Relativistic Binaries in Globular Clusters

Galactic globular clusters are old, dense star systems typically containing 10\super{4}--10\super{7} stars. As an old population of stars, globular clusters contain many collapsed and degenerate objects. As a dense population of stars, globular clusters are the scene of many interesting close dynamical interactions between stars. These dynamical interactions can alter the evolution of individual stars and can produce tight binary systems containing one or two compact objects. In this review, we discuss theoretical models of globular cluster evolution and binary evolution, techniques for simulating this evolution that leads to relativistic binaries, and current and possible future observational evidence for this population. Our discussion of globular cluster evolution will focus on the processes that boost the production of hard binary systems and the subsequent interaction of these binaries that can alter the properties of both bodies and can lead to exotic objects. Direct {\it N}-body integrations and Fokker--Planck simulations of the evolution of globular clusters that incorporate tidal interactions and lead to predictions of relativistic binary populations are also discussed. We discuss the current observational evidence for cataclysmic variables, millisecond pulsars, and low-mass X-ray binaries as well as possible future detection of relativistic binaries with gravitational radiation.Comment: 88 pages, 13 figures. Submitted update of Living Reviews articl

Scrooge posing as Mother Teresa: How hypocritical social responsibility strategies hurt employees and firms

Extant research provides compelling conceptual and empirical arguments that company-external (e.g., philanthropic) as well as company-internal (i.e., employee-directed) CSR efforts positively affect employees, but does so largely in studies assessing effects from the two CSR types independently of each other. In contrast, this paper investigates external–internal CSR jointly, examining the effects of (in)consistent external–internal CSR strategies on employee attitudes, intentions, and behaviors. The research takes a social and moral identification theory view and advances the core hypothesis that inconsistent CSR strategies, defined as favoring external over internal stakeholders, trigger employees’ perceptions of corporate hypocrisy which, in turn, lead to emotional exhaustion and turnover. In Study 1, a cross-industry employee survey (n = 3410) indicates that inconsistent CSR strategies with larger external than internal efforts increase employees’ turnover intentions via perceived corporate hypocrisy and emotional exhaustion. In Study 2, a multi-source secondary dataset (n = 1902) demonstrates that inconsistent CSR strategies increase firms’ actual employee turnover. Combined, the two studies demonstrate the importance of taking into account the interests of both external and internal stakeholders of the firm when researching and managing CSR