Time Series Analysis of AGN Variability

Details Time Series Analysis of AGN Variability Time Series Analysis of AGN Variability

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aas...19311905w&link_type=abstract

American Astronomical Society, 193rd AAS Meeting, #119.05; Bulletin of the American Astronomical Society, Vol. 30, p.1427

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Time variability has long been used as a tool to constrain the physical conditions inside the central engines in AGN. The use of rapid variability and emission-line time delays (echoes) have been particularly powerful probes of the size of the AGN because they are relatively model independent. However, UV/optical light curves of AGN are poorly sampled and of short duration, and this has an important consequence --- the traditional cross--correlation function (CCF) is heavily biased towards underestimating the lag. We present this and other results of our time series study of AGN variability.

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