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Nebular emission lines in IRAS 17347-3139

F. M. Jiménez-Esteban·J. V. Perea-Calderón·O. Suárez·M. Bobrowsky·P. García-Lario
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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.

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F. M. Jiménez-Esteban, J. V. Perea-Calderón, O. Suárez, M. Bobrowsky, P. García-Lario. 2006-08-14. Nebular emission lines in IRAS 17347-3139. https://doi.org/10.1017/s1743921306003620

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