Petersen Diagram Revolution
Abstract
Over the recent years, the Petersen diagram for classical pulsators, Cepheids and RR Lyr stars, populated with a few hundreds of new multiperiodic variables. We review our analyses of the OGLE data, which resulted in the significant extension of the known, and in the discovery of a few new and distinct forms of multiperiodic pulsation. The showcase includes not only radial mode pulsators, but also radial-non-radial pulsators and stars with significant modulation observed on top of the beat pulsation. First theoretical models explaining the new forms of stellar variability are briefly discussed.
Keywords
Cite
@article{arxiv.1703.03029,
title = {Petersen Diagram Revolution},
author = {R. Smolec and W. Dziembowski and P. Moskalik and H. Netzel and Z. Prudil and M. Skarka and I. Soszynski},
journal= {arXiv preprint arXiv:1703.03029},
year = {2017}
}
Comments
5 pages; to be published in the proceedings of the 22nd Los Alamos Stellar Pulsation Conference "Wide-field variability surveys: a 21st-century perspective", San Pedro de Atacama, Chile, Nov. 28 - Dec. 2, 2016