3C 345 - Is the variability of quasars nonlinear?

Details 3C 345 - Is the variability of quasars nonlinear? 3C 345 - Is the variability of quasars nonlinear?

Oct 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...380..351v&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 380, Oct. 20, 1991, p. 351-356.

Physics

19

Astronomical Photometry, Quasars, Variability, Light Curve, Luminosity, Power Spectra, Stochastic Processes

Scientific paper

The optical light curve of the OVV quasar 3C 345 is analyzed. It is shown that it is generated by a nonlinear and nonstationary stochastic process. The observed characteristics of the 3C 345 variability, such as the varying power spectrum and the strong luminosity bursts, are easily accounted for in this mathematical framework. Conventional algorithms suitable for linear analysis (power spectrum, structure function, covariance function, etc.) are not useful in this case and different approaches have to be devised. The physics acting in the central regions of QSOs are probably nonlinear and dominated by a quantity subject to random variations.

Affiliated with

Also associated with

No associations

Rating

3C 345 - Is the variability of quasars nonlinear? 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 3C 345 - Is the variability of quasars nonlinear?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 3C 345 - Is the variability of quasars nonlinear? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1875374