Analysis of the Irregular Pulsations of AC Her

Details Analysis of the Irregular Pulsations of AC Her Analysis of the Irregular Pulsations of AC Her

1997-07-08

arxiv.org/abs/astro-ph/9707099v1

Astronomy and Astrophysics

Astrophysics

Astronomy & Astrophysics (submitted, June 1997) -- 8 pages. e-mail: kollath@buda.konkoly.hu, buchler@phys.ufl.edu

Scientific paper

The AAVSO lightcurve data of the irregularly pulsating star AC Herculis of the RV Tau class are analysed. The lightcurve is shown to be incompatible with a periodic, or even multiperiodic pulsation, even if allowance is made for evolution. Instead the best explanation is that the irregularly alternating cycles are a manifestation of low dimensional chaos. The lightcurve is found to be generated by a 3 or 4 dimensional dynamics -- 3 or 4 first order ODEs. The (Lyapunov) fractal dimension of the underlying dynamic attractor is computed to be d_L ~ 2.2, smaller than the value of d_L ~ 3.1 found for R Sct.

Affiliated with

Also associated with

No associations

Rating

Analysis of the Irregular Pulsations of AC Her 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 Analysis of the Irregular Pulsations of AC Her, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analysis of the Irregular Pulsations of AC Her will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-86658