activity
20102019
most citedLight Curves and Period Changes of Type II Cepheids in the Globular Clusters M3 and M5

14 citations · 29 across the 5 of their papers we have counts for

collaborators

6 papers

astro-ph.IM2019

Astro2020 State of the Profession White Paper: Astronomy's Archival Materials

James Lattis, Wayne Osborn, Jennifer Lynn Bartlett +7

We argue that it is essential that the Astro2020 survey of the present state of American astronomy and the recommendations for the next decade address the issue of ensuring preserv…

astro-ph.SR2019

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New CCD photometry has been combined with published and unpublished earlier observations to study the three Cepheid variables in M13: V1, V2 and V6.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…

astro-ph.IM2019★ 4 cited

Historical astronomical data: urgent need for preservation, digitization enabling scientific exploration

Alexei Pevtsov, Elizabeth Griffin, Jonathan Grindlay +16

Over the past decades and even centuries, the astronomical community has accumulated a signif-icant heritage of recorded observations of a great many astronomical objects. Those re…

astro-ph.SR2016★ 11 cited

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…

astro-ph.IM2013

Man Versus Machine: Eye Estimates in the Age of Digital Imaging

Wayne Osborn

Astronomical observing has been greatly simplified by the development and implementation of digital imaging techniques and remote observing. Aperture photometry of CCD data permits…

astro-ph.SR2010★ 14 cited

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…