Kepler-9 TTV data permits broad ranges of planetary masses (b: 31.6-47.1 M⊕; c: 21.8-32.3 M⊕) linked by a tight mass ratio, showing that previous single-mode mass determinations were illusory.
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The Illusory Precision of TTV Masses: Hidden Solutions Behind Kepler-9's Tight Mass Ratio
Kepler-9 TTV data permits broad ranges of planetary masses (b: 31.6-47.1 M⊕; c: 21.8-32.3 M⊕) linked by a tight mass ratio, showing that previous single-mode mass determinations were illusory.