Mapping quasi-periodic oscillations from the outbursting intermediate polar GK Persei
Astrophysics
2016-06-08 v1
Abstract
We present time-resolved spectrophotometry of GK Per taken on the rise to outburst maximum, in which we detect 5000 s QPOs in the optical emission lines. We use this opportunity to provide a kinematically-resolved analysis of the phenomenon. Observations are consistent with reprocessing off blobs of gas orbiting within the inner accretion disc, and evidence is found for the migration of the QPO source towards the compact star over orbital timescales.
Keywords
Cite
@article{arxiv.astro-ph/9608144,
title = {Mapping quasi-periodic oscillations from the outbursting intermediate polar GK Persei},
author = {L. Morales-Rueda and M. D. Still and P. Roche},
journal= {arXiv preprint arXiv:astro-ph/9608144},
year = {2016}
}
Comments
4 pages, uuencoded postscript (194kb), MNRAS in press, also available at http://star-www.st-and.ac.uk/~mds1/gkper-abs.html