Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aj....135.2212x&link_type=abstract
The Astronomical Journal, Volume 135, Issue 6, pp. 2212-2216 (2008).
Astronomy and Astrophysics
Astronomy
6
Galaxies: Individual: Pks 1510-089, Galaxies: Jets, Galaxies: Nuclei, Radio Continuum: Galaxies
Scientific paper
We have analyzed the radio light curves of PKS 1510-089 at 37 and 22 GHz from 1990 to 2005 taken from the database of the Metsähovi Radio Observatory, and find evidence of quasi-periodic outbursts. The light curves show great activity with very complicated non-sinusoidal variations. Using Jurkervich's method, the power spectrum method, and the discrete autocorrelation function to analyze these data, we have found two periods of p 1 = 0.92 ± 0.04 yr and p 2 = 1.82 ± 0.12 yr for the outbursts in PKS 1510-089. It is interesting to note that the results for two frequencies and three methods are almost the same and p 2 ≈ 2p 1. In addition, these results are in good agreement with the periodic deep flux minima of 1.84 ± 0.1 yr (half period ~ 0.92 ± 0.03 yr) observed by us and other authors in the optical band in 2002, 2004, and 2005.
Chen Luo-En
Li Hua-Zhong
Xie G.-Zh.
Yi Ting-Feng
Zhou B. S.
No associations
LandOfFree
Periodicity Analysis of the Radio Curve of PKS 1510-089 and Implications for its Central Structure 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 Periodicity Analysis of the Radio Curve of PKS 1510-089 and Implications for its Central Structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Periodicity Analysis of the Radio Curve of PKS 1510-089 and Implications for its Central Structure will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1427788