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The discovery of hidden jets in planetary nebulae

Published online by Cambridge University Press:  06 October 2025

J. S. Rechy-García Open the ORCID record for J. S. Rechy-García [Opens in a new window] ,
M. A. Guerrero ,
J. A. Toalá ,
D. R. Gonçalves ,
S. Cazzoli ,
G. Ramos-Larios Open the ORCID record for G. Ramos-Larios [Opens in a new window] ,
L. Sabin Open the ORCID record for L. Sabin [Opens in a new window] ,
E. I. Santamaría ,
V. M. A. Gómez-González  and
S. Akras Open the ORCID record for S. Akras [Opens in a new window]
J. S. Rechy-García*
Affiliation:
Valongo Observatory, Federal University of Rio de Janeiro, Brazil
M. A. Guerrero
Affiliation:
Instituto de Astrofísica de Andalucía, España
J. A. Toalá
Affiliation:
Instituto de Radioastronomía y Astrofísica, Mexico
D. R. Gonçalves
Affiliation:
Valongo Observatory, Federal University of Rio de Janeiro, Brazil
S. Cazzoli
Affiliation:
Instituto de Astrofísica de Andalucía, España
G. Ramos-Larios
Affiliation:
Universidad de Guadalajara, Mexico
L. Sabin
Affiliation:
Instituto de Astronomía, Mexico
E. I. Santamaría
Affiliation:
Instituto de Radioastronomía y Astrofísica, Mexico
V. M. A. Gómez-González
Affiliation:
Institute for Physics and Astronomy, Universität Potsdam, Germany
S. Akras
Affiliation:
Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing, National Observatory of Athens, Greece
*
email: jrechygarcia@gmail.com
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Abstract

Almost 80% of mature planetary nebulae (PNe) have non spherical symmetry. Small-scale torii, knots, filaments and jets, frequently of low-ionization, were found embedded in PNe large-scale structures. In particular, the presence of stellar jets has been investigated through morpho-kinematic studies of PNe, from narrow-band imagery and high-dispersion long-slit spectroscopic observations. However, the latter technique is limiting the understanding of the global 3D structure of the PNe. MEGARA – the optical IFU attached to the 10.4-m Gran Telescopio Canarias – provides the ideal data to study the 3D morpho-kinematic structure of PN, allowing to discover, young jets “hidden” in the nebula. The access to the early evolution and interaction of these jets with the nebular envelope give us the opportunity of elucidating the formation of the non-spherical morphologies observed in most nebulae. We will present the results obtained from the MEGARA, unveiling for the first time hidden jets embedded in the ionized nebular envelope of NGC 2392, HuBi 1, M 2-31, M 3-38.

Keywords

ISM: kinematics and dynamicsISM: jets and outflowsplanetary nebulae

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. 320 - 323
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Copyright
© The Author(s), 2025. Published by Cambridge University Press on behalf of International Astronomical Union

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