RT Journal Article T1 Evidence for an ionized rotating structure around RW Aur A1 Gómez De Castro, Ana Inés A1 Verdugo, Eva AB Profiles of the UV semiforbidden lines of C III](1908) and Si III](1892) of RW Aur have been obtained with the HST/STIS. The C III](1908) profile shows two high velocity components at v = +/- 170 km s(-1) and a central one. The Si III](1892) profile is very broad (FWHM = 293 km s(-1)) and the high velocity components are unresolved. It is shown that the high velocity components are most probably produced in a rotating belt alike the detected in other sources of bipolar outflows. A radius between 2.7 R-* and the corotation radius (6.1 R-*) is derived and a log T-e ( K) similar or equal to 4.7 and log n(e)(cm(-3)) = 11.6 are estimated. The belt is clumpy and the most likely source of heating is local X-rays radiation, probably associated with the release of magnetic energy. PB Springer SN 0004-640X YR 2004 FD 2004 LK https://hdl.handle.net/20.500.14352/50073 UL https://hdl.handle.net/20.500.14352/50073 LA eng NO Gómez De Castro, A. I. & Verdugo, E. «Evidence for an Ionized Rotating Structure Around RW Aur». Astrophysics and Space Science, vol. 292, n.o 1-4, 2004, pp. 691-96. DOI.org (Crossref), https://doi.org/10.1023/B:ASTR.0000045076.14133.89. NO International Workshop on Magnetic Fields and Star Formation, APR 21-25, 2003, Madrid, SPAIN DS Docta Complutense RD 6 abr 2025