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Physics of the ionized gas in extremely young planetary nebulae

Published online by Cambridge University Press:  06 October 2025

Lucero Uscanga Open the ORCID record for Lucero Uscanga [Opens in a new window] ,
Jorge Cantó ,
James A. Green ,
José F. Gómez Open the ORCID record for José F. Gómez [Opens in a new window] ,
Guillem Anglada ,
Luis F. Miranda ,
Roldán A. Cala Open the ORCID record for Roldán A. Cala [Opens in a new window] ,
Olga Suárez  and
Panayotis Boumis
Lucero Uscanga*
Affiliation:
Departamento de Astronomía, Universidad de Guanajuato, A.P. 144, 36000 Guanajuato, Gto., Mexico
Jorge Cantó
Affiliation:
Instituto de Astronomía, UNAM, Ap. 70-264, 04510, Ciudad de México, Mexico
James A. Green
Affiliation:
ATNF, CSIRO Astronomy and Space Science, PO Box 76, Epping, NSW 1710, Australia
José F. Gómez
Affiliation:
Instituto de Astrofísica de Andalucía, CSIC, Glorieta de la Astronomía s/n, E-18008 Granada, Spain
Guillem Anglada
Affiliation:
Instituto de Astrofísica de Andalucía, CSIC, Glorieta de la Astronomía s/n, E-18008 Granada, Spain
Luis F. Miranda
Affiliation:
Instituto de Astrofísica de Andalucía, CSIC, Glorieta de la Astronomía s/n, E-18008 Granada, Spain
Roldán A. Cala
Affiliation:
Instituto de Astrofísica de Andalucía, CSIC, Glorieta de la Astronomía s/n, E-18008 Granada, Spain
Olga Suárez
Affiliation:
Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, Bd de l’Observatoire, CS 34229, F-06304 Nice cedex 4, France
Panayotis Boumis
Affiliation:
IAASARS, National Observatory of Athens, 15236 Penteli, Greece
*
email: luscag@gmail.com
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Abstract

We study the physics of the ionized gas in the last stages of evolution of low- and intermediate-mass stars that end their lives as planetary nebulae (PNe). Specifically, those that are in the earliest stages of the PN phase. For this purpose, we observed with the Australia Telescope Compact Array the spectra at radio frequencies of a sample of (H2O and/or OH) maser-emitting PNe. We determined the spectral index of the radio continuum emission of these sources and the turnover frequency of the emission, which could be tied to the age of the sources.

Keywords

masersradio continuum: starsplanetary nebulae: generalindividual: IRAS 17393–2727

Information

Type
Poster Paper
Information
Proceedings of the International Astronomical Union , Volume 19 , Symposium S384: Planetary Nebulae: A Universal Toolbox in the Era of Precision Astrophysics , December 2023 , pp. 408 - 410
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Copyright
© The Author(s), 2025. Published by Cambridge University Press on behalf of International Astronomical Union

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References

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