• Title of article

    V1432 Aql: A polar or an intermediate polar?

  • Author/Authors

    Singh، K. P. نويسنده , , Rana، V. R. نويسنده ,

  • Issue Information
    روزنامه با شماره پیاپی سال 2003
  • Pages
    -230
  • From page
    231
  • To page
    0
  • Abstract
    We present evidence for a spin period of 4070 s in a magnetic cataclysmic variable V1432 Aql, classified as a polar. The evidence is based on the analysis of archival X-ray data obtained from a 25 ks long and uninterrupted observations with XMMNewton. We also detect modulation of the X-ray flux with the orbital period, various harmonics of the spin period, and sidebands due to beating of the spin period with the orbital period. The energy-dependent light curves and hardness ratios show a very complex behaviour with both the spin phase and the orbital phase, indicating the presence of multiple absorbers of different densities. The observed characteristics suggest the presence of a disk in the system and accretion via a disk-overflow mechanism as is commonly observed in intermediate polars.
  • Keywords
    stars , binaries , cataclysmic variables , accretion , close , V1432 Aql , accretion disks , X-rays , Individual , novae
  • Journal title
    Astronomy and Astrophysics
  • Serial Year
    2003
  • Journal title
    Astronomy and Astrophysics
  • Record number

    78124