# A WIYN Lithium Survey for Young Stars in the λ Orionis Star-forming Region

@article{Dolan1999AWL,
title={A WIYN Lithium Survey for Young Stars in the $\lambda$ Orionis Star-forming Region},
author={Christopher J. Dolan and Robert D. Mathieu},
journal={The Astronomical Journal},
year={1999},
volume={118},
pages={2409 - 2423}
}
• Published 1 November 1999
• Physics, Geology
• The Astronomical Journal
We have found 72 pre–main-sequence (PMS) stars near the center of the λ Orionis star-forming region by spectroscopically testing a magnitude-limited sample for the presence of lithium λ6708 absorption, a diagnostic of youth. All of these stars show large lithium equivalent widths and radial velocities consistent with Orion membership, but only two were discovered previously via Hα or X-ray surveys. Comparison with PMS evolutionary tracks show that the low-mass star formation did not begin prior…
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