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HD 61005 is a nearby young solar type star that shows a large infrared excessdue to a debris disk. The disk has been recently imaged from ground and space,with indications of several components. Some characteristics of the disksuggest the presence of planetary companions around the star, that remainundetected in deep adaptive optics imaging. For a better understanding of thesystem we aim to refine the determination of the stellar parameters, withemphasis on the stellar age and system orientation. We used ASAS and Hipparcosphotometry and FEROS spectra to determine the rotation period, radial androtational velocity, chromospheric emission, effective temperature, andchemical composition. We find no indication of any misalignment between thestar rotation axis and the disk. The standard age calibrations applied toseveral indicators yield an age close to that of the Pleiades (120 Myr);however the kinematic properties strongly support its membership in the younger(40 Myr) Argus association, which also includes the IC 2391 open cluster.Detailed comparison of the properties of HD 61005 and IC 2391 members showsthat the characteristics of HD 61005 are compatible with membership to theArgus association, once its rather slow rotation is taken into account, becauselithium and other age indicators are somewhat correlated with stellar rotationat a fixed age. We also identify systematic differences between the field andcluster population of the Argus association, which are probably selectioneffects, so we suggest that additional members with slower rotation and loweractivity level are waiting to be identified.

The debris disk host star HD 61005: a member of the Argus Association?