SEEDS Direct Imaging of the RV-Detected Companion to V450
Draft version September 5, 2018 A Preprint typeset using LTEX style emulateapj v. 01/23/15 SEEDS DIRECT IMAGING OF THE RV-DETECTED COMPANION TO V450 ANDROMEDAE, AND CHARACTERIZATION OF THE SYSTEM. K. G. He lminiak1,2, M. Kuzuhara3,4,5, K. Mede6, T. D. Brandt7,8, R. Kandori4, T. Suenaga4,9, N. Kusakabe5, N. Narita5,4,9,6, J. C. Carson10, T. Currie1, T. Kudo1, J. Hashimoto5, L. Abe11, E. Akiyama4, W. Brandner12, M. Feldt12, M. Goto13, C. A. Grady14,15,16, O. Guyon1,17, Y. Hayano1, M. Hayashi4, S. S. Hayashi1,9, T. Henning12, K. W. Hodapp18, M. Ishii4, M. Iye4, M. Janson19, G. R. Knapp20, J. Kwon6, T. Matsuo21, M. W. McElwain14, S. Miyama22, J.-I. Morino4, A. Moro-Martin12,23, T. Nishimura1, T. Ryu9,4, T.-S. Pyo1, E. Serabyn24, H. Suto4,5, R. Suzuki4, Y. H. Takahashi6,4, M. Takami25, N. Takato1, H. Terada4, C. Thalmann26, E. L. Turner20,27, M. Watanabe28, J. Wisniewski29, T. Yamada30, H. Takami4, T. Usuda4, and M. Tamura6,4,5 Draft version September 5, 2018 ABSTRACT We report the direct imaging detection of a low-mass companion to a young, moderately active star V450 And, that was previously identified with the radial velocity method. The companion was found in high-contrast images obtained with the Subaru Telescope equipped with the HiCIAO camera and AO188 adaptive optics system. From the public ELODIE and SOPHIE archives we extracted available high-resolution spectra and radial velocity (RV) measurements, along with RVs from the Lick planet search program. We combined our multi-epoch astrometry with these archival, partially unpublished RVs, and found that the companion is a low-mass star, not a brown dwarf, as previously suggested.
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