SIMBAD references

1999MNRAS.302L..21R - Mon. Not. R. Astron. Soc., 302, L21-L23 (1999/January-1)

Optical spectroscopy of a brown dwarf candidate.


Abstract (from CDS):

We have used the Low-Resolution Imaging Spectrograph on the Keck II telescope to observe the brown dwarf candidate D04. The spectrum matches that of a spectral type M7 dwarf, implying a photospheric temperature of ~ 2600 K. This is consistent with the available (R-I)C and (I-K) colours. If the parallax measured by Hawkins et al. is correct, then the implication is that D04 has a radius of ∼ 0.035 Rodot;, or one-third that of Jupiter. This contradicts the predictions made by current stellar models that electron degeneracy leads to nearly constant radii for stars and brown dwarfs at masses below 0.1 Modot;. We suggest that an equally valid interpretation of the data is that D04 is a VB8 analogue at a distance of ~ 150 pc.

Abstract Copyright: 1998, Royal Astronomical Society

Journal keyword(s): stars: evolution - stars: individual: D04 - stars: low-mass, brown dwarfs

Status at CDS:  

Simbad objects: 9

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:1999MNRAS.302L..21R and select 'bookmark this link' or equivalent in the popup menu


© Université de Strasbourg/CNRS

    • Contact