641 citations · 828 across the 9 of their papers we have counts for
15 papers · 1 filter
Shape parameters of Galactic open clusters
N. V. Kharchenko, P. Berczik, M. I. Petrov +4
(abridged) In this paper we derive observed and modelled shape parameters (apparent ellipticity and orientation of the ellipse) of 650 Galactic open clusters identified in the ASCC…
Extremely faint high proper motion objects from SDSS stripe 82 - Optical classification spectroscopy of about 40 new objects
R. -D. Scholz, J. Storm, G. R. Knapp +1
(abridged) Deep multi-epoch Sloan Digital Sky Survey data in a 275 square degrees area along the celestial equator (SDSS stripe 82 = S82) allowed us to search for extremely faint (…
Trigonometric parallaxes of ten ultracool subdwarfs
E. Schilbach, S. Roeser, R. -D. Scholz
We measured absolute trigonometric parallaxes and proper motions with respect to many background galaxies for a sample of ten ultracool subdwarfs. The observations were taken in th…
Dynamical masses for the nearest brown dwarf binary: Epsilon Indi Ba, Bb
C. V. Cardoso, M. J. McCaughrean, R. R. King +6
We present preliminary astrometric results for the closest known brown dwarf binary to the Sun: Epsilon Indi Ba, Bb at a distance of 3.626 pc. Via ongoing monitoring of the relativ…
Epsilon Indi Ba, Bb: a spectroscopic study of the nearest known brown dwarfs
Robert R. King, Mark J. McCaughrean, Derek Homeier +3
The discovery of Epsilon Indi Ba and Bb, a nearby binary brown dwarf system with a main-sequence companion, allows a concerted campaign to characterise the physical parameters of t…
Ultracool Subdwarfs: The Halo Population Down to the Substellar Limit
Adam J. Burgasser, Sebastien Lepine, Nicolas Lodieu +5
Ultracool subdwarfs are low luminosity, late-type M and L dwarfs that exhibit spectroscopic indications of subsolar metallicity and halo kinematics. Their recent discovery and ongo…