HST/NICMOS observations of a proto-brown dwarf candidate

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

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

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)
JournalAstronomy and Astrophysics
Volume433
Issue number2
DOIs
StatePublished - Apr 2005

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color
Infrared Astronomy Satellite
molecular clouds
cavity
outflow
shock
geometry
stars
cavities
young

Keywords

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

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

HST/NICMOS observations of a proto-brown dwarf candidate. / Apai, Daniel; Tóth, L. V.; Henning, T.; Vavrek, R.; Kovács, Z.; Lemke, D.

In: Astronomy and Astrophysics, Vol. 433, No. 2, 04.2005.

Research output: Contribution to journalArticle

Apai, Daniel ; Tóth, L. V. ; Henning, T. ; Vavrek, R. ; Kovács, Z. ; Lemke, D. / HST/NICMOS observations of a proto-brown dwarf candidate. In: Astronomy and Astrophysics. 2005 ; Vol. 433, No. 2.
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