DESI Observations of the Andromeda Galaxy: Revealing the Immigration History of Our Nearest Neighbor
We present Dark Energy Spectroscopic Instrument (DESI) observations of the inner halo of M31, which reveal the kinematics of a recent merger—a galactic immigration event—in exquisite detail. Of the 11,416 sources studied in 3.75 hr of on-sky exposure time, 7438 are M31 sources with well-measured rad...
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| Principais autores: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
IOP Publishing
2023-01-01
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| coleção: | The Astrophysical Journal |
| Assuntos: | |
| Acesso em linha: | https://doi.org/10.3847/1538-4357/aca5f8 |
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