publishing
2025-01-01
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| Seria: | The Astrophysical Journal |
| Hasła przedmiotowe: | |
| Dostęp online: | https://doi.org/10.3847/1538-4357/ada144 |
| Etykiety: |
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