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| Query : 2011A&A...526A..55B |
2011A&A...526A..55B - Astronomy and Astrophysics, volume 526A, 55-55 (2011/2-1)
Adaptive optics observations of the T10 ultracool dwarf UGPS J072227.51-054031.2.
BOUY H., GIRARD J.H.V., MARTIN E.L., HUELAMO N. and LUCAS P.W.
Abstract (from CDS):
With a spectral type of T10, UGPS J072227.51-054031.2 is one of the coolest objects known to date in the solar neighborhood. Multiple systems are relatively common among early and mid-T dwarfs. We search for faint and close companions around UGPS J072227.51-054031.2. We have obtained high spatial resolution images in the H and Ks bands using adaptive optics at the Very Large Telescope. With a Strehl ratio in the range 10-15%, the final images allow us to rule out the presence of a companion brighter than H≲19.4mag at separation larger than 50 mas, and H≲21.4mag at separation larger than 0.1''.
Abstract Copyright: ∼
Journal keyword(s): binaries: general - brown dwarfs - techniques: high angular resolution
Nomenclature: Table 1, Figure 1 : [BGM2011b] JHHMMSS.ss+DDMMSS.s N=8
Simbad objects: 10
| Number of rows : 10 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2024 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | [BGM2011b] J072226.97-054029.4 | * | 07 22 26.97 | -05 40 29.4 | ~ | 1 | 0 | |||||
| 2 | [BGM2011b] J072227.02-054039.2 | * | 07 22 27.02 | -05 40 39.2 | ~ | 1 | 0 | |||||
| 3 | [BGM2011b] J072227.28-054030.0 | * | 07 22 27.28 | -05 40 30.0 | ~ | 1 | 0 | |||||
| 4 | [BGM2011b] J072227.34-054026.8 | * | 07 22 27.34 | -05 40 26.8 | ~ | 1 | 0 | |||||
| 5 | WISE J072227.27-054029.9 | BD* | 07 22 27.51096 | -05 40 31.2096 | T9 | 75 | 0 | |||||
| 6 | [BGM2011b] J072227.56-054034.4 | * | 07 22 27.56 | -05 40 34.4 | ~ | 1 | 0 | |||||
| 7 | 2MASS J07222760-0540384 | * | 07 22 27.6018952248 | -05 40 38.348869980 | ~ | 3 | 0 | |||||
| 8 | [BGM2011b] J072227.64-054033.0 | * | 07 22 27.64 | -05 40 33.0 | ~ | 1 | 0 | |||||
| 9 | [BGM2011b] J072227.79-054034.7 | * | 07 22 27.79 | -05 40 34.7 | ~ | 1 | 0 | |||||
| 10 | UCAC3 169-73338 | * | 07 22 28.4877349800 | -05 40 37.795609992 | ~ | 1 | 0 |
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