24 citations · 85 across the 6 of their papers we have counts for
6 papers
Resolving the L/T transition binary SDSS J2052-1609 AB
M. B. Stumpf, K. Geißler, H. Bouy +3
Binaries provide empirical key constraints for star formation theories, like the overall binary fraction, mass ratio distribution and the separation distribution. They play a cruci…
The search for planetary mass companions to field brown dwarfs with HST/NICMOS
M. B. Stumpf, W. Brandner, V. Joergens +4
We present the results of a high-resolution spectral differential imaging survey of 12 nearby, relatively young field L dwarfs (<1 Gyr) carried out with HST/NICMOS to search for pl…
2MASS J03105986+1648155AB - A new binary at the L/T transition
M. B. Stumpf, W. Brandner, H. Bouy +2
The transition from the L to the T spectral type of brown dwarfs is marked by a very rapid transition phase, remarkable brightening in the J-band and a higher binary frequency. Des…
Kelu-1 AB - A possible brown dwarf triple system
M. B. Stumpf, W. Brandner, Th. Henning +5
We have monitored the benchmark L dwarf binary Kelu-1AB over the past 3 years to derive improved spectral types and luminosities for the individual components. The astrometric meas…
Binarity at the L/T brown dwarf transition
B. Goldman, H. Bouy, M. R. Zapatero Osorio +3
Current atmospheric models cannot reproduce some of the characteristics of the transition between the L dwarfs with cloudy atmospheres and the T dwarfs with dust-depleted photosphe…
Follow-up observations of binary ultra-cool dwarfs
H. Bouy, E. L. Martin, W. Brandner +12
Astrometric observations of resolved binaries provide estimates of orbital periods and will eventually lead to measurement of dynamical masses. Only a few very low mass star and br…