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Table 1:

Log of observations and results for GG Car.
Date ITa S/Nb $\it {P}_{\rm obs}$c PA $_{\rm obs}$c PA $_{\rm int}$
  (s)   (%) ($^\circ$) ($^\circ$)
2006 Apr. 05 4800 104 1.6 (0.1) 85 (2) 84 (6)
2006 May 18 4800 154 1.5 (0.1) 84 (2) 85 (4)

Errors in parenthesis. a Total integration time (8 $\times$ individual integration time by waveplate position); b signal-to-noise ratio per pixel for the unbinned spectra; c mean values for the full spectrum (6300-6800 $\rm\AA$) binned with a polarization error (per bin) of 0.1%. The quoted polarization error is the average error per bin and the PA error is given by 28.65 $\times\sigma_{P}/P$ (Serkowski 1974).

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