Light Curves and Period Changes of Type II Cepheids in the Globular Clusters M3 and M5

Katie Rabidoux, Horace A. Smith, Barton J. Pritzl +20

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…