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Time-resolved optical spectroscopy of AM Her X-ray sources

  • Magnetic Cataclysmic Systems
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Abstract

We present high-time resolution spectroscopy of two AM Her sources E1405-451 and E1013-477. For E1405-451, the Balmer emission lines profiles can be divided into a narrow component and a broad one. The amplitudes of the radial velocity curves of these components are respectively 265±30 km/s and 390±50 km/s. The orientation of the column determined from polarimetry is not compatible with the broad component being formed in the lowest parts of the column. Photometric and spectroscopic results on E1013-477 do not confirm the previous reported 103 min. period. Rapid variability (<1.5h) as well as long term modulation (>3.3h) is present in these data.

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Authors and Affiliations

  1. Observatoire de Meudon, France

    M. Mouchet

  2. Astronomical Institute, University of Amsterdam, Netherlands

    S. F. Van Amerongen

  3. Service d'Astrophysique, C.E.N. Saclay, France

    J. M. Bonnet-Bidaud

  4. EXOSAT Observatory, ESOC, Darmstadt, Germany

    J. P. Osborne

Authors
  1. M. Mouchet
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  2. S. F. Van Amerongen
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  3. J. M. Bonnet-Bidaud
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  4. J. P. Osborne
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Mouchet, M., Van Amerongen, S.F., Bonnet-Bidaud, J.M. et al. Time-resolved optical spectroscopy of AM Her X-ray sources. Astrophys Space Sci 131, 613–624 (1987). https://doi.org/10.1007/BF00668146

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  • DOI: https://doi.org/10.1007/BF00668146

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