Astronomy and Astrophysics – Astronomy
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21812102j&link_type=abstract
American Astronomical Society, AAS Meeting #218, #121.02; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
The origins and characteristics of the lowest mass free-floating objects constitute a major question in the study of star and planet formation. Our on-going SONYC (Substellar Objects in Nearby Young Clusters) survey uses extremely deep wide-field optical and near-infrared imaging, with follow-up spectroscopy on 8m-class telescopes, in combination with Spitzer photometry to explore substellar objects with masses down to a few times that of Jupiter. Here we present our latest findings for three nearby star-forming regions (NGC 1333, rho Oph and Cha I), describe the lowest mass objects we have found so far, and discuss the minimum mass limit for star formation.
Geers Vincent
Jayawardhana Ray
Muzic Koraljka
Scholz Aleks
Tamura Masafumi
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