Monday, Jan 10, 2011, 9:00 AM - 6:30 PM
Using Non-linear X-ray Variability to Explore the Core of Active Galaxy 3C 390.3
, K. Marshall
Rochester Institute of Technology,
Luminous variability of active galaxies is a universal phenomenon; however, there is no universally accepted causal mechanism. This study investigated variability of the broad line radio galaxy 3C 390.3. We concentrated on variability in the X-ray regime (2-10 keV), which is quite rapid-a consequence of the radiation source being proximal to the super massive black hole. Such variability can be explained by accretion disk models; however, there are numerous plausible but physically distinct models. We sought to isolate a particular accretion model which accurately describes the X-ray features for this galaxy. After performing a detailed time series analysis, with a focus on linearity tests, our results imply with high confidence that a non-linear multiplicative model is generating the variability. Given this criterion, we assert that the propagating viscosity fluctuation model is best suited for describing the observed X-ray behavior of this galaxy.
This work was supported by the Bucknell University REU program which is funded by the National Science Foundation.
Link to all AAS 217th Abstracts
Seattle Meeting Home
Attendee Services & Resources
American Astronomical Society
2000 Florida Ave., NW
Washington, DC 20009
The Online Abstract Submission and Invitation System
© 1996 - 2013 Coe-Truman Technologies, Inc. All rights reserved.