Initial Results from the Palomar Adaptive Optics Survey of Young Solar-Type Stars: A Brown Dwarf and Three Stellar Companions

  title={Initial Results from the Palomar Adaptive Optics Survey of Young Solar-Type Stars: A Brown Dwarf and Three Stellar Companions},
  author={Stanimir A. Metchev and L. A. Hillenbrand},
  journal={The Astrophysical Journal},
  pages={1330 - 1346}
We present first results from the Palomar Adaptive Optics Survey of Young Stars conducted at the Hale 5 m telescope. Through direct imaging we have discovered a brown dwarf and two low-mass stellar companions to the young solar-type stars HD 49197, HD 129333 (EK Dra), and V522 Per and confirmed a previously suspected companion to RX J0329.1+0118 (Sterzik et al.), at respective separations of 0.″95 (43 AU), 0.″74 (25 AU), 2.″09 (400 AU), and 3.″78 (380 AU). Physical association of each binary… 
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