Results 31 to 40 of about 399 (137)

The structure of planetary nebulae: theory vs. practice

, 2006
Context.This paper is the first in a short series dedicated to the long-standing astronomical problem of de-projecting the bi-dimensional, apparent morphology of a three-dimensional mass of gas.
S. Benetti, F. Sabbadin, E. Cappellaro, R. Ragazzoni, M. Turatto   +4 more
core   +1 more source

New planetary nebulae with ISM interaction discovered with IPHAS [PDF]

, 2011
The low surface brightness usually associated with nebulae mixing with the ISM has long been a substantial obstacle in the observation and statistical study of these interactions.
Mampaso, Antonio, Zijlstra, Albert A., Parker, Quentin A., Parker, Quentin, Sabin, Laurence, Corradi, Romano L M, Zijlstra, Albert; id_orcid   +6 more
core   +1 more source

The effect of terrestrial weathering on the mineralogy and petrologic (sub)types of CM chondrites explored by kinetic modeling and laboratory experiments

Meteoritics &Planetary Science, Volume 61, Issue 5, Page 874-897, May 2026.
Abstract Terrestrial weathering alters the chemical and isotopic composition, and mineralogy, of meteorites; its effects on ordinary chondrites are well‐studied, but relatively little is known about the susceptibility of carbonaceous chondrites. We combined laboratory experiments, whereby Chwichiya 002 (C3‐ung find), Murchison (CM2 fall) and Kolang ...
Robin L. Haller, Martin R. Lee, Mark E. Hodson   +2 more
wiley   +1 more source

Deciphering the “Missing Xenon Paradox” in Celestial Bodies: A Multifaceted Perspective Toward Demystifying This Enigma

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract Xenon (Xe) is a heavy noble gas with intriguing chemical properties, such as having several stable isotopes and the ability to form compounds under extreme conditions. Despite the predictions based on cosmochemical models that suggest xenon should be relatively abundant in planetary reservoirs, empirical data indicate a significant depletion ...
Avinash Kumar Both, Avradip Ghosh, Chin Li Cheung   +2 more
wiley   +1 more source

PHANGS-MUSE: Detection and Bayesian classification of 40000 ionised nebulae in nearby spiral galaxies

, 2023
In this work, we present a new catalogue of >40 000 ionised nebulae distributed across the 19 galaxies observed by the PHANGS-MUSE survey. The nebulae have been classified using a new model-comparison-based algorithm that exploits the odds ratio ...
Pan, Hsi-an
core   +1 more source

The evolution of planetary nebulae

, 2013
Context. The visibility time of planetary nebulae (PNe) in stellar systems is an essential quantity for estimating the size of a PN population in the context of general population studies.
R. Jacob, M. Steffen, D. Schönberner
core   +1 more source

Jungian categories as modes of reading: The case of Graham Greene's The Heart of the Matter and Aldous Huxley's Time Must Have a Stop

Orbis Litterarum, Volume 81, Issue 2, Page 89-110, April 2026.
Abstract This essay advocates renewed attention toward Jungian literary criticism, emphasizing its unique and creative perspectives on both fictional worlds and on reading. A fresh turn to Jungian criticism offers, in particular, valuable insight for texts on the peripheries of the canon.
Edsel Parke
wiley   +1 more source

Emerging planetary nebulae within 3D spiral patterns

, 2023
We present the first 3D radiation-hydrodynamic simulations of the formation of planetary nebulae (PNe) emerging from 3D spiral patterns. We use the GUACHO code to create 3D spiral structures as a consequence of the distortions on the geometry of the ...
Guerrero, Martín A., González-Carbajal, J. I., J I González-Carbajal, A Esquivel, J A Toalá, M A Guerrero, Ramos-Larios, G., V Lora, G Ramos-Larios, Toalá, Jesús A., Esquivel, A., Lora, V.   +11 more
core   +1 more source

Discovery and Initial Investigation of a New Low Surface Brightness Planetary Nebula Candidate at High Galactic Latitude

Astronomische Nachrichten, Volume 347, Issue 3, March 2026.
ABSTRACT Planetary nebulae represent a late evolutionary phase of low‐ to intermediate‐mass stars. In this article, we present the serendipitous discovery of a previously unknown, faint potential Galactic planetary nebula (PN) in the constellation Camelopardalis, identified during a survey‐inspection, aiming at the detection of dwarf companions of the ...
W. E. Celnik, P. Köchling, S. Kotov, J. Kozok, Y. Galata, L. Magrini, A. Moiseev, M. Nischang, C. Reese, P. Remmel, P. Riepe, T. Zilch, K. Werner   +12 more
wiley   +1 more source

Winds, Bubbles, and Outflows in Planetary Nebulae

, 2003
The aim of this work is to highlight the contributions that John Dyson has made to the study of the interstellar medium in general and, in particular, to the field of planetary nebulae.
J. A. Lopez
core