Pith. sign in

REVIEW 1 cited by

The Pan-Pacific Planet Search VII: The most eccentric planet orbiting a giant star

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 1711.05378 v1 pith:WBW57ZLN submitted 2017-11-15 astro-ph.EP

The Pan-Pacific Planet Search VII: The most eccentric planet orbiting a giant star

Robert A. Wittenmyer , M.I. Jones , Jonathan Horner , Stephen R. Kane , J.P. Marshall , A.J. Mustill , J.S. Jenkins , P.A. Pena Rojas
show 4 more authors
Jinglin Zhao Eva Villaver R.P. Butler Jake Clark
This is my paper
classification astro-ph.EP
keywords planetstarcandidateeccentriceccentricitygiantorbitingstellar
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
0 comments
read the original abstract

Radial velocity observations from three instruments reveal the presence of a 4 M_jup planet candidate orbiting the K giant HD 76920. HD 76920b has an orbital eccentricity of 0.856$\pm$0.009, making it the most eccentric planet known to orbit an evolved star. There is no indication that HD 76920 has an unseen binary companion, suggesting a scattering event rather than Kozai oscillations as a probable culprit for the observed eccentricity. The candidate planet currently approaches to about four stellar radii from its host star, and is predicted to be engulfed on a $\sim$100 Myr timescale due to the combined effects of stellar evolution and tidal interactions.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. The Pan-Pacific Planet Search -- IX. A menagerie of companions orbiting evolved stars

    astro-ph.EP 2026-05 unverdicted novelty 4.0

    Resolves six speculative companions into one giant planet, one eccentric brown dwarf, two low-mass stars, and two stars with no detectable companions.