Open AccessSolar Neighborhood Exoplanet Host Stars within a Galactic Context
Author(s) -
Graeme H. Smith
Publication year - 2021
Publication title -
research notes of the aas
Language(s) - English
Resource type - Journals
ISSN - 2515-5172
DOI - 10.3847/2515-5172/ac283d
Subject(s) - physics , galactic plane , galactic center , stars , exoplanet , metallicity , astrophysics , astronomy , context (archaeology) , planet , planetary system , galaxy , geology , paleontology
Ages, metallicities, and Galactic orbit parameters are considered for those stars with Henry Draper catalog designations that have been discovered to host planetary systems. There are quite a few such stars with above-solar metallicity and ages up to 4 Gyr older than the Sun. Some planet-hosting stars have Galactic orbits that take them within 4 kpc of the Galactic Center, while a substantial fraction attain displacements from the Galactic mid-plane consistent with the thick disk.