A Variability Study of Long-term Optical Data of OJ 287
Abstract
In this paper, we investigated the possible exponential decays in the long term optical light curve of the BL Lac {OJ 287}. We developed a method that can be used to decomposing a light curve into a linear combination of exponential decays. The decomposing shows that the decay time scales range from ~ 103.6 to ~ 10-4 days. The power spectra has frequency-dependent power-law with slop ~ 0.5, and the peak of power is at the time scale of decay on ~ 160 days.
- Publication:
-
Feeding Compact Objects: Accretion on All Scales
- Pub Date:
- February 2013
- DOI:
- 10.1017/S1743921312019953
- Bibcode:
- 2013IAUS..290..269L
- Keywords:
-
- Quasar;
- OJ 287;
- time series analysis;
- method;
- exponential decay