... X-ray[*]
Based on observations acquired with ESO telescopes at Paranal, under programs 275.D-5022 and 075.D-0787.
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... IRAF[*]
IRAF is distributed by the National Optical Astronomy Observatories, which are operated by the Association of Universities for Research in Astronomy, Inc., under cooperative agreement with the National Science Foundation.
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Copyright ESO 2006