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We have carried out a direct and differential imaging search for sub-stellarcompanions to eps Indi A using the adaptive optics system NACO at the ESO VLT.The observations were carried out in September 2004 with NACO/SDI as well aswith NACO's S27 camera in the H and Ks filters. The SDI data cover an area of\~2.8" around eps Indi A. No detection was achieved in the inner neighbourhooddown to 53 Mj (5 sigma confidence level) at a separation > 0.4" (1.45 AU) anddown to 21 Mj for separations > 1.3" (4.7 AU). To cover a wider field of view,observations with the S27 camera and a coronagraphic mask were obtained. Wedetected a faint source at a separation of (7.3 +/- 0.1)" and a position angleof (302.9 +/- 0.8) degree. The photometry for the candidate companion yieldsm(H)=(16.45 +/- 0.04)mag and m(Ks) = (15.41 +/- 0.06)mag, respectively. Thosemagnitudes and the resulting color (H-Ks) = (1.04 +/- 0.07)mag fit best to aspectral type of L5 - L9.5 if it is bound. Observations done with HST/NICMOS byM. Endl have shown the source to be a background object.Comment: 6 pages, 5 figures, accepted by A&

A direct and differential imaging search for sub-stellar companions to ϵ Indi A