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- Title
A sensitive search for SiO maser emission in planetary nebulae.
- Authors
Gómez, José F.; Cala, Roldán A.; Miranda, Luis F.; Imai, Hiroshi; Osorio, Mayra; Anglada, Guillem
- Abstract
Eight planetary nebulae (PNe) are known to emit OH and/or H2O masers, but there is no report of an SiO maser in this type of objects. We present a search for SiO masers in 16 confirmed and candidate PNe, carried out with the Australia Telescope Compact Array. We found no evidence of association between SiO masers and PNe in our data. Previous detections of thermal SiO emission in PNe show that these molecules can be present in gas phase in this type of objects, but it is not yet clear whether they can be found where the physical conditions are appropriate for maser pumping. We suggest that the best candidates for a new search would be PNe showing high-velocity outflows.
- Subjects
MASERS; PLANETARY nebulae; ASYMPTOTIC giant branch stars; BIPOLAR outflows (Astrophysics)
- Publication
Proceedings of the International Astronomical Union, 2022, Vol 18, Issue S380, p374
- ISSN
1743-9213
- Publication type
Article
- DOI
10.1017/S1743921323002247