• DOI:10.1086/426559
• Corpus ID: 119336794

A Possible Third Component in the L Dwarf Binary System DENIS-P J020529.0−115925 Discovered with the Hubble Space Telescope

@article{Bouy2004APT,
  title={A Possible Third Component in the L Dwarf Binary System DENIS-P J020529.0−115925 Discovered with the Hubble Space Telescope},
  author={H. Bouy and E. L. Mart{\'i}n and Wolfgang Brandner and J{\'e}r{\^o}me Bouvier},
  journal={The Astronomical Journal},
  year={2004},
  volume={129},
  pages={511 - 517}
}

• H. Bouy, E. Martín, +1 author J. Bouvier
• Published 8 October 2004
• Physics
• The Astronomical Journal

We present results showing that the multiple system DENIS-P J020529.0-115925 is likely to be a triple system of very low mass stars and brown dwarfs. The secondary of this previously known binary system shows a clear elongation on six images obtained at six different epochs. Significant residuals remain after point-spread function (PSF) subtraction on these images, which is characteristic of multiplicity and indicates that the secondary is probably a double itself. Dual-PSF fitting shows that the shape of the secondary is consistent with that of a binary system. These measurements show that the probability that DENIS-P J020529.0-115925 is a triple system is very high. The photometric and spectroscopic properties of the system are consistent with the presence of three components, with spectral types L5, L8, and T0.