143 citations · 145 across the 2 of their papers we have counts for
3 papers
astro-ph2006★ 2 cited
Search for Giant Planets around White Dwarfs with HST, Spitzer, and VLT
S. Friedrich, H. Zinnecker, S. Correia +3
For the last three years we have performed a survey for young (<3 Gyrs) giant planets around nearby white dwarfs with HST, Spitzer, and VLT. Direct HST/NICMOS imaging of the seven…
astro-ph2006★ 143 cited
A VLT/NACO Survey for Triple and Quadruple Systems among Visual Pre-Main Sequence Binaries
S. Correia, H. Zinnecker, Th. Ratzka +1
This paper describes a systematic search for high-order multiplicity among wide visual Pre-Main Sequence (PMS) binaries. We conducted an Adaptive Optics survey of a sample of 58 PM…
astro-ph2004
SSSPM J1444-2019: an extremely high proper motion, ultracool subdwarf
R. -D. Scholz, N. Lodieu, M. J. McCaughrean
We present the discovery of a new extreme high proper motion object (3.5 arcsec/year) which we classify as an ultracool subdwarf with [M/H] = -0.5. It has a formal spectral type of…