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  1. No Access

    Chapter and Conference Paper

    The Orbital Period of the Galactic Z Source Sco X-2

    Sco X-2 is a bright Galactic bulge Z source, whose optical counterpart was discovered in 1990 [?], and observed to exhibit strong Hα emission. We have therefore obtained spectroscopic data in order to determin...

    K. A. Southwell, J. Casares, P. A. Charles in Cataclysmic Variables and Related Objects (1996)

  2. No Access

    Chapter and Conference Paper

    Optical variability of the LMC supersoft source RX J0513.9-6951

    We present optical spectroscopy and photometry of the LMC supersoft source (SSS) RX J0513.9-6951. Through the exceptional monitoring capabilities of the MACHO project, we show the optical history of this objec...

    K. A. Southwell, M. Livio, P. A. Charles, W. Sutherland… in Supersoft X-Ray Sources (1996)