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Analysis of distances to planetary nebulae

Published online by Cambridge University Press:  06 October 2025

Diego Hernández-Juárez ,
Mónica Rodríguez  and
Miriam Peña
Diego Hernández-Juárez*
Affiliation:
Instituto de Astronomía, Universidad Nacional Autónoma de México, Apdo. Postal 70264, Ciudad de México, Mexico
Mónica Rodríguez
Affiliation:
Instituto Nacional de Astrofísica, Óptica y Electrónica, Luis Enrique Erro 1, Tonantzintla 72840, Puebla, México.
Miriam Peña
Affiliation:
Instituto de Astronomía, Universidad Nacional Autónoma de México, Apdo. Postal 70264, Ciudad de México, Mexico
*
email: dbhernandez@astro.unam.mx
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Abstract

We compare different estimates of distances to planetary nebulae (PNe), namely, Gaia parallaxes and statistical values, in order to determine the most reliable distance for each PN. In numerous instances, we find that the distances derived from the Gaia parallaxes are not the most reliable, and that better estimates can be obtained from the median of the available statistical values. Our resulting distances imply that the distributions of distances from the Galactic plane of PNe with [WR] central stars is different from the distributions of both non-[WR] hydrogen-poor central stars and hydrogen-rich central stars.

Keywords

planetary nebulae: generalstars: distancescatalogs

Information

Type
Contributed 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. 31 - 35
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Copyright
© The Author(s), 2025. Published by Cambridge University Press on behalf of International Astronomical Union

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