Results 1 to 10 of about 174,483 (232)
Infrared Observations of Planetary Nebulae and Related Objects [PDF]
Galaxies, 2020 In this paper, I present how near and mid-infrared observations can be used for the study of planetary nebulae and related objects. I present the main observing techniques, from the ground and space, highlighting main differences and how they can be ...
Eric Lagadec
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The Formation of Fullerenes in Planetary Nebulae
Galaxies, 2018 In the last decade, fullerenes have been detected in a variety of astrophysical environments, with the majority being found in planetary nebulae. Laboratory experiments have provided us with insights into the conditions and pathways that can lead to ...
Jan Cami +4 more
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Planetary Nebulae: Sources of Enlightenment [PDF]
Publications of the Astronomical Society of the Pacific, 2021 In this review/tutorial we explore planetary nebulae as a stage in the evolution of low-to-intermediate-mass stars, as major contributors to the mass and chemical enrichment of the interstellar medium, and as astrophysical laboratories.
K. Kwitter, R. Henry
semanticscholar +1 more source
Emerging Minds Journal for Student Research, 2023 This project compares two planetary nebulae (NGC 1514 and NGC 40) and studies the difference between them in their chemical composition. Observations of the two planetary nebulae were done at Clanfield Observatory with the 24-inch Ritchey-Chrétien ...
Shahd Eliwa
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Lessons from the Ionised and Molecular Mass of Post-CE PNe
Galaxies, 2022 Close binary evolution is widely invoked to explain the formation of axisymmetric planetary nebulae after a brief common envelope phase. The evolution of the primary would be interrupted abruptly, its still quite massive envelope being fully ejected to ...
Miguel Santander-García +4 more
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Abell 30 - A binary central star among the born-again planetary nebulae [PDF]
, 2020 Eight planetary nebulae have been identified as `born-again', a class of object typified by knotty secondary ejecta having low masses ($\sim$$10^{-4}$ M$_{\odot}$) with nearly no hydrogen.
G. Jacoby, T. Hillwig, David Jones
semanticscholar +1 more source
A new radio molecular line survey of planetary nebulae [PDF]
Astronomy & Astrophysics, 2019 Certain planetary nebulae (PNe) contain shells, filaments, or globules of cold gas and dust whose heating and chemistry are likely driven by UV and X-ray emission from their central stars and from wind-collision-generated shocks.
J. Bublitz +5 more
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The survey of planetary nebulae in Andromeda (M 31) [PDF]
Astronomy & Astrophysics, 2019 Context.The age–velocity dispersion relation is an important tool to understand the evolution of the disc of the Andromeda galaxy (M 31) in comparison with the Milky Way.Aims.We use planetary nebulae (PNe) to obtain the age–velocity dispersion relation ...
S. Bhattacharya +9 more
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Binary Central Stars of Planetary Nebulae
Galaxies, 2020 It is now clear that a vast majority of intermediate-mass stars have stellar and/or sub-stellar companions, therefore it is no longer appropriate to consider planetary nebulae as a single-star phenomenon, although some single, isolated stars may well ...
David Jones
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Properties of central stars of planetary nebulae with distances in Gaia DR2 [PDF]
Astronomy & Astrophysics, 2019 Context. We have compiled a catalogue of central stars of planetary nebulae (CSPN) with reliable distances and positions obtained from Gaia Data Release 2 (DR2) astrometry.
I. González-Santamaría +4 more
semanticscholar +1 more source