Results 101 to 110 of about 180,740 (304)
A New Method for the Asteroseismic Determination of the Evolutionary State of Red-Giant Stars [PDF]
, 2016 Determining the ages of red-giant stars is a key problem in stellar astrophysics. One of the difficulties in this determination is to know the evolutionary state of the individual stars -- i.e. have they started to burn Helium in their cores? That is the
Basu, Sarbani +3 more
core +2 more sources
Lithium abundance in lower red giant branch stars of Omega Centauri [PDF]
Astronomy & Astrophysics, 2018 We present Li, Na, Al, and Fe abundances of 199 lower red giant branch star members of the stellar system Omega Centauri, using high-resolution spectra acquired with FLAMES at the Very Large Telescope. The A(Li) distribution is peaked at A(Li) ∼ 1 dex with a prominent tail towards lower values.
Mucciarelli, A. +5 more
openaire +6 more sources
The Depositional Record, EarlyView.Five large Alpine cave systems on the Dachstein (Austria) were investigated and 35 sediment profiles or outcrops between 860 m a.s.l. and 1945 m a.s.l. were analysed. An altitude‐dependent overall stratigraphy is established and depositional conditions and palaeo‐environments are reconstructed.
Franziska Holzer +2 more
wiley +1 more source
The Astrophysical Journal LettersDetermining the evolutionary stage of stars is crucial for understanding the evolution of exoplanetary systems. In this context, red giant branch (RGB) and red clump (RC) stars, which formed at stages in the later evolution of stars situated before and ...
Wen-Xu Lin, Sheng-Bang Qian, Li-Ying Zhu
doaj +1 more source
A sequence of nitrogen-rich very red giants in the globular cluster NGC 1851
, 2014 We present the abundances of N in a sample of 62 stars on the red giant branch (RGB) in the peculiar globular cluster NGC 1851. The values of [N/Fe] ratio were obtained by comparing the flux measured in the observed spectra with that from synthetic ...
Carretta, Eugenio +3 more
core +1 more source
A BAYESIAN APPROACH TO LOCATING THE RED GIANT BRANCH TIP MAGNITUDE. I. [PDF]
The Astrophysical Journal, 2011 11 pages, 18 ...
Nicolas F. Martin +13 more
openaire +6 more sources
Dynamic expression of lamin B1 during adult neurogenesis in the vertebrate brain
Developmental Dynamics, EarlyView.Abstract Background In mammals, specific brain regions such as the dentate gyrus (DG) of the hippocampus and the subventricular zone (SVZ) of the lateral ventricles harbor adult neural stem/progenitor cells (ANSPCs) that give rise to new neurons and contribute to structural and functional brain plasticity.
Diana Zhilina +12 more
wiley +1 more source
Inherited metabolic epilepsies–established diseases, new approaches
Epilepsia Open, EarlyView.Abstract Inherited metabolic epilepsies (IMEs) represent the inherited metabolic disorders (IMDs) in which epilepsy is a prevailing component, often determining other neurodevelopmental outcomes associated with the disorder. The different metabolic pathways affected by individual IMEs are the basis of their rarity and heterogeneity.
Itay Tokatly Latzer, Phillip L. Pearl
wiley +1 more source
Post-AGB Binaries as Interacting Systems
GalaxiesWe present recent progress in our understanding of the physical interaction mechanisms at work in evolved binaries of low-to-intermediate initial mass, which are surrounded by a stable disc of gas and dust.
Hans Van Winckel
doaj +1 more source
iMetaOmics, EarlyView.Recovering high‐contiguity, circular bacterial genomes from complex microbiomes (e.g., gut) is challenged by limitations of short‐read and error‐prone long‐read sequencing. This study comprehensively compares PacBio High‐Fidelity (HiFi) sequencing‐based metagenome‐assembled genomes (MAGs) against Illumina MAGs, Oxford Nanopore Technologies (ONT) MAGs ...
Feilong Deng +7 more
wiley +1 more source