Characterization of the long-period companions of the exoplanet host stars: HD196885, HD1237 and HD27442

G. Chauvin, A. -M. Lagrange, S. Udry +1

We present the results of near-infrared, follow-up imaging and spectroscopic observations at VLT, aimed at characterizing the long-period companions of the exoplanet host stars HD1…