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Discovery of seven T Tauri stars and a brown dwarf candidate in the nearby TW Hydrae Association. Abstract We report the discovery of five T Tauri star systems , two of which are resolved binaries, in the vicinity of the nearest known region of recent star formation , the TW Hydrae Association. The newly discovered systems display the same signatures of(More)
Directly detecting thermal emission from young extrasolar planets allows measurement of their atmospheric compositions and luminosities, which are influenced by their formation mechanisms. Using the Gemini Planet Imager, we discovered a planet orbiting the ~20-million-year-old star 51 Eridani at a projected separation of 13 astronomical units. Near-infrared(More)
  • D Kaisler, B Zuckerman, I Song, B A Macintosh, A J Weinberger, E E Becklin +2 others
  • 2003
HD 199143 and HD 358623 (BD-17 • 6128) are two sets of binary stars which are physically associated and 48 pc from Earth. We present heliocentric radial velocities and high lithium abundances which establish these stars as members of the ∼12 Myr-old β Pictoris Moving Group. We also present mid-IR photometric measurements which show no firm evidence for warm(More)
– 2 – ABSTRACT A 2.2 µm speckle imaging survey of 167 bright (K < 8.5 mag) Hyades members reveals a total of 33 binaries with separations spanning 0. ′′ 044 to 1. ′′ 34 and magnitude differences as large as 5.5 mag. Of these binaries, 13 are new detections and an additional 17 are now spatially resolved spectroscopic binaries, providing a sample from which(More)
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