Analysis of the Petersen Diagram of Double Mode High Amplitude δ Scuti Stars
Volume 44 number 1 (2016)
- Riccardo Furgoni
- AAVSO - Via Fossamana, 86 46030 San Giorgio di Mantova (MN), Italy - riccardo.furgoni@gmail.com
Abstract
I created the Petersen diagram relative to all the Double Mode High Amplitude δ Scuti stars listed in the AAVSO's International Variable Star Index (Watson et al. 2007-2015) up to date December 29, 2015. For the first time I noticed that the ratio between the two periods P1/P0 seems in evident linear relation with the duration of the period P0, a finding never explicitly described in literature regarding this topic.