Results 41 to 50 of about 3,859 (142)
Abundance Gradients in the Galaxy
Six H II regions at galactocentric distances of R = 10-15 kpc have been observed in the far-IR emission lines of [O III] (52 μm, 88 μm), [N III] (57 μm), and [S III] (19 μm) using the Kuiper Airborne Observatory. These observations have been combined with Very Large Array radio continuum observations of these sources to determine the abundances of O++,
Alexander L. Rudolph +6 more
openaire +1 more source
Chemical abundances in Seyfert galaxies VI. Empirical abundance calibration
9 pages, 7 figures, accepted for publication in ...
Dors, L, O.
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DIRECT OXYGEN ABUNDANCES FOR LOW-LUMINOSITY LVL GALAXIES [PDF]
67 pages, 9 figures, 9 tables; accepted for publication in ...
Berg, Danielle A. +9 more
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Subterranean environments contribute to three‐quarters of classified ecosystem services
ABSTRACT Beneath the Earth's surface lies a network of interconnected caves, voids, and systems of fissures forming in rocks of sedimentary, igneous, or metamorphic origin. Although largely inaccessible to humans, this hidden realm supports and regulates services critical to ecological health and human well‐being.
Stefano Mammola +30 more
wiley +1 more source
Dust Formation in a Galaxy with Primitive Abundances [PDF]
Interstellar dust plays a crucial role in the evolution of galaxies. It governs the chemistry and physics of the interstellar medium. In the local universe, dust forms primarily in the ejecta from stars, but its composition and origin in galaxies at very early times remain controversial.
Sloan, G C +8 more
openaire +4 more sources
Terrestrial Analogs to Titan for Geophysical Research
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon +21 more
wiley +1 more source
Minor epic: Notes toward a different “Anthropoetry”
Abstract Anthropologists have often turned to poetry as a means of accessing emotional registers of which conventional academic prose is unable to avail. In doing so, they have tacitly conflated poetry with lyric poetry, today probably the most widely practiced poetic genre, associated in particular with the expression of inner feelings and subjectival
Stuart McLean
wiley +1 more source
ABSTRACT Stocking fish is a common practice in fisheries management, particularly for species of high conservation value or economic importance. Despite its widespread use, systematic evaluation of fish stockings remains scarce. This includes non‐native species such as rainbow trout (Oncorhynchus mykiss), which are intensively stocked into European ...
Christoffer Nagel +4 more
wiley +1 more source
Abundances in Damped Lyα Galaxies [PDF]
Damped Lyα galaxies provide a sample of young galaxies where chemical abundances can be derived throughout the whole universe with an accuracy comparable to that for the local universe. Despite a large spread in redshift, HI column density and metallicity, DLA galaxies show a remarkable uniformity in the elemental ratios rather suggestive of similar ...
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The first galaxies: clues from element abundances [PDF]
15 pages, LaTex, 8 Postscript Figures.
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