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   PR # 11010
    It is very important to observe star forming region in the hard X-ray
    band because the hard X-ray is transparent even in dark clouds. The
    Chamaeleon clouds are suitable for X-ray study of pre main sequence
    stars because of their proximity (about 140pc) and relative small
    size. Main purpose of mapping observations of the cloud is to make
    clear the mechanism of star formation and star evolution. Scientific
    objectives are summarized as follows. 1) Search for pre main sequence
    stars embedded deeply in the cloud. 2) Determination of the spectral
    parameters (temperature, abundance). 3) When do the X-ray activities
    start? X-ray activities is connected with their surface magnetic
    activities.

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