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A NEW SUB-STELLAR COMPANION AROUND THE YOUNG STAR HD 284149

Research output: Contribution to journalArticle

  • Mariangela Bonavita
  • Sebastian Daemgen
  • Silvano Desidera
  • Ray Jayawardhana
  • Markus Janson
  • David Lafreniere

Related Edinburgh Organisations

Original languageEnglish
Article number40
Number of pages5
JournalAstrophysical Journal Letters
Volume791
Issue number2
DOIs
Publication statusPublished - 20 Aug 2014

Abstract

Even though only a handful of sub-stellar companions have been found via direct imaging, each of these discoveries has had a tremendous impact on our understanding of the star formation process and the physics of cool atmospheres. Young stars are prime targets for direct imaging searches for planets and brown dwarfs due to the favorable brightness contrast expected at such ages and also because it is often possible to derive relatively good age estimates for these primaries. Here we present the direct imaging discovery of HD 284149 b, a 18-50 M-Jup companion at a projected separation of 400 AU from a young (25(10)(+25) Myr) F8 star, with which it shares common proper motion.

    Research areas

  • brown dwarfs, instrumentation: adaptive optics, methods: observational, planetary systems, stars: individual (HD 284149), stars: pre-main sequence, SOLAR-TYPE STARS, TAURUS-AURIGA, UPPER SCORPIUS, BROWN DWARFS, EVOLUTIONARY MODELS, HR 8799, MASS, PLANET, DISCOVERY, CHAMELEON

ID: 21479400