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4 Result(s)

within J. Beckman Remove this filter Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics) Remove this filter

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  1. No Access

    Article

    A Search for Warm Neutral Gas Associated with the Giant HII Region NGC 604

    The characteristics of the halo gas and its interaction with the galactic disk in spiral galaxies are poorly known; this is particularly true for the warm neutral gas associated with HVCs and galactic chimneys...

    A.I. Gómez de Castro, L. Sanz, J. Beckman in Astrophysics and Space Science (2000)

  2. No Access

    Article

    Evidence for leading spiral arm formation in NGC 7479

    Azimuthal profiles of the spiral NGC 7479 in theB andI passbands have been analyzed using a subset of the azimuthal parameters proposed by Beckman and Cepa (1989), to look for the presence of shock fronts in the ...

    J. Beckman, J. Cepa in Astrophysics and Space Science (1989)

  3. No Access

    Article

    Differential efficiency of massive star formation in NGC 628

    The efficiency ratio of massive star formation in the arms of the spiral NGC 628 to that in the interarm region has been determined from the sizes and positions of itsHii regions following the method described in...

    J. Cepa, J. Beckman in Astrophysics and Space Science (1989)

  4. No Access

    Article

    A photometric study of the double ring structure of NGC 4736

    In this study we present photometric results for the galaxy NGC 4736: infrared and visible profiles. After a careful correction for the extinction within the galaxy based on measured neutral gas surface densit...

    C. Muñoz-Tuñon, M. Prieto, J. Beckman, J. Cepa in Astrophysics and Space Science (1989)