Spitzer Identification of the Least Massive Known Brown Dwarf with a Circumstellar Disk

  title={Spitzer Identification of the Least Massive Known Brown Dwarf with a Circumstellar Disk},
  author={Kevin L. Luhman and Paola d’Alessio and Nuria Calvet and Lori E. Allen and Lee Hartmann and S. Thomas Megeath and Philip C. Myers and Giovanni G. Fazio},
  journal={The Astrophysical Journal Letters},
  pages={L51 - L54}
Using the Infrared Array Camera (IRAC) aboard the Spitzer Space Telescope, we have obtained mid-infrared photometry of the least massive known brown dwarf in the Chamaeleon I star-forming region. For this young brown dwarf, OTS 44, we have constructed a spectral energy distribution (SED) from 0.8 to 8 μm by combining the measurements at 3.6, 4.5, 5.8, and 8.0 μm from IRAC with ground-based photometry at I, J, H, and K. The resulting SED for OTS 44 exhibits significant excess emission longward… 

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