Estimating the low-mass IMF in OB associations : o Orionis

B. Burningham, T. Naylor, S.P. Littlefair, R.D. Jefferies

Research output: Chapter in Book/Report/Conference proceedingChapter


We investigate the issues of contamination and exclusion in photometric membership selection techniques when applied to OB associations. We use radial velocities to calculate membership probabilities for a sample of very low-mass candidate members of the σ Orionis young group. We find that significant numbers of bona members are not excluded by photometric selection techniques, and for I brighter than 17 there is not significant contamination in the expected PMS region.
Original languageEnglish
Title of host publicationThe Initial Mass Function 50 Years Later
PublisherSpringer Nature
ISBN (Print)978-1-4020-3406-0, 978-1-4020-3407-7
Publication statusPublished - 2005

Publication series

NameAstrophysics and Space Science Library


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