Results 51 to 60 of about 52,634 (236)
The Abundance Pattern in the Hot ISM of NGC 4472: Insights and Anomalies [PDF]
, 2010 Important clues to the chemical and dynamical history of elliptical galaxies are encoded in the abundances of heavy elements in the X-ray emitting plasma.
Davis, David, Loewenstein, Michael
core +3 more sources
The Impact of Initial Composition on Massive Star Evolution and Nucleosynthesis
The Astrophysical JournalWe study the sensitivity of presupernova evolution and supernova nucleosynthesis yields of massive stars to variations of the initial composition. We use the solar abundances from Lodders, and compute two different sets of initial stellar compositions ...
Christopher West +4 more
doaj +1 more source
Journal of Applied Ecology, EarlyView.Our results point to the importance of taking management decisions for these forests considering regional conditions as well as forest type. The provided list of soil keystone taxa should be taken into account in future research and soil monitoring, which is essential for sustainable management of land.
Concha Cano‐Díaz +10 more
wiley +1 more source
MMT observations of new extremely metal-poor emission-line galaxies in the Sloan Digital Sky Survey
, 2007 We present 6.5-meter MMT spectrophotometry of 20 H II regions in 13 extremely metal-poor emission-line galaxies selected from the Data Release 5 of the Sloan Digital Sky Survey to have [O III] 4959/Hbeta < 1 and [N II] 6583/Hbeta < 0.05.
Stasinska G. +2 more
core +1 more source
The Astrophysical JournalWe present the elemental abundances and ages of 19 massive quiescent galaxies at z ∼ 1.4 and z ∼ 2.1 from the Keck Heavy Metal Survey. The ultradeep LRIS and MOSFIRE spectra were modeled using a full-spectrum stellar population fitting code with variable
Aliza G. Beverage +13 more
doaj +1 more source
International Journal of Urban and Regional Research, EarlyView.Abstract In this article we apply Wacquant's conceptualization of the ghetto to an analysis of interviews conducted with Roma people living in the state‐enforced camps of Turin, Italy. We illustrate how the elements characterizing a ghetto according to Wacquant (i.e.
Vincenzo Romania, Tommaso Bertazzo
wiley +1 more source
Milky Way’s Metal-poor Stars Display Chemical Transition near the Solar Radius
The Astrophysical Journal LettersThe metal-poor stars of a galaxy offer insights into that galaxy’s early formation processes and accretion history. Here, we investigate whether the metal-poor stars of our Milky Way Galaxy exhibit any characteristic trends in Galactocentric distance ...
Khyati Malhan
doaj +1 more source
JWST/NIRSpec Measurements of Extremely Low Metallicities in High Equivalent Width Lyα Emitters
The Astrophysical Journal, 2023 Deep Very Large Telescope/MUSE optical integral field spectroscopy has recently revealed an abundant population of ultra-faint galaxies ( M _UV ≈ −15; 0.01 L _⋆ ) at z = 2.9−6.7 due to their strong Ly α emission with no detectable continuum.
Michael V. Maseda +21 more
doaj +1 more source
Spatial Dynamics and Lifespan of Adult Cicadas After Fire and Logging: A Radiotracking Study
Integrative Zoology, EarlyView.This study investigates the effects of wildfire and post‐fire salvage logging on the survival, spatial behavior, and habitat selection of Lyristes plebejus cicadas in Mediterranean pine forests. A total of 63 cicadas were captured, tagged with radio transmitters, and released in three disturbance contexts: burnt‐logged, burnt‐unlogged, and unburnt ...
Carles Tobella +4 more
wiley +1 more source
From Carbon to Cobalt: Chemical Compositions and Ages of z ∼ 0.7 Quiescent Galaxies
The Astrophysical Journal, 2023 We present elemental abundance patterns (C, N, Mg, Si, Ca, Ti, V, Cr, Fe, Co, and Ni) for a population of 135 massive quiescent galaxies at z ∼ 0.7 with ultra-deep rest-frame optical spectroscopy drawn from the LEGA-C survey.
Aliza G. Beverage +7 more
doaj +1 more source