Direct Imaging of Sub-Stellar Companions around Young Stars

Details Direct Imaging of Sub-Stellar Companions around Young Stars Direct Imaging of Sub-Stellar Companions around Young Stars

Mar 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006msngr.123...25n&link_type=abstract

The Messenger, volume 123, page 25

Physics

Optics

Scientific paper

In several years of direct imaging searches of sub-stellar companions around young nearby stars, first with plain and speckle imaging, now with Adaptive Optics (AO), we have found several brown dwarf companions - and most recently also an object with a mass estimate well below 13 Jupiter masses, so that it is probably a giant planet imaged directly, GQ Lup b. We were able to confirm all these companion candidates by common proper motion and spectroscopy showing a cool spectral type of late-M or early-L. They are only a few million years old and allow us to study the formation of planets and brown dwarfs observationally.

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