Near-Infrared Imaging Survey of Faint Companions around Young Dwarfs in the Pleiades Cluster
arXiv:1010.4734 · doi:10.1088/1674-4527/11/3/007
Abstract
We conducted a near-infrared imaging survey of 11 young dwarfs in the Pleiades cluster using the Subaru Telescope and the near-infrared coronagraph imager. We found 10 faint point sources, with magnitudes as faint as 20 mag in the K-band, around 7 dwarfs. Comparison with Spitzer archive images revealed that a pair of the faint sources around V 1171 Tau are very red in the infrared wavelengths, indicative of very low-mass young stellar objects. However, the results of our follow-up proper motion measurements implied that the central star and the faint sources do not share common proper motions, suggesting that they are not physically associated.
13 pages. Accepted for publication in Research in Astronomy and Astrophysics
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