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Revisiting the Evidence for Double Sequences of Blue Straggler Stars in Globular Clusters
Gourav Kumawat, Craig O. Heinke, Alison Sills +5
Blue straggler stars (BSSs) are believed to form through mass transfer in binary systems or stellar collisions. The reported presence of double BSS sequences in some globular clust…
New Cataclysmic Variables and other Exotic Binaries in the Globular Cluster 47 Tucanae
L. E. Rivera Sandoval, M. van den Berg, C. O. Heinke +8
We present 22 new (+3 confirmed) cataclysmic variables (CVs) in the non core-collapsed globular cluster 47 Tucanae (47 Tuc). The total number of CVs in the cluster is now 43, the l…
X-ray Binaries in the Ultrahigh Encounter Rate Globular Cluster NGC 6388
J. Edward Maxwell, Phyllis M. Lugger, Haldan N. Cohn +5
We report the results of a joint \chandra-\hst study of the X-ray binary population in the massive, high-density globular cluster NGC 6388. NGC 6388 has one of the highest predicte…