HST/NICMOS observations of a proto-brown dwarf candidate

D. Apai, L. V. Tóth, T. Henning, R. Vavrek, Z. Kovács, D. Lemke

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9 Scopus citations


We present deep HST/NICMOS observations peering through the outflow cavity of the protostellar candidate IRAS 04381+2540 in the Taurus Molecular Cloud-1. A young stellar object as central source, a jet and a very faint and close (0.6″) companion are identified. The primary and the companion have similar colours, consistent with strong reddening. We argue that the companion is neither a shock-excited knot nor a background star. The colour/magnitude information predicts a substellar upper mass limit for the companion, but the final confirmation will require spectroscopic information. Because of its geometry, young age and its rare low-mass companion, this system is likely to provide a unique insight into the formation of brown dwarfs.

Original languageEnglish (US)
Pages (from-to)L33-L36
JournalAstronomy and astrophysics
Issue number2
StatePublished - Apr 1 2005



  • Binaries: close
  • Planetary systems: protoplanetary disks
  • Stars: formation
  • Stars: low-mass, brown dwarfs stars: Pre-main sequence

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Apai, D., Tóth, L. V., Henning, T., Vavrek, R., Kovács, Z., & Lemke, D. (2005). HST/NICMOS observations of a proto-brown dwarf candidate. Astronomy and astrophysics, 433(2), L33-L36. https://doi.org/10.1051/0004-6361:200500098