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Home All issues Volume 502 / No 3 (August II 2009) A&A, 502 3 (2009) 929-936 Full HTML
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Table 4:

Polarimetric results. The Q/I and U/I values are not corrected for the pleochroism (see text). The last two columns give the 16% and 84% percentiles of the P distributions.

Object		 Date Filter $N_\theta^1$ $Q/I\;[\%]$ $U/I\;[\%]$ $P\;[\%]$ $P_{16\%}\;[\%]$ $P_{84\%}\;[\%]$

DENIS J2200		 01/08/05 I-Bessel 3 $+0.08 \pm 0.09 $ $ -0.01 \pm 0.08 $ 0 0 0.137

Kelu 1 AB		 02/08/05 I-Bessel 2 $+0.03 \pm 0.05 $ $ +0.13 \pm 0.10 $ 0.029 0 0.201
  02/08/05 z-Gunn 2 $-0.02 \pm 0.06 $ $ +0.00 \pm 0.07 $ 0 0 0.036

2MASS J0036		 01/08/05 R-Bessel 3 $-0.11 \pm 0.11$ $+0.10 \pm 0.09$ 0.065 0.020 0.222
  01/08/05 I-Bessel 3 $-0.08 \pm 0.03$ $-0.02 \pm 0.05$ 0.077 0.048 0.107
  10/08/06 I-Bessel 4 $-0.06 \pm 0.10$ $-0.02 \pm 0.12$ 0 0 0.112
  11/08/06 I-Bessel 4 $-0.03 \pm 0.05$ $-0.00 \pm 0.07$ 0 0 0.054
  average2 I-Bessel ... $-0.06\pm0.03$ $-0.01\pm0.04$ 0.053 0.029 0.079

2MASS J2158		 01/08/05 I-Bessel 3 $-0.01 \pm 0.22 $ $-0.03 \pm 0.26 $ 0 0 0.057
  02/08/05 z-Gunn 3 $-0.08 \pm 0.11$ $-0.19 \pm 0.19$ 0 0 0.319

LHS 102BC		 01/08/05 I-Bessel 2 $+0.38 \pm 0.06 $ $-0.03 \pm 0.12$ 0.376 0.315 0.435
  02/08/05 I-Bessel 2 $+0.23 \pm 0.15 $ $-0.08 \pm 0.22$ 0.204 0.057 0.358
  02/08/05 z-Gunn 3 $-0.5 \pm 0.7 $ $-0.6 \pm 0.6$ 0 0 1.209
  28/07/06 I-Bessel 4 $+0.30 \pm 0.33 $ $+0.22 \pm 0.10$ 0.321 0.191 0.499
  average2 I-Bessel ... $+0.30 \pm 0.05 $ $+0.04\pm0.07$ 0.300 0.246 0.355

2MASS J1507		 01/08/05 R-Bessel 3 $+0.10\pm 0.15$ $+0.04\pm 0.27$ 0 0 0.187
  01/08/05 I-Bessel 3 $+0.02\pm 0.05$ $-0.00\pm 0.11$ 0 0 0.036

DENIS J2252		 02/08/05 I-Bessel 3 $-0.07 \pm 0.09$ $-0.11 \pm 0.06$ 0.116 0.057 0.181

2MASS J2244		 02/08/05 z-Gunn 2 $+0.42 \pm 0.84 $ $-0.26 \pm 0.20 $ 0 0 0.749
      2 $+0.32 \pm 0.46$ $-0.07 \pm 0.15 $ 03 0 0.562
  19/08/06 I-Bessel 3 $+0.8 \pm 1.5$ $-0.52 \pm 1.08$ 0 0 1.581
      3 $+0.0 \pm 1.1 $ $-0.28 \pm 0.61 $ 03 0 0.507
  21/08/06 I-Bessel 3 $-0.72 \pm 0.88$ $+0.82 \pm 0.87$ 0 0 1.684
      3 $-0.5 \pm 1.0 $ $+0.04 \pm 1.1 $ 03 0 0.967
  22/08/06 I-Bessel 3 $-0.4 \pm 1.4 $ $+1.0 \pm 1.2 $ 03 0 1.828
  average2,3 I-Bessel ... $-0.30 \pm 0.65 $ $+0.25 \pm 0.49 $ 0.3433 0.157 0.549
$\epsilon$ Indi Bab 01/08/05 I-Bessel 3 $+0.03 \pm 0.13$ $+0.05 \pm 0.13$ 0.055 0 0.111

1 Number ($N_\theta$) of exposures per retarder angle. 2 Average based on the three I-Bessel measurements, the errors are propagated from the individual measurement uncertainties. 3 PSF-photometry. For 2MASS J2244, only the three PSF-photometry results are considered in the average.


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