Results 71 to 80 of about 172,889 (233)
Orbis Litterarum, EarlyView.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
Molecular Hydrogen Microstructures in Planetary Nebulae
Galaxies, 2020 Molecular hydrogen (H 2 ) emission is commonly detected in planetary nebulae (PNe), specially in objects with bipolar morphologies. New studies showed that H 2 gas is also packed in microstructures embedded in PNe of any morphological type.
Stavros Akras +3 more
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Catalog of Planetary Nebulae Detected by GALEX and Corollary Optical Surveys
The Astrophysical Journal Supplement Series, 2023 Planetary nebulae (PNs) consist of an ionized envelope surrounding a hot central star (CSPN) that emits mostly at ultraviolet (UV) wavelengths. UV observations, therefore, provide important information on both the CSPN and the nebula. We have matched the
M. A. Gómez-Muñoz +2 more
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Chemical abundances in Galactic planetary nebulae with Spitzer spectra [PDF]
, 2014 We present new low-resolution (R ∼ 800) optical spectra of 22 Galactic planetary nebulae (PNe) with Spitzer spectra. These data are combined with recent optical spectroscopic data available in the literature to construct representative samples of compact
D. A. García-Hernández, S. Górny
semanticscholar +1 more source
Physiology of nitrogen: A life or death matter
Experimental Physiology, EarlyView.Abstract With each breath, four out of every five molecules we inspire are nitrogen (N2), since this gas constitutes ∼80% of the atmospheric air that surrounds us. Despite its abundance and unlike molecular oxygen, N2 has traditionally held less appeal among physiologists given its lack of reactivity and corresponding inability to support combustion or
Damian M. Bailey +2 more
wiley +1 more source
What do we really know about the low-ionization structures in planetary nebulae? [PDF]
, 2023 S. Akras
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PAH formation in O-rich planetary nebulae [PDF]
, 2014 Polycyclic aromatic hydrocarbons (PAHs) have been observed in O-rich planetary nebulae towards the Galactic Bulge. This combination of oxygen-rich and carbon-rich material, known as dual-dust or mixed chemistry, is not expected to be seen around such ...
L. Guzman-Ramirez +4 more
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Rapid Communications in Mass Spectrometry, Volume 39, Issue 23, 15 December 2025.ABSTRACT Background Obtaining isotopic data on soluble organic compounds, such as amino acids, in extraterrestrial samples is crucial for understanding their origins, prebiotic chemistry, and potential contamination. Conventional GC‐IRMS requires grams of material to measure isotopic compositions, limiting the analysis of low‐concentration organics in ...
O. M. McIntosh +9 more
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Ionization correction factors for planetary nebulae – I. Using optical spectra [PDF]
, 2014 We compute a large grid of photoionization models that covers a wide range of physical parameters and is representative of most of the observed PNe. Using this grid, we derive new formulae for the ionization correction factors (ICFs) of He, O, N, Ne, S ...
G. Delgado-Inglada +6 more
semanticscholar +1 more source
Lawnmower Poetry and the Poetry of Lawnmowers
Critical Quarterly, EarlyView.
Francesca Gardner
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