Table 6: Fraction of polarized flux (p) for bright Cepheids. This list is limited to Cepheids brighter than mV = 6.0 at maximum present in the catalogue assembled by Heiles (2000), apart from RS Pup. The color excess E(B-V) reported by Fernie (1990) is given for each star, and the p values larger than 1% are marked in bold characters.
Star mV E(B-V) $p \pm \sigma(p)$ (%)
FF Aql 5.2 0.22 $0.620 \pm 0.006$
$\eta$ Aql 3.5 0.15 $\bf 1.685 \pm 0.003$
RT Aur 5.0 0.05 $0.490 \pm 0.120$
U Car 5.7 0.28 $0.560 \pm 0.100$
v382 Car 3.8 - $0.510 \pm 0.100$
v399 Car 4.6 - $\bf 1.425 \pm 0.090$
$\ell $ Car* 3.3 0.17 $\bf 1.580 \pm 0.010$
SU Cas 5.7 0.29 $\bf 1.853 \pm 0.036$
$\delta$ Cep 3.5 0.09 $0.440 \pm 0.083$
BG Cru 5.3 0.05 $0.660 \pm 0.035$
X Cyg 5.8 0.29 $0.410 \pm 0.120$
DT Cyg 5.6 0.04 $0.280 \pm 0.120$
$\beta$ Dor 3.5 0.04 $0.440 \pm 0.035$
$\zeta$ Gem 3.6 0.02 $0.110 \pm 0.100$
$\omega$ Gem 5.1 - $0.090 \pm 0.120$
T Mon 5.6 0.21 $0.320 \pm 0.120$
Y Oph 5.9 0.66 $\bf 1.340 \pm 0.120$
MY Pup 5.5 0.06 $0.400 \pm 0.035$
RS Pup 7.0 0.45 $0.440 \pm 0.100$
S Sge 5.2 0.13 $0.689 \pm 0.009$
W Sgr 4.3 0.11 $0.775 \pm 0.016$
X Sgr 4.2 0.20 $\bf 1.708 \pm 0.232$
Y Sgr 5.2 0.21 $0.220 \pm 0.120$
AH Vel 5.5 0.07 $0.100 \pm 0.100$
T Vul 5.4 0.06 $0.220 \pm 0.120$
* The value of p for $\ell $ Car is taken from Bastien et al. (1988).

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