Light Curves and Period Changes of Type II Cepheids in the Globular Clusters M3 and M5
Solar and Stellar Astrophysics
2015-05-18 v1
Abstract
Light curves in the B, V, and I_c passbands have been obtained for the type II Cepheids V154 in M3 and V42 and V84 in M5. Alternating cycle behavior, similar to that seen among RV Tauri variables, is confirmed for V84. Old and new observations, spanning more than a century, show that V154 has increased in period while V42 has decreased in period. V84, on the other hand, has shown large, erratic changes in period that do not appear to reflect the long term evolution of V84 through the HR diagram.
Cite
@article{arxiv.1003.5924,
title = {Light Curves and Period Changes of Type II Cepheids in the Globular Clusters M3 and M5},
author = {Katie Rabidoux and Horace A. Smith and Barton J. Pritzl and Wayne Osborn and Charles Kuehn and Jill Randall and R. Lustig and K. Wells and Lisa Taylor and Nathan De Lee and K. Kinemuchi and Aaron LaCluyzé and D. Hartley and C. Greenwood and M. Ingber and M. Ireland and E. Pellegrini and Mary Anderson and Gene Purdum and J. Lacy and M. Curtis and Jason Smolinski and Stephen Danford},
journal= {arXiv preprint arXiv:1003.5924},
year = {2015}
}
Comments
28 pages, 12 figures