cid 307b971f879a9671c8b172f3b69185b57425fa7db07a0576afda65035e0b017a · original · open access · via wikipedia
Title: Brown dwarf Authors: Venue: Wikipedia Year: unknown Canonical: wiki:brown-dwarf URL: https://en.wikipedia.org/wiki/Brown_dwarf Collector: wikipedia OA: true ABSTRACT Brown dwarfs are substellar objects that have more mass than the biggest gas giant planets, but less than the least massive main-sequence stars. Their mass is approximately 13 to 80 times that of Jupiter (MJ)—not big enough to sustain nuclear fusion of hydrogen into helium in their cores, but massive enough to emit some light and heat from deuterium fusion, 2H, an isotope of hydrogen with a neutron as well as a proton, that can undergo fusion at lower temperatures. The most massive ones can fuse lithium (7Li).