Hα spectropolarimetry of RY Tauri and PX Vulpeculae (Research Note)

摘要: Aims. To detect line effects using spectropolarimetry in order to find evidence of rotating disks and their respective symmetry axes T Tauri stars. Methods. We used the IAGPOL imaging polarimeter along with Eucalyptus-IFU obtain spectropolarimetric measurements stars RY Tau (two epochs) PX Vul (one epoch). Evidence showing a loop Q−U diagram favors compact rather than an extended source for photons disk. In addition, polarization position angle (PA) obtained effect can constrain axis Results. shows variable Hα double peak 2004−2005 data. A is evident both epochs confirming clockwise single 2004 changing linear excursion plus 2005. Interestingly, intrinsic PA calculated consistent between our two (∼167 ◦ ). An alternative computed from interstellar polarization-corrected continuum averaged 2001−2005 yielded ∼ 137 .T his last value closer perpendicular observed disk direction (∼25 ), as expected scattering optically thin For Vul, we detected spectral variability non-variable when compared previous The well-defined associated counter-clockwise inferred has 91 (with ambiguity 90 Our results confirm that emission its origin scattered off accretion