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Discovery of hide-clumps of molecular hydrogen in the Owl nebula

Published online by Cambridge University Press:  06 October 2025

G. Ramos-Larios Open the ORCID record for G. Ramos-Larios [Opens in a new window] ,
M. A. Guerrero ,
J. A. Toalá ,
S. Akras Open the ORCID record for S. Akras [Opens in a new window]  and
X. Fang
G. Ramos-Larios*
Affiliation:
Instituto de Astronomía y Meteorología, CUCEI, Universidad de Guadalajara, Mexico
M. A. Guerrero
Affiliation:
Instituto de Astrofsica de Andaluca, IAA-CSIC, Granada, Spain
J. A. Toalá
Affiliation:
Instituto de Radioastronomía y Astrofísica, UNAM, Morelia, Mich., Mexico
S. Akras
Affiliation:
Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing, Penteli, Greece
X. Fang
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China
*
email: gerardo.astro@gmail.com
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Abstract

The recent acquisition of high-quality deep images of planetary nebulae (PNe) in world-class telescopes has allowed the detection for the first time of a wealth of small-scale morphological features and structures that highlight the complexity of their formation history and the physical processes modeling them. In this work we present the discovery of a series of clumps embedded within the ionized nebular shell of the evolved PN NGC 3587, the Owl Nebula, that had escaped previous detections. The multi-wavelength analysis provided by GEMINI, NOT and Aristarchos in the optical and CFHT and Spitzer infrared images indicates that these clumps are formed by denser and colder material, with a notable content of molecular H2.

Keywords

(ISM:) planetary nebulae: generalplanetary nebulae: individual: NGC 3587ISM: moleculesISM: jets and outflowsISM: lines and bandsinfrared: ISM

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. 435 - 437
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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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