A Photometric Study of Young Stars in the (lambda) Orionis Star-Forming Region

Details A Photometric Study of Young Stars in the (lambda) Orionis Star-Forming Region A Photometric Study of Young Stars in the (lambda) Orionis Star-Forming Region

Aug 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999noao.prop..280d&link_type=abstract

NOAO Proposal ID #1999B-0280

Computer Science

Scientific paper

With 11 OB stars centered in an unobscured ring of clouds littered with low-mass pre-main sequence stars, the (lambda) Orionis star- forming region is an excellent laboratory for studying the effects of massive stars on low-mass star formation. We propose a BVRI photometric survey of the entire star-forming region with the wide-field 0.9m/Mosaic imager. The goals of the photometry will be (1) to identify young stellar candidates throughout the region via pre-main sequence loci in the color-magnitude diagram and (2) to derive ages and masses by comparison with pre-main-sequence evolutionary tracks. The ages will allow us to deduce the sequence of star formation in the region, while the masses will reveal the spatial dependence of the initial mass function. Together, these results allow us to determine the influence of the OB stars on the formation of low- mass stars.

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