Identification of SIPS~J2045$-$6332 as a partially resolved binary
Niall R Deacon (1,2), Kyle L Sobanja (2), Leigh C Smith (3,2) ((1) Max, Planck Institute for Astronomy, (2) University of Hertfordshire, (3), Institute of Astronomy, Cambridge)
TL;DR
This paper identifies SIPS J2045-6332 as a partially resolved binary system with a late L dwarf companion, using shape measurement techniques on VISTA VHS images, suggesting it as a target for high-resolution follow-up.
Contribution
The study applies weak lensing shape measurement techniques to identify a binary system in VISTA VHS images, revealing a likely late L dwarf companion.
Findings
SIPS J2045-6332 is a partially resolved binary with a secondary late L dwarf.
The binary has an implied position angle of approximately 290 degrees.
The object is a promising candidate for high-resolution imaging follow-up.
Abstract
We show that SIPS J2045-6332, a late M/early L object previously identified as a candidate spectral mix binary, shows an elongated image shape. Using shape measurement techniques originally developed for cosmological weak lensing surveys on VISTA VHS images we show that this likely blended binary has an implied position angle of ~290 degrees East of North with a secondary companion that is likely to be a late L dwarf. This object would be a good follow-up target for high resolution imaging studies
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