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A. Krishnamurthi, J. L. Linsky (JILA, Univ. of Colorado), M. Gagne (West Chester University)
We present first results from a 60-ks image of the core of the Pleiades cluster with ACIS-I on the Chandra X-ray observatory. The observations were obtained as part of the Cycle-1 GTO observations. The ACIS data will be used with recently derived rotational periods to test rotation-activity relations at the low end of the zero-age main sequence. The ACIS spectra and light curves will also allow modelling of X-ray flares and coronal heating for these young, active stars.