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Main Authors:	Schorr, Arbel, Binnenfeld, Avraham, Zucker, Shay
Format:	Preprint
Published:	2025
Subjects:	Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics
Online Access:	https://arxiv.org/abs/2502.11139
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author	Schorr, Arbel Binnenfeld, Avraham Zucker, Shay
author_facet	Schorr, Arbel Binnenfeld, Avraham Zucker, Shay
contents	We report the discovery of GJ 2126 b, a highly eccentric (e = 0.85) Jupiter-like planet orbiting its host star every 272.7 days. The planet was detected and characterized using 112 radial velocity (RV) measurements from HARPS (High Accuracy Radial Velocity Planet Searcher), provided by HARPS-RVBank. This planet orbits a low-mass star and ranks among the most eccentric exoplanets discovered, placing it in a unique region of the parameter space of the known exoplanet population. This makes it a valuable addition to the exoplanet demographics, helping to refine our understanding of planetary formation and evolution theories.
format	Preprint
id	arxiv_https___arxiv_org_abs_2502_11139
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	GJ 2126 b: A highly eccentric Jovian exoplanet Schorr, Arbel Binnenfeld, Avraham Zucker, Shay Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics We report the discovery of GJ 2126 b, a highly eccentric (e = 0.85) Jupiter-like planet orbiting its host star every 272.7 days. The planet was detected and characterized using 112 radial velocity (RV) measurements from HARPS (High Accuracy Radial Velocity Planet Searcher), provided by HARPS-RVBank. This planet orbits a low-mass star and ranks among the most eccentric exoplanets discovered, placing it in a unique region of the parameter space of the known exoplanet population. This makes it a valuable addition to the exoplanet demographics, helping to refine our understanding of planetary formation and evolution theories.
title	GJ 2126 b: A highly eccentric Jovian exoplanet
topic	Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics
url	https://arxiv.org/abs/2502.11139

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