Brown dwarfs in young stellar clusters

Journal Article · Mon Jul 01 04:00:00 EDT 1991 · Astrophysical Journal; (United States)

DOI:https://doi.org/10.1086/186079· OSTI ID:5262074

Stringfellow, G S ^[1]

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1. Mount Stromlo and Siding Spring Observatories, Canberra (Australia)

The present calculations of the early evolution of brown dwarfs and very low mass stars (LMSs) yield isochrones spanning 0.01-0.2 solar masses for ages in the 1 to 300 million year range. Since the brown dwarfs remain sharply segregated in T(eff) from LMSs for ages of less than 100 million years, it follows that for coeval populations of known age, a domain exists in the H-R diagram in which only brown dwarfs exist. These theoretical results are compared with recent observations of the Pleiades brown dwarf candidates, using two new sets of color-T(eff) transformations. Both sets yield consistent interpretations. 17 refs.

• OSTI ID: 5262074
• Journal Information: Astrophysical Journal; (United States), Journal Name: Astrophysical Journal; (United States) Vol. 375; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AGE ESTIMATION
COMPARATIVE EVALUATIONS
DIAGRAMS
DWARF STARS
EVALUATION
HERTZSPRUNG-RUSSELL DIAGRAM
LUMINOSITY
MASS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
STAR CLUSTERS
STAR EVOLUTION
STARS