OH maser-emitting planetary nebulae (OHPNe)
| Autor: | Roldán A. Cala, José F. Gómez, Luis F. Miranda |
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| Rok vydání: | 2022 |
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| DOI: | 10.5281/zenodo.7034102 |
| Popis: | OHPNe are considered nascent planetary nebulae (PNe). In fact, only 6 OHPNe are known to date. We processed ~300 h of radio interferometric data, and identified 4 new OHPNe candidates. Also, we show the unexpected C-rich nature of a central star that ejected an O-rich (C/O ~0.3) circumstellar nebula. This source is the OHPN Vy 2-2. We use CARMENES spectrum to confirm its nature as a nascent PN. RC, JFG, and LFM acknowledge support from grant PID2020-114461GB-I00 and the "Center of Excellence Severo Ochoa" award for the Instituto de Astrofísica de Andalucía (SEV-2017-0709), funded by MCIN/ AEI /10.13039/501100011033. RC is also supported by the predoctoral grant PRE2018-085518, funded by MCIN/AEI/ 10.13039/501100011033 and by ESF Investing in your future. This work is also partially supported by grants R18-RT-3082 (IAA4SKA) and P20-00880, funded by the Economic Transformation, Industry, Knowledge and Universities Council of the Regional Government of Andalusia and the European Regional Development Fund from the European Union. |
| Databáze: | OpenAIRE |
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