14 citations · 29 across the 5 of their papers we have counts for
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Variable Stars in M13. III. The Cepheid Variables and their Relation to Evolutionary Changes in Metal-poor BL Her Stars
Wayne Osborn, Grzegorz Kopacki, Horace A. Smith +3
New CCD photometry has been combined with published and unpublished earlier observations to study the three Cepheid variables in M13: V1, V2 and V6. The light curve characteristics…
GR 290 (Romano's Star): 2. Light history and evolutionary state
V. F. Polcaro, O. Maryeva, R. Nesci +11
We have built the historical light curve of the luminous variable GR 290 back to 1901, from old observations of the star found in several archival plates of M 33. These old recordi…
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…