T Tauri Stars Associated with Herbig-haro Objects and Jets
نویسنده
چکیده
We have obtained deep [S II] jj6716, 6731 and continuum images of the Ðve classical T Tauri stars (CTTSs) DP Tau, RW Aur, V536 Aql, LkHa 321, and V1331 Cyg. These CTTSs were selected for our imaging study because they either showed strong P Cygni absorptions in their spectra (LkHa 321, V1331 Cyg) or were known from long-slit spectroscopic studies to have bipolar jetlike outÑows (DP Tau, RW Aur, V536 Aql). For the latter three objects, the spatial extent and structure of the outÑows are studied here for the Ðrst time. In addition, LkHa 321 and V1331 Cyg were found to be associated with HerbigHaro (HH) objects and/or HH jets. In four cases, the jets or outÑows are bipolar, with the largest spatial extent seen in RW Aur (145A ; 0.1 pc for d \ 150 pc) and V1331 Cyg (360A ; 1 pc for d \ 550 pc). About 170A west of LkHa 321, we have serendipitously discovered a faint HH source, which we designate LkHa 321B.
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