A Search for Very Young low-mass stars, Brown Dwarfs and Giant Planets in the Taurus Association

Details A Search for Very Young low-mass stars, Brown Dwarfs and Giant Planets in the Taurus Association A Search for Very Young low-mass stars, Brown Dwarfs and Giant Planets in the Taurus Association

Aug 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999noao.prop..308b&link_type=abstract

NOAO Proposal ID #1999B-0308

Computer Science

Scientific paper

We propose to use the NOAO CCD Mosaic imager on the 0.9m and 4m KPNO telescopes to conduct a wide-field, deep IZ imaging survey of 14 Box^o in the Taurus molecular clouds. This survey will be sensitive enough to detect 1-2 Myr old very low-mass stars, Brown Dwarfs (BDs) and Giant Planets down to roughly 10 Jupiter masses, resulting in an unique and robust sample of extremely low-mass objects at very early evolutionary phases for addressing fundamental issues in star and planet formation: the low-mass end of the Initial Mass Function, the frequency of circumstellar disks at the lowest masses, properties of the youngest BDs, Giant Planets and scenarios for their formation. This sample will also set a reference for comparison with results in regions of high stellar density, to test how environmental conditions may affect the overall properties and formation of the lowest mass stars, BDs and Giant Planets. We will use I vs. I-Z color-magnitude diagrams to select very red and faint candidates for followup spectroscopy. We estimate that the proposed NOAO CCD Mosaic survey could result in ⪆ 50 objects over the range 0.2 ⪉ M ⪉ 0.01 MSUN.

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