Results 31 to 40 of about 334 (140)
OXYGEN ABUNDANCE MEASUREMENTS OF SHIELD GALAXIES [PDF]
The Astrophysical Journal, 2015 Astrophysical Journal, in ...
Haurberg, Nathalie C. +3 more
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Abundance Gradients in the Galaxy
The 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
Metal Abundances of KISS Galaxies. III. Nebular Abundances for Fourteen Galaxies and the Luminosity‐Metallicity Relationship for H
The Astrophysical Journal, 2004 36 pages, 5 figures.
Lee, Janice C. +2 more
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Chemical abundances of LINER galaxies – nitrogen abundance estimations
Monthly Notices of the Royal Astronomical SocietyABSTRACT In this work, we investigated the nitrogen and oxygen abundances in a sample of galaxies with Low Ionization Nuclear Emission Regions (LINERs) in their nucleus. Optical spectroscopic data (3600 – 10 000 Å) of 40 LINERs from the Mapping Nearby Galaxies (MaNGAs) survey were considered.
C B Oliveira +7 more
openaire +3 more sources
The elemental abundance pattern in a galaxy at z = 2.626 [PDF]
Nature, 2003 The discovery of metal-poor stars (where metal is any element more massive than helium) has enabled astronomers to probe the chemical enrichment history of the Milky Way. More recently, element abundances in gas inside high-redshift galaxies has been probed through the absorption lines imprinted on the spectra of background quasars, but these have ...
Prochaska, Jason X. +2 more
openaire +3 more sources
CARBON AND NITROGEN ABUNDANCES IN EARLY-TYPE GALAXIES [PDF]
The Astrophysical Journal, 2009 For the first time, we undertake a systematic examination of the nitrogen abundances for a sample of 35 early-type galaxies spanning a range of masses and local environment. The nitrogen-sensitive molecular feature at 3360Åhas been employed in conjunction with a suite of atomic- and molecular-sensitive indices to provide unique and definitive ...
Toloba, E. +3 more
openaire +3 more sources
On the oxygen abundance in our Galaxy [PDF]
Astronomy & Astrophysics, 2003 7 pages, 2 figures, accepted for publication in Astronomy and ...
Pilyugin, L. S. +2 more
openaire +2 more sources
Abundance jump in the inner bulges of galaxies [PDF]
Symposium - International Astronomical Union, 1993 The metallicity difference of about an order between the kinematically decoupled nuclei and the surrounding bulges is found in 3 spiral galaxies possessing an axisymmetric potential in their centres.
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Abundance ratios in hierarchical galaxy formation [PDF]
Astrophysics and Space Science, 1999 7 pages, 3 figures, accepted by ...
openaire +5 more sources
Cell Proliferation, EarlyView.Polyamine metabolism is innervation responsive and involved in denervation‐induced muscle atrophy. Inhibition of polyamine metabolism attenuates muscle atrophy by restraining proteolysis and preserving MuSCs homeostasis. Denervation‐induced activation of FAP‐derived FGF7 drives premature MuSCs activation, while DFMO suppresses this paracrine cue to ...
Mingming Zhang +9 more
wiley +1 more source