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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



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ID: 276670.0, MPI für Astronomie / Publikationen_mpia
A possible third component in the L dwarf binary system DENIS-P J020529.0- 115925 discovered with the Hubble Space Telescope
Authors:Bouy, H.; Martín, E. L.; Brandner, W.; Bouvier, J.
Language:English
Date of Publication (YYYY-MM-DD):2005
Title of Journal:The Astronomical Journal
Journal Abbrev.:The Astronomical Journal
Volume:129
Start Page:511
End Page:517
Review Status:Peer-review
Audience:Experts Only
Abstract / Description: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.
Free Keywords:Stars: Binaries: Visual; stars: individual (DENIS-P J020529.0-115925); Stars: Low- Mass; Brown Dwarfs; Techniques: High Angular Resolution
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:URL:http://adsabs.harvard.edu/cgi-bin/nph- bib_query?b... [ID No:1]
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