Dynamical Formation of Close Binaries in Globular Clusters II: Cataclysmic Variables
David Pooley (UC Berkeley), Piet Hut (Institute for Advanced Study)
TL;DR
This paper investigates the origins of cataclysmic variables in globular clusters, concluding that most are formed through dynamical interactions rather than primordial processes, based on analysis of Chandra data.
Contribution
It provides a thorough analysis of X-ray data to determine the dominant formation mechanism of CVs in globular clusters, favoring dynamical formation.
Findings
Majority of CVs in globular clusters formed dynamically
Analysis based on homogeneous Chandra data set
Supports dynamical formation over primordial origin
Abstract
We answer the long-standing question of which production mechanism is responsible for the cataclysmic variables (CVs) in globular clusters. Arguments have been given that range from mostly primordial presence to a significant contribution of later dynamical formation in close stellar encounters. We conclude, based on a thorough analysis of a homogeneous {\it Chandra} data set, that the majority of CVs in globulars has a dynamical origin.
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