Nebular emission lines in IRAS 17347 3139
Abstract
We report the detection of nebular emission lines in the optical and mid-infrared spectra of IRAS 17347-3139, a heavily obscured OH/IR star which may be rapidly evolving from the AGB to the PN stage. The presence of emission lines is interpreted as a clear indication that the ionization of its circumstellar envelope has already started. This source belongs to the rare class of objects known as `OHPNe' displaying both OH maser and radio continuum emission. However, unlike the rest of stars in this class, prominent C-rich dust features are detected in its mid-infrared spectrum, which makes the analysis of this star particularly interesting.
- Publication:
-
Planetary Nebulae in our Galaxy and Beyond
- Pub Date:
- 2006
- DOI:
- 10.1017/S1743921306003620
- arXiv:
- arXiv:astro-ph/0608290
- Bibcode:
- 2006IAUS..234..437J
- Keywords:
-
- Astrophysics
- E-Print:
- 2 pages, 2 figures, Proc. IAU Symp. 234, Planetary Nebulae in Our Galaxy and Beyond (3-7 Apr 2006), eds. M.J. Barlow &