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Echo Tomography of Sco X-1 using Bowen Fluorescence Lines

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 نشر من قبل Jorge Casares
 تاريخ النشر 2005
  مجال البحث فيزياء
والبحث باللغة English
 تأليف J. Casares




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We present preliminary results of a simultaneous X-ray/optical campaign of the prototypical LMXB Sco X-1 at 1-10 Hz time resolution. Lightcurves of the high excitation Bowen/HeII emission lines were obtained through narrow interference filters with ULTRACAM, and these were cross-correlated with X-ray lightcurves. We find evidence for correlated variability, in particular when Sco X-1 enters the Flaring Branch. The Bowen/HeII lightcurves lag the X-ray lightcurves with a light travel time which is consistent with reprocessing in the companion star.



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