Over the past year, we have conducted a multi-faceted program to investigate the origin and early evolution of brown dwarfs. Using high-resolution Keck optical spectra of ~30 objects near and below the sub-stellar boundary in several star-forming regions, we present compelling evidence for a T Tauri-like accretion phase in young brown dwarfs. Our systematic study of infrared L'-band (3.8-micron) disk excess in ~50 spectroscopically confirmed young very low mass objects reveal that a significant fraction of brown dwarfs harbor disks at a very young age. Their inner disk lifetimes do not appear to be vastly different from those of disks around T Tauri stars. Taken together, our findings are consistent with a common origin for most low-mass stars, brown dwarfs and isolated planetary mass objects.
CITATION STYLE
Jayawardhana, R., Mohanty, S., Basri, G., Ardila, D. R., Stelzer, B., & Haisch, K. E. (2003). Observational Clues to Brown Dwarf Origins. In Open Issues in Local Star Formation (pp. 251–258). Springer Netherlands. https://doi.org/10.1007/1-4020-2600-5_30
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