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astro-ph2002
VLT spectra of the companion candidate Cha Ha 5/cc 1
Ralph Neuhaeuser, Eike Guenther, Wolfgang Brandner
We obtained optical and infrared spectra of Cha Ha 5/cc 1, a faint possibly sub-stellar companion candidate next to the M6-type brown dwarf candidate Cha Ha 5 in Cha I, using FORS1…
astro-ph2002
Rotational Periods of very Young Brown Dwarfs in ChaI
V. Joergens, Matilde Fernandéz, Ralph Neuhäuser +1
A photometric monitoring campaign of brown dwarfs in the ChaI star forming region in the i and R band revealed significant periodic variations of the three M6.5-M7 type brown dwarf…