Archival RV and astrometric data plus three-body simulations constrain an unseen outer perturber in the GJ 436 system to sub-Jovian masses at a_c ≳ 6.8 AU, supporting Kozai-Lidov migration as the source of the hot Neptune's polar eccentric orbit.
Title resolution pending
5 Pith papers cite this work. Polarity classification is still indexing.
fields
astro-ph.EP 5years
2026 5representative citing papers
Tentative evidence for a super-Jupiter at 15-100 AU or brown dwarf at 20-170 AU in 51 Pegasi from RV curvature, but the signal is likely driven by Lick/Hamilton instrument drift.
Giant planet multiplicity is low, with 10.6% and 15.8% of Sun-like stars hosting at least one giant planet within 10 au across the two surveys, mostly as singles, inconsistent with scattering models.
New transit data for WASP-11 b over 16 years shows no orbital decay or TTV signals from other planets, with a transmission spectrum exhibiting a strong Rayleigh scattering slope possibly from the atmosphere or contamination.
citing papers explorer
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Observational and Dynamical Constraints on an Unseen Outer Perturber in the GJ 436 Hot Neptune System
Archival RV and astrometric data plus three-body simulations constrain an unseen outer perturber in the GJ 436 system to sub-Jovian masses at a_c ≳ 6.8 AU, supporting Kozai-Lidov migration as the source of the hot Neptune's polar eccentric orbit.
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An Outer Giant Planet or Brown Dwarf in the 51 Pegasi System?
Tentative evidence for a super-Jupiter at 15-100 AU or brown dwarf at 20-170 AU in 51 Pegasi from RV curvature, but the signal is likely driven by Lick/Hamilton instrument drift.
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The Intrinsic Multiplicity Distribution of Exoplanets Revealed from the Radial Velocity Method. II. Constraints on Giant Planet Multiplicity from Different Surveys
Giant planet multiplicity is low, with 10.6% and 15.8% of Sun-like stars hosting at least one giant planet within 10 au across the two surveys, mostly as singles, inconsistent with scattering models.
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Investigation of Transit Timing and an Optical Transmission Spectrum of the Hot Jupiter WASP-11 b
New transit data for WASP-11 b over 16 years shows no orbital decay or TTV signals from other planets, with a transmission spectrum exhibiting a strong Rayleigh scattering slope possibly from the atmosphere or contamination.
- The NUV transit of XO-3 b