Stellar Multiplicity

  title={Stellar Multiplicity},
  author={Gaspard Duch{\^e}ne and Adam G. Riess UC Berkeley and Institut de Plan'etologie et d'Astrophysique de Grenoble and Harvard-Smithsonian CfA},
Stellar multiplicity is an ubiquitous outcome of the star formation process. Characterizing the frequency and main characteristics of multiple systems and their dependencies on primary mass and environment is therefore a powerful tool to probe this process. While early attempts were fraught with selection biases and limited completeness, instrumentation breakthroughs in the last two decades now enable robust analyses. In this review, we summarize our current empirical knowledge of stellar… 

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