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Parametric Models of Periodogram

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Abstract.

The maximum likelihood estimator is used to determine fit parameters for various parametric models of the Fourier periodogram followed by the selection of the best-fit model amongst competing models using the Akaike information criteria. This analysis, when applied to light curves of active galactic nuclei can be used to infer the presence of quasi-periodicity and break or knee frequencies. The extracted information can be used to place constraints on the mass, spin and other properties of the putative central black hole and the region surrounding it through theoretical models involving disk and jet physics.

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Authors and Affiliations

  1. Indian Institute of Astrophysics, Sarjapur Road, Koramangala, Bangalore, 560 034, India

    P. Mohan & A. Mangalam

  2. Bengal Engineering and Science University, Shibpur, Howrah, 711 103, India

    S. Chattopadhyay

Authors
  1. P. Mohan
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  2. A. Mangalam
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  3. S. Chattopadhyay
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Correspondence to A. Mangalam.

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Mohan, P., Mangalam, A. & Chattopadhyay, S. Parametric Models of Periodogram. J Astrophys Astron 35, 397–400 (2014). https://doi.org/10.1007/s12036-014-9240-x

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  • DOI: https://doi.org/10.1007/s12036-014-9240-x

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