Spectroscopy of Taurus cloud brown dwarf candidates

John Stauffer, Terry Herter, Donald Hamilton, George H. Rieke, Marcia J Rieke, Ron Probst, William Forrest

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We have obtained low-dispersion optical spectra for six objects and infrared spectra for two objects originally proposed to be brown dwarf members of the Taurus cloud population. None of the brown dwarf candidates shows definite Hα emission, and only two objects display molecular absorption bands. In one case, the weak TiO bands and Hα emission indicate a spectral type of K7-M0e, but these features may be caused by contamination from the nearby, bright primary HBC 370. In the other object, the TiO bands are definitely present but relatively weak indicating a spectral type of about M1-M2. These characteristics are unlike those expected for brown dwarfs; thus it appears that the brown dwarf candidates identified by Forrest et al. are much more likely to be heavily reddened background G or K field stars.

Original languageEnglish (US)
JournalAstrophysical Journal
Volume367
Issue number1 PART 2
StatePublished - Jan 20 1991

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spectroscopy
molecular absorption
star distribution
optical spectrum
contamination
infrared spectra
absorption spectra

Keywords

  • Stars: formation
  • Stars: late-type
  • Stars: low-mass

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

Stauffer, J., Herter, T., Hamilton, D., Rieke, G. H., Rieke, M. J., Probst, R., & Forrest, W. (1991). Spectroscopy of Taurus cloud brown dwarf candidates. Astrophysical Journal, 367(1 PART 2).

Spectroscopy of Taurus cloud brown dwarf candidates. / Stauffer, John; Herter, Terry; Hamilton, Donald; Rieke, George H.; Rieke, Marcia J; Probst, Ron; Forrest, William.

In: Astrophysical Journal, Vol. 367, No. 1 PART 2, 20.01.1991.

Research output: Contribution to journalArticle

Stauffer, J, Herter, T, Hamilton, D, Rieke, GH, Rieke, MJ, Probst, R & Forrest, W 1991, 'Spectroscopy of Taurus cloud brown dwarf candidates', Astrophysical Journal, vol. 367, no. 1 PART 2.
Stauffer J, Herter T, Hamilton D, Rieke GH, Rieke MJ, Probst R et al. Spectroscopy of Taurus cloud brown dwarf candidates. Astrophysical Journal. 1991 Jan 20;367(1 PART 2).
Stauffer, John ; Herter, Terry ; Hamilton, Donald ; Rieke, George H. ; Rieke, Marcia J ; Probst, Ron ; Forrest, William. / Spectroscopy of Taurus cloud brown dwarf candidates. In: Astrophysical Journal. 1991 ; Vol. 367, No. 1 PART 2.
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