Reclassification of Jovian Exoplanetary Objects as Fusion Hot Sub Dwarfs (FHSD)

Read full text
Authors: Matt Webb
Cited by: 0

Abstract

Analysis of confirmed Jovian exoplanetary objects reveals a subset exhibiting thermal signatures of internal heat exceeding heat received from host stars, yet possessing insufficient mass (< 13 MJ ) for sustained hydrogen fusion. Current classification schemes conflate these objects with gas giants despite fundamentally different thermodynamic states. This study proposes reclassification of such objects as Fusion Hot Sub Dwarfs (FHSD)—a distinct category from gas giants and brown dwarfs. We present a catalog of 22 objects meeting FHSD criteria, compiled from NASA Exoplanet Archive, ESO Science Archive, and Gaia DR3/DR4 data. There are many reclassifications still available, this represents the top candidates.

Fields of Study & Subjects

Stellar planetary and galactic studies Astronomy and Astrophysical Research Scientific Research and Discoveries

Publication details

Journal / source
Zenodo (CERN European Organization for Nuclear Research)
Publication date
3 January 2026
Language
EN
Document type
Preprint