Results 101 to 110 of about 895,436 (365)
Barium Abundances from the LAMOST Medium-Resolution Survey Stellar Spectra
The Astrophysical Journal Supplement SeriesBased on a template-matching method, we estimate the barium (Ba) abundances for stellar spectra from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) Medium-Resolution Spectroscopic Survey (MRS).
Tian-Yi Chen +9 more
doaj +1 more source
New and updated stellar parameters for 90 transit hosts. The effect of the surface gravity
, 2013 Context. Precise stellar parameters are crucial in exoplanet research for correctly determining of the planetary parameters. For stars hosting a transiting planet, determining of the planetary mass and radius depends on the stellar mass and radius, which
Adibekyan, V. Zh. +7 more
core +1 more source
Evolution Of Galaxies .2. Chemical Evolution Coefficients [PDF]
, 1973 NSF GP-18355, GP ...
Arnett, W. David, Talbot, Raymond. J.
core +1 more source
Stellar abundances and ages for metal-rich Milky Way globular clusters - Stellar parameters and el [PDF]
, 2008 Context. Metal-rich globular clusters provide important tracers of the formation of our Galaxy. Moreover, and not less important, they are very important calibrators for the derivation of properties of extra-galactic metal-rich stellar populations ...
S. Feltzing +8 more
semanticscholar +1 more source
FEBS Letters, EarlyView.This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley +1 more source
Ruthenium and hafnium abundances in giant and dwarf barium stars
, 2007 We present abundances for Ru and Hf, compare them to abundances of other heavy elements, and discuss the problems found in determining Ru and Hf abundances with laboratory gf-values in the spectra of barium stars.
Allen +31 more
core +1 more source
Exploring masses and CNO surface abundances of red giant stars [PDF]
, 2015 A grid of evolutionary sequences of stars in the mass range $1.2$-$7$ M$_{\odot}$, with solar-like initial composition is presented. We focus on this mass range in order to estimate the masses and calculate the CNO surface abundances of a sample of ...
Eid, Mounib El, Halabi, Ghina M.
core +2 more sources
A Concise Treatise on Converting Stellar Mass Fractions to Abundances to Molar Ratios [PDF]
, 2022 Natalie R. Hinkel +2 more
openalex +1 more source
Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing
FEBS Letters, EarlyView.Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley +1 more source
The Astrophysical JournalMeasurements of lithium (Li) abundances in solar-type stars have shown that standard models of stellar evolution are incapable of explaining the observed depletion as a function of stellar age.
Henrique Reggiani +6 more
doaj +1 more source