Results 41 to 50 of about 261,878 (239)
The galaxy clustering crisis in abundance matching [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 Abstract Galaxy clustering on small scales is significantly underpredicted by sub-halo abundance matching (SHAM) models that populate (sub-)haloes with galaxies based on peak halo mass, Mpeak. SHAM models based on the peak maximum circular velocity, Vpeak, have had much better success.
Duncan Campbell +7 more
openaire +2 more sources
, 2017 <p>This Galaxy Tour Builder web extension allows you to easily create new interactive tours for the Galaxy framework. You can record and replay any tour, update its content and preview your changes in live.
Durand, William +5 more
core +3 more sources
Constraining r-process nucleosynthesis with multi-objective Galactic chemical evolution models
Astronomy & AstrophysicsContext. The astrophysical site(s) of the rapid neutron-capture process (r-process) remains uncertain, with competing scenarios such as neutron star mergers and magneto-rotational supernovae offering different predictions for the timing, frequency, and ...
Molero M. +3 more
doaj +1 more source
Chemical abundances in Seyfert galaxies – X. Sulphur abundance estimates
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT For the first time, the sulphur abundance relative to hydrogen (S/H) in the narrow-line regions of a sample of Seyfert 2 nuclei (Sy 2s) has been derived via direct estimation of the electron temperature. Narrow emission-line intensities from the Sloan Digital Sky Survey (SDSS) Data Release 17 (DR17) [in the wavelength range 3000
Oli L Dors +14 more
openaire +3 more sources
Astronomy & AstrophysicsContext. The nuclear stellar disc (NSD) of the Milky Way is a dense, rotating stellar system in the central ~200 pc. The NSD is thought to be primarily fuelled by bar-driven gas inflows from the inner Galactic disc. Aims.
Spitoni E. +7 more
doaj +1 more source
Element Abundances In Nearby Galaxies [PDF]
, 2004 In these lectures I present a highly opinionated review of the observed patterns of metallicity and element abundance ratios in nearby spiral, irregular, and dwarf elliptical galaxies, with connection to a number of astrophysical issues associated with chemical evolution.
openaire +2 more sources
CUMULATIVE OXYGEN ABUNDANCES OF SPIRAL GALAXIES [PDF]
The Astrophysical Journal, 2012 14 pages, 7 figures, 5 ...
Dack, Stuart, McCall, Marshall L.
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The Origin of the Nuclear Star-forming Ring in NGC 3182
The Astronomical Journal, 2023 We investigate the stellar and ionized gas kinematics, and stellar populations of NGC 3182 galaxy using integral field spectrograph data from the Calar Alto Legacy Integral Field Area survey. We try to clarify the nature of the ring structure in NGC 3182.
Mina Pak +3 more
doaj +1 more source
The Astrophysical Journal, 2023 We investigate the mass–metallicity relationship of star-forming galaxies by analyzing the absorption line spectra of ∼200,000 galaxies in the Sloan Digital Sky Survey.
Eva Sextl +3 more
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OXYGEN ABUNDANCE MEASUREMENTS OF SHIELD GALAXIES [PDF]
The Astrophysical Journal, 2015 Astrophysical Journal, in ...
Haurberg, Nathalie C. +3 more
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