A Massive Hot-Jupiter Companion that Disfavors Giant Planet Formation beyond the Water-ice Line
We report evidence for a brown dwarf companion with mass $3{4}_{-11}^{+30}\,{M}_{{\rm{J}}}$ in the KELT-20 system, in which an ultrahot Jupiter transits an A2-type star. The companion’s properties are inferred from a joint analysis of astrometric accelerations and transit timing variations, and its...
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| Principais autores: | , , , |
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| Format: | Artigo |
| Sprog: | Inglês |
| Udgivet: |
IOP Publishing
2026-01-01
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| Serier: | The Astrophysical Journal Letters |
| Fag: | |
| Online adgang: | https://doi.org/10.3847/2041-8213/ae7570 |
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