Results 41 to 50 of about 3,859 (142)

Abundance Gradients in the Galaxy

open access: yesThe Astrophysical Journal Supplement Series, 2006
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

open access: yes, 2021
9 pages, 7 figures, accepted for publication in ...
Dors, L, O.
openaire   +2 more sources

DIRECT OXYGEN ABUNDANCES FOR LOW-LUMINOSITY LVL GALAXIES [PDF]

open access: yesThe Astrophysical Journal, 2012
67 pages, 9 figures, 9 tables; accepted for publication in ...
Berg, Danielle A.   +9 more
openaire   +3 more sources

Subterranean environments contribute to three‐quarters of classified ecosystem services

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1582-1605, June 2026.
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]

open access: yesScience, 2009
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

open access: yesReviews of Geophysics, Volume 64, Issue 2, June 2026.
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”

open access: yesAnthropology and Humanism, Volume 51, Issue 1, June 2026.
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

Morphometric and External Injury Characterization of Rainbow Trout (O. mykiss) Used for Stocking in the Alpine River Inn (Bavaria, Germany)

open access: yesFisheries Management and Ecology, Volume 33, Issue 3, Page 452-462, June 2026.
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]

open access: yes, 2006
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 ...
openaire   +1 more source

The first galaxies: clues from element abundances [PDF]

open access: yesPhilosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2000
15 pages, LaTex, 8 Postscript Figures.
openaire   +2 more sources

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