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A sensitive search for SiO maser emission in planetary nebulae

Published online by Cambridge University Press:  07 February 2024

José F. Gómez Open the ORCID record for José F. Gómez [Opens in a new window] ,
Roldán A. Cala Open the ORCID record for Roldán A. Cala [Opens in a new window] ,
Luis F. Miranda ,
Hiroshi Imai Open the ORCID record for Hiroshi Imai [Opens in a new window] ,
Mayra Osorio  and
Guillem Anglada
José F. Gómez*
Affiliation:
Instituto de Astrofísica de Andalucía, CSIC, E-18008 Granada, Spain.
Roldán A. Cala
Affiliation:
Instituto de Astrofísica de Andalucía, CSIC, E-18008 Granada, Spain.
Luis F. Miranda
Affiliation:
Instituto de Astrofísica de Andalucía, CSIC, E-18008 Granada, Spain.
Hiroshi Imai
Affiliation:
Amanogawa Galaxy Astronomy Research Center, Graduate School of Science and Engineering, Kagoshima University, Kagoshima 890-0065, Japan Center for General Education, Institute for Comprehensive Education, Kagoshima University, Kagoshima 890-0065, Japan
Mayra Osorio
Affiliation:
Instituto de Astrofísica de Andalucía, CSIC, E-18008 Granada, Spain.
Guillem Anglada
Affiliation:
Instituto de Astrofísica de Andalucía, CSIC, E-18008 Granada, Spain.
*
email: [email protected]
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Abstract

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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.

Keywords

masersplanetary nebulae: generalstars: AGB and post-AGBstars: mass loss
Type
Poster Paper
Information
Proceedings of the International Astronomical Union , Volume 18 , Symposium S380: Cosmic Masers: Proper Motion toward the Next-Generation Large Projects , December 2022 , pp. 374 - 376
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Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution and reproduction, provided the original article is properly cited.
Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

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