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Aims: To detect line effects using spectropolarimetry in order to findevidence of rotating disks and their respective symmetry axes in T Tauri stars.Methods: We used the IAGPOL imaging polarimeter along with the Eucalyptus-IFUto obtain spectropolarimetric measurements of the T Tauri stars RY Tau (twoepochs) and PX Vul (one epoch). Evidence of line effects showing a loop on theQ-U diagram favors a compact rather than an extended source for the linephotons in a rotating disk. In addition, the polarization position angle (PA)obtained using the line effect can constrain the symmetry axis of the disk.Results: RY Tau shown a variable Halpha double peak on 2004-2005 data.Polarization line effect is evident on the Q-U diagram for both epochsconfirming a clockwise rotating disk. A single loop is evident on 2004 changingto a linear excursion plus a loop on 2005. Interestingly, the intrinsic PAcalculated using the line effect is consistent between our two epochs(~167deg). An alternative intrinsic PA computed from the interstellarpolarization corrected continuum and averaged between 2001-2005 yielded a PA137deg. This last value is closer to be perpendicular to the observed diskdirection (~25deg) as expected by single scattering in an optically thin disk.For PX Vul, we detected spectral variability in Halpha along with non-variablecontinuum polarization when compared with previous data. The Q-U diagram showsa well-defined loop in Halpha associated to a counter-clockwise rotating disk.The symmetry axis inferred by the line effect has a PA~91deg (with an ambiguityof 90deg). Our results confirm previous evidence that the emission line in TTauri stars has its origin in a compact source scattered off a rotatingaccretion disk.

H\alpha spectropolarimetry of RY Tau and PX Vul