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Mass segregation in young clusters: observational biases |
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| Authors: | Joana Ascenso João Alves Maria Teresa V T Lago |
| Institution: | 1. Centro de Astrofísica da Universidade do Porto, Rua das Estrelas, 4150-762, Porto, Portugal 2. Calar Alto Observatory, Centro Astronómico Hispano-Alemán, C/ Jesús Durbán Remón 2-2, 04004, Almeria, Spain 3. Departamento de Matemática Aplicada da Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 657, 4169-007, Porto, Portugal |
| Abstract: | We investigate the validity of the mass-segregation indicators most commonly used in the analysis of young stellar clusters. We construct and analyze synthetic massive clusters with a standard, fully sampled stellar initial mass function and a King density distribution function. We find that the commonly used indicators are highly sensitive to the effects of incompleteness in observational data, and that completeness determinations do not provide satisfactory corrections, leading to results that may be severely biased toward mass segregation. |
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