J/AJ/133/971: Resource Record Summary

Resource Record Summary

Catalog Service:
Wide companions of low-mass stars and brown dwarfs

Short name: J/AJ/133/971 IVOA Identifier: ivo://CDS.VizieR/J/AJ/133/971 DOI (Digital Object Identifier): 10.26093/cds/vizier.51330971 Publisher: CDS[+]ivo://CDS[Pub. ID] More Info: https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/133/971 VO Compliance: Level 2: This is a VO-compliant resource.	Status: active Registered: 2009 Nov 17 10:07:09Z
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Description

We present the results of a deep-imaging search for wide companions to low-mass stars and brown dwarfs using NSFCam on the Infrared Telescope Facility. We searched a sample of 132 M7-L8 dwarfs to magnitude limits of J~20.5 and K~18.5, corresponding to secondary-to-primary mass ratios of ~0.5. No companions were found with separations between 2" and 31" (~40 to ~1000AU). This null result implies a wide companion frequency below 2.3% at the 95% confidence level within the sensitivity limits of the survey. Preliminary modeling efforts indicate that we could have detected 85% of companions more massive than 0.05M_{sun}_ and 50% above 0.03M_{sun}_.

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