5 papers
The Color-Magnitude Diagram of the Globular Cluster M14
Erik D. Reinhart, Thayne A. McCombs, Andrew N. Darragh +3
Using the SARA 0.9 meter telescope at Kitt Peak National Observatory (KPNO) we obtained R images during the summer of 2010 and V images during the summer of 2012 of the globular cl…
Discovery of a Probable SX Phoenicis Star in M107 (NGC 6171)
Thayne A. McCombs, Erik D. Reinhart, Andrew N. Darragh +2
Using V images taken in May and June 2012 with the SARA Consortium's 0.9-meter telescope located at Kitt Peak National Observatory, we searched for variable stars in the globular c…
Variable Stars in the Globular Cluster M14
Kyle E. Conroy, Andrew N. Darragh, Zheyu J. Liu +1
Using an image subtraction method we have searched for variable stars in the globular cluster M14. We confirmed 62 previously known catalogued variables. In addition to the previou…
New Variable Stars in the Globular Cluster NGC 6584
Joseph M. Toddy, Elliott W. Johnson, Andrew N. Darragh +1
Using the Southeastern Association for Research in Astronomy 0.6 meter telescope located at Cerro Tololo, we searched for variable stars in the southern globular cluster NGC 6584.…
New SX Phoenicis Variables in the Globular Cluster NGC 4833
Andrew N. Darragh, Brian W. Murphy
We report the discovery of 6 SX Phoenicis stars in the southern globular cluster NGC 4833. Images were obtained from January through June 2011 with the Southeastern Association for…