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Exploring White Dwarfs and Binary Systems in Globular Clusters

Investigate the final evolutionary phases of low-mass stars in Globular Clusters, focusing on White Dwarfs and binary systems. Research led by PI G. Bono with collaborators from Rome, Teramo, and Pisa, including Stetson (DAO). XVII Terra Australis Incognita examines exotic objects and Omega Centauri as a goldmine of discoveries. The study compares the evolutionary times of He.White Dwarfs and Extreme HBs to CO.White Dwarfs. Utilizing deep and fast photometry to gather valuable data. Join us in unraveling the mysteries of these celestial wonders!

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Exploring White Dwarfs and Binary Systems in Globular Clusters

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  1. Final fate of low-mass stars: Hic Sunt Leones We plan to investigate the final evolutionary phases of low-mass stars in Globular Clusters, namely White Dwarfs and the Zoo of binary systems. PI Total time #CoIs, team G. Bono A few nights Rome, Teramo, Pisa collaborators + Stetson (DAO) + ……..

  2. Canonical Evolutionary Phases Iben’s (+ many others) legacy

  3. Exotic objects are in the corner !!!! XVII - Terra Australis Incognita!!

  4. Omega Centauri: the goldmine

  5.  He WDs M=0.3 Mo H-reignition CNO flashes Similar evolutionary times for He WDs & Extreme HBs But significantly longer than CO WDs!!

  6. Zoo of binary systems Verbunt & Lewin (2004) Kong et al. 2006 (NGC288)

  7. Deep photometry (Run A): I~30  1h with S/N~5 • K~29  2h with S/N~3 • Fast Photometry (Run B): I~26  180 sec with S/N~50 • J~26  300 sec with S/N~30

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