A new sub-stellar companion around the young star HD 284149

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 Myr) F8 star, with which it shares common proper motion

5 pages, 3 figures

References in corpus (6)

• Direct Imaging of Multiple Planets Orbiting the Star HR 8799
• The Gemini Deep Planet Survey -- GDPS
• Discovery of Two T Dwarf Companions with the Spitzer Space Telescope
• Direct Imaging and Spectroscopy of a Planetary Mass Candidate Companion to a Young Solar Analog
• The Palomar/Keck Adaptive Optics Survey of Young Solar Analogs: Evidence for a Universal Companion Mass Function
• Discovery of a Young Substellar Companion in Chamaeleon

Cited by in corpus (6)

• Assessing the C/O Ratio Formation Diagnostic: A Potential Trend with Companion Mass
• Sub-stellar Companions and Stellar Multiplicity in the Taurus Star-Forming Region
• The Dynamical Fate of Self-Gravitating Disc Fragments After Tidal Downsizing
• Orbiting a binary: SPHERE characterisation of the HD 284149 system
• PeX 1. Multi-spectral expansion of residual speckles for planet detection
• The SPHERE view of multiple star formation