Astronomy and Astrophysics – Astrophysics
Scientific paper
1998-10-14
Astronomy and Astrophysics
Astrophysics
Accepted for publication in The Monthly Notices of the Royal Astronomical Society
Scientific paper
10.1046/j.1365-8711.1999.02196.x
We derive power density spectra in the optical and X-ray band in the timescale range from several years down to $\sim $ a day. We suggest that the optical power density spectrum consists of two separate components: long timescale variations and short timescale variations, with the dividing timescale around 100 days. The shape of the short timescale component is similar to X-ray power density spectrum which is consistent with the interpretation of short timescale optical variations being caused by X-ray reprocessing. We show that the observed optical long timescale variability is consistent with thermal pulsations of the accretion disc.
Czerny Bozena
Loska Z.
Schwarzenberg-Czerny Aleksander
No associations
LandOfFree
Power density spectrum of NGC 5548 and the nature of its variability does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Power density spectrum of NGC 5548 and the nature of its variability, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power density spectrum of NGC 5548 and the nature of its variability will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-235755