A UKIDSS-based search for low-mass stars and small stellar clumps in off-cloud parts of young star-forming regions *

Details A UKIDSS-based search for low-mass stars and small stellar clumps in off-cloud parts of young star-forming regions * A UKIDSS-based search for low-mass stars and small stellar clumps in off-cloud parts of young star-forming regions *

Jul 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epjwc..1606009p&link_type=abstract

Research, Science and Technology of Brown Dwarfs and Exoplanets: Proceedings of an International Conference held in Shangai on O

Astronomy and Astrophysics

Astronomy

Scientific paper

The form and universality of the mass function of young and nearby star-forming regions is still under debate. Its relation to the stellar density, its mass peak and the dependency on most recent models shows significant differencies for the various regions and remains unclear up to date. We aim to get a more complete census of two of such regions. We investigate yet unexplored areas of Orion and Taurus-Auriga, observed by the UKIDSS survey. In the latter, we search for low-mass stars via photometric and proper motion criteria and signs for variability. In Orion, we search for small stellar clumps via nearest-neighbor methods. Highlights in Taurus would be the finding of the missing low-mass stars and the detection of a young cluster T dwarf. In Orion, we discovered small stellar associations of its OB1b and OB1c populations. Combined with what is known in literature, we will provide by this investigations a general picture of the results of the star-forming processes in large areas of Taurus and Orion and probe the most recent models.
Based on data of the UKIRT (operated by the Joint Astronomy Centre on behalf of the Science and Technology Facilities Council of the U.K.) Infrared Deep Sky Survey (UKIDSS).Supported by the Marie Curie Research Training Network `CONSTELLATION' under grant no. MRTN-CT-2006-035890.

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