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In this paper we report rst optical reeectance spectra in the wavelength range 3800{9000 A for seven members of the Veritas asteroid family, as determined by Zappall a et al. In addition, we observed also the object 5107 1987 DS 6 , which joins the Veritas family when a slightly more relaxed criterion of selection is adopted. The obtained spectra show a(More)
We study the effect of increasing the masses of the outer planets to speed up the numerical integration of orbital evolutions of fictitious comets subject to planetary close encounters. We usë Opik's theory to model encounters on crossing orbits, and find that the distribution of energy perturbations, and especially of its tails, is changed significantly(More)
We report for the rst time rotationally resolved spectroscopic observations , as well as new photometric and polarimetric measurements, of the large S{type asteroid (6) Hebe, always at near{equatorial aspects. We have found evidence for only minor variations in Hebe's visible re-ectance spectrum over a rotational cycle, comparable to our measurement(More)
– A Low-cost current transducer based on circular array of magnetic sensors is proposed as a valid alternative to traditional current transformers for high-current industrial applications in poly-phase systems of conductors. Since the accuracy of a circular array can be limited by the effects of magnetic fields of nearby phases and by those of eddy currents(More)
The observation potential of the decay B + → K + K + π − with the ATLAS detector at LHC is described in this paper. In the Standard Model this decay mode is highly suppressed, while in models beyond the Standard Model it could be significantly enhanced. To improve the selection of the K + K + π − final state, a charged hadron identification using(More)
Rotationally resolved visible spectroscopy (6000 9500 A) of (7) Iris is presented. Within a few percents, no variation in Iris' visible spectrum over a ro-tational period has been found. These data suggest that the mineralogic properties of Iris' surface are globally homogeneous , although we cannot exclude the presence of some texture and/or albedo(More)