# The initial mass function and disk frequency of the ρ ophiuchi cloud: An extinction-limited sample

@article{Erickson2011TheIM,
title={The initial mass function and disk frequency of the $\rho$ ophiuchi cloud: An extinction-limited sample},
author={Kristy L. Erickson and Bruce A. Wilking and Michael R. Meyer and John G. Robinson and Lauren N. Stephenson},
journal={The Astronomical Journal},
year={2011},
volume={142},
pages={140}
}
We have completed an optical spectroscopic survey of an unbiased, extinction-limited sample of candidate young stars covering 1.3 deg2 of the ρ Ophiuchi star-forming region. While infrared, X-ray, and optical surveys of the cloud have identified many young stellar objects (YSOs), these surveys are biased toward particular stages of stellar evolution and are not optimal for studies of the disk frequency and initial mass function. We have obtained over 300 optical spectra to help identify 135…

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