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GSC 07396-00759 = V4046 Sgr C[D]: a Wide-separation Companion to the Close T Tauri Binary System V4046 Sgr AB
J. H. Kastner, G. G. Sacco, R. Montez +13
We explore the possibility that GSC 07396-00759 (spectral type M1e) is a widely separated (~2.82', or projected separation ~12,350 AU) companion to the "old" (age ~12 Myr) classica…
The close classical T Tauri binary V4046 Sgr: Complex magnetic fields & distributed mass accretion
J. F. Donati, S. G. Gregory, T. Montmerle +12
We report here the first results of a multi-wavelength campaign focussing on magnetospheric accretion processes within the close binary system V4046 Sgr, hosting two partly-convect…
The large-scale magnetic field and poleward mass accretion of the classical T Tauri star TW Hya
JF Donati, SG Gregory, SHP Alencar +9
We report here results of spectropolarimetric observations of the ~8Myr classical TTauri star (cTTS) TWHya carried out with ESPaDOnS at the Canada-France-Hawaii Telescope (CFHT) in…
Variable X-ray emission from the accretion shock in the Classical T Tauri Star V2129 Oph
C. Argiroffi, E. Flaccomio, J. Bouvier +7
The soft X-ray emission from high density plasma in CTTS is associated with the accretion process. It is still unclear whether this high density cool plasma is heated in the accret…