X-ray Fluctuations from the Slim Disk

Details X-ray Fluctuations from the Slim Disk X-ray Fluctuations from the Slim Disk

2000-05-08

arxiv.org/abs/astro-ph/0005162v1

Astronomy and Astrophysics

Astrophysics

Poster contribution presented at the Joint MPE,AIP,ESO workshop on NLS1s, Bad Honnef, Dec. 1999, to appear in New Astronomy Re

Scientific paper

The responses of perturbations added into the optically thick, advection-dominated accretion disk (ADAD), what we call the slim disk (SD), are investigated through numerical simulations. Although it is proposed that the SD is thermally stable, I find that a perturbation added into the disk is not rapidly damped and moves through the disk in its free-fall time. After the perturbation moves, the global structure of the disk does not vary very much. These facts may account for the substantial variability of the X-ray luminosities of stellar super-luminal jet sources (SLJSs) and Narrow-Line Seyfert 1s (NLS1s).

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