Direct detection of exo-planets: GQ Lupi
  We present a comparison of our VLT/NACO K-band spectrum of the GQ Lupi companion with the new GAIA-dusty model atmosphere grid for T=2000 and 2900 K and log g from 0 to 4. Then, we discuss the mass estimate for GQ Lup companion. 
Ralph Neuhaeuser (AIU Jena), Eike Guenther (TLS Tautenburg), Peter   Hauschildt (Sternwarte Hamburg)