TY - GEN T1 - Contamination and exclusion in the sigma Orionis young group T2 - arXiv PY - 2004/11/15 AU - Burningham B AU - Naylor T AU - Littlefair SP AU - Jeffries RD ED - DO - DOI: 10.48550/arxiv.astro-ph/0411418 Y2 - 2025/11/04 ER -