Table 1
SDSS DR7 (DR8) z and UKIDSS DR9 YJHK photometry and old and newly determined proper motions (in mas/yr) of known and new >T5 dwarfs.
| Previously measured proper motion | New proper motion (this work) | ||||||||||
| object | SpT (Ref.) | z | Y | J | H | K | μαcosδ | μ δ | Ref | μαcosδ | μ δ |
|
|
|||||||||||
| known (LAS): | |||||||||||
| CFBDS J0059−0114 | T8.5 (1, 3) | ≳20.5 | 18.77 ± 0.06 | 18.03 ± 0.05 | 18.86 ± 0.25 | 18.40 ± 0.26 | +879 ± 008 | +51 ± 005 | (11) | +904 ± 069 | +22 ± 128 |
| WISE J0254+0223 | T8.0 (2, 3) | 19.86 ± 0.07◆ | 17.00 ± 0.01 | 15.92 ± 0.01 | 16.29 ± 0.03 | 16.73 ± 0.05 | +2496 ± 046 | +276 ± 047 | (2) | +2537 ± 022 | +236 ± 008 |
| WISE J0750+2725 | T8.5 (3, 3) | ≳20.5 | 19.75 ± 0.09 | 18.72 ± 0.04∗ | ≳18.7 | ≳18.1 | −732 ± 017 | −194 ± 017 | (12) | −666 ± 037 | −202 ± 076 |
| ULAS J0827−0204 | T5.5 (4, 4) | 20.41 ± 0.17 | 18.36 ± 0.05 | 17.16 ± 0.02 | 17.43 ± 0.05 | 17.52 ± 0.11 | +27 ± 003 | −109 ± 002 | (11) | +24 ± 012 | −98 ± 006 |
| WISE J0929+0409▸ | T6.5 (3, 3) | 20.75 ± 0.12∗ | 18.00 ± 0.02 | 16.87 ± 0.01 | 17.37 ± 0.07 | 17.40 ± 0.09 | +105 ± 374 | −773 ± 367 | (3) | +525 ± 022 | −460 ± 021 |
| SDSS J1110+0116 | T5.5 (5, 7) | 19.68 ± 0.11 | 17.34 ± 0.01 | 16.16 ± 0.01 | 16.20 ± 0.02 | 16.05 ± 0.03 | −243 ± 021 | −238 ± 018 | (13) | −237 ± 008 | −266 ± 003 |
| WISE J1311+0122▸ | T9: (3, 3) | ≳20.5 | 19.89 ± 0.10 | 18.97 ± 0.08 | ≳18.8 | ≳18.3 | −68 ± 324 | −827 ± 325 | (3) | −150 ± 229 | −847 ± 047 |
| SDSS J1346−0031 | T6.5 (6, 7) | 19.33 ± 0.04∗ | 16.80 ± 0.01 | 15.64 ± 0.01 | 15.97 ± 0.01 | 15.96 ± 0.02 | −503 ± 003 | −114 ± 001 | (14) | −480 ± 019 | −131 ± 014 |
| WISE J2226+0440▸ | T8/T8.5 (3, 3) | ≳20.5 | 18.04 ± 0.03 | 16.90 ± 0.02 | 17.45 ± 0.07 | 17.24 ± 0.09 | −56 ± 584 | −529 ± 596 | (3) | −150 ± 082 | −516 ± 128 |
| WISE J2344+1034▸ | T9 (3, 3) | ≳20.5 | 19.88 ± 0.12 | 18.84 ± 0.09 | 19.24 ± 0.29 | ≳18.2 | +574 ± 667 | −211 ± 668 | (3) | +859 ± 114 | −10 ± 128 |
|
|
|||||||||||
| known (GCS): | |||||||||||
| WISE J0307+2904 | T6.5 (3, 3) | n/a | – | n/a | n/a | 18.08 ± 0.12 | +91 ± 307 | −79 ± 312 | (3) | −154 ± 025 | −23 ± 016 |
| WISE J0410+1502 | Y0 (3, 8) | ≳20.5 | – | n/a | n/a | ≳18.2 | |||||
| WISE J0410+1411 | T6 (3, 3) | 20.52 ± 0.12◆ | – | n/a | n/a | 17.82 ± 0.20 | +19 ± 302 | −198 ± 326 | (3) | −81 ± 037 | −65 ± 047 |
| 2MASS J0516−0445 | T5.5 (9, 7) | 19.31 ± 0.08◆ | – | n/a | 15.77 ± 0.01 | 15.79 ± 0.02 | −270 ± 030 | −210 ± 030 | (15) | −225 ± 007 | −193 ± 009 |
| WISE J1541−2250?? | Y0 (3, 8) | n/a | – | n/a | n/a | 17.93 ± 0.19 | −780 ± 234 | −218 ± 249 | (3) | +984 ± 293 | +516 ± 187 |
|
|
|||||||||||
| new (LAS): | |||||||||||
| ULAS J0954+0623 | T5.5 (10, 10) | 19.58 ± 0.11 | 17.87 ± 0.02 | 16.59 ± 0.01 | 16.89 ± 0.02 | 17.17 ± 0.07 | −495 ± 014 | −422 ± 008 | |||
| ULAS J1152+0359 | T6 (10, 10) | 20.69 ± 0.19 | 18.54 ± 0.03 | 17.28 ± 0.02 | 17.70 ± 0.05 | 17.77 ± 0.12 | −388 ± 017 | −209 ± 033 | |||
| ULAS J1204−0150 | T5.5 (10, 10) | 20.49 ± 0.20 | 17.99 ± 0.03 | 16.81 ± 0.02 | 17.07 ± 0.04 | 17.29 ± 0.09 | −399 ± 016 | +166 ± 011 | |||
Notes. ▸ not in WISE PDR, ◆ SDSS DR8, ∗ mean values from multiple measurements, ?? doubtful GCS counterpart/new proper motion, n/a – not available, z magnitudes in AB system, YJHK = aperMag3 for point sources (Dye et al. 2006) in Vega system using MKO photometric system.
References. (discovery, SpT, proper motions): (1) – D08, (2) – S11, (3) – K11, (4) – Lodieu et al. (2007), (5) – Geballe et al. (2002), (6) – Tsvetanov et al. (2000), (7) – Burgasser et al. (2006), (8) – C11, (9) – Burgasser et al. (2003), (10) – New (this paper, SpT accurate to ± 0.5 sub-types), (11) – Marocco et al. (2010), (12) – Pinfield et al. (2012), (13) – Jameson et al. (2008), (14) – Tinney, Burgasser & Kirkpatrick (2003), (15) – Faherty et al. (2009).
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