Multiwavelength Variability Power Spectrum Analysis of the Blazars 3C 279 and PKS 1510–089 on Multiple Timescales

@article{Goyal2022MultiwavelengthVP,
  title={Multiwavelength Variability Power Spectrum Analysis of the Blazars 3C 279 and PKS 1510–089 on Multiple Timescales},
  author={Arti Goyal and Marian Soida and Łukasz Stawarz and Paul J. Wiita and Kari Nilsson and Svetlana G. Jorstad and Alan P. Marscher and Margo F. Aller and H. D. Aller and Anne L{\"a}hteenm{\"a}ki and Talvikki Hovatta and Staszek Zoła and Krzysztof Nalewajko and Merja Tornikoski and Joni Tammi and Mark W. Hodges and Sebastian Kiehlmann and Anthony C. S. Readhead and Walter Max-Moerbeck and Eila Lindfors and Vandad Fallah Ramazani and Daniel E. Reichart and Daniel B. Caton and Janeth Valverde and D. Horan and Roopesh Ojha and Pfesesani van Zyl},
  journal={The Astrophysical Journal},
  year={2022},
  volume={927}
}
We present the results of variability power spectral density (PSD) analysis using multiwavelength radio to GeV γ-ray light curves covering timescales of decades/years to days/minutes for the blazars 3C 279 and PKS 1510−089. The PSDs are modeled as single power laws, and the best-fit spectral shape is derived using the “power spectral response” method. With more than 10 yr of data obtained with weekly/daily sampling intervals, most of the PSDs cover ∼2–4 decades in temporal frequency; moreover… 
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