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We present the first resolved image of the debris disk around the 16+/-8 Myrold star, HD 114082. The observation was made in the H-band using the SPHEREinstrument. The star is at a distance of 92+/-6 pc in the Lower Centaurus Cruxassociation. Using a Markov Chain Monte Carlo analysis, we determined that thedebris is likely in the form of a dust ring with an inner edge of 27.7+2.8/-3.5au, position angle -74+0.5/-1.5 deg, and an inclination with respect to theline of sight of 6.7+3.8/-0.4 deg. The disk imaged in scattered light has asurface density declining with radius like ~r^(-4), steeper than expected forgrain blowout by radiation pressure. We find only marginal evidence (2 sigma)of eccentricity, and rule out planets more massive than 1.0 Mjup orbitingwithin 1 au of the ring's inner edge, since such a planet would have disruptedthe disk. The disk has roughly the same fractional disk luminosity(Ldisk/L*=3.3x10^(-3)) as HR4796A and Beta Pictoris, however it was notdetected by previous instrument facilities most likely because of its smallangular size (radius~0.4"), low albedo (~0.2) and low scattering efficiency farfrom the star due to high scattering anisotropy. With the arrival of extremeadaptive optics systems like SPHERE and GPI, the morphology of smaller, fainterand more distant debris disks are being revealed, providing clues toplanet-disk interactions in young protoplanetary systems.

The SHARDDS survey: first resolved image of the HD114082 debris disk in Lower Centaurus Crux with SPHERE