USco ZYJHK1K2 photometry and proper motions

DOI

We present the results of a deep ZYJ near-infrared survey of 13.5deg^2^ in the Upper Scorpius (USco) OB association. We photometrically selected ~100 cluster member candidates with masses in the range of 30-5 Jupiters, according to state-of-the-art evolutionary models. We identified 67 ZYJ candidates as bona fide members, based on complementary photometry and astrometry. We also extracted five candidates detected with Visible and Infrared Survey Telescope for Astronomy at YJ only. One is excluded using deep optical z-band imaging, while two are likely non-members, and three remain as potential members. We conclude that the USco mass function is more likely decreasing in the planetary-mass regime (although a flat mass function cannot yet be discarded), consistent with surveys in other regions.

Cone search capability for table J/MNRAS/435/2474/table2 (USco member candidates in the VISTA deep survey)

Cone search capability for table J/MNRAS/435/2474/table3 (USco candidates classified as photometric and/or astrometric non-members)

Cone search capability for table J/MNRAS/435/2474/table4 (Z-band dropouts (or YJ-only) candidates in USco)

Identifier
DOI http://doi.org/10.26093/cds/vizier.74352474
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/MNRAS/435/2474
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/435/2474
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/435/2474
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/MNRAS/435/2474
Provenance
Creator Lodieu N.; Dobbie P.D.; Cross N.J.G.; Hambly N.C.; Read M.A.; Blake R.P.,Floyd D.J.E.
Publisher CDS
Publication Year 2014
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Galactic and extragalactic Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy