Results 91 to 100 of about 2,377,840 (304)
A homogeneous view of asymptotic giant branch carbon stars as seen by Gaia
Astronomy & AstrophysicsContext. Carbon stars on the asymptotic giant branch are major contributors to the dust enrichment of galaxies, with gas mass-loss rate values up to Ṁ ≈ 10−4 M⊙ yr−1. They represent the final evolutionary stage of low- and intermediate-mass stars, during
Liberatori A. +14 more
doaj +1 more source
Abundances in J-Type Carbon Stars [PDF]
International Astronomical Union Colloquium, 1988 It has been found by Utsumi(1985a,b) that in J-type carbon stars of C4-5 and WZ Cas(C9,2J Li), abundances of s-process elements with respect to Fe are nearly normal, while in normal carbon stars of C5-8, heavy metals are overabundant by factors of 10-100, and rare-earth elements are overabundant by a factor of about 10.In the MK system, most J-type ...
openaire +1 more source
FEBS Open Bio, EarlyView.The presence of biotin‐binding avidin proteins in fish and their biological significance are poorly characterized. We cataloged fish avidins and demonstrate that they are widely present and evolutionarily conserved. We created avd knockout zebrafish and show that zebavidin is dispensable for development and that resistance of avd knockout embryos in ...
Anni K. Saralahti +5 more
wiley +1 more source
A1045_East_Carbon_High_School_0022_edit
, 1960 Film showing the East Carbon High School Basketball team playing against San Juan (Blanding), year unknown.
East Carbon High School
core
When is a prediction anthropic? Fred Hoyle and the 7.65 MeV carbon resonance [PDF]
, 2010 The case of Fred Hoyle’s prediction of a resonance state in carbon-12, unknown in 1953 when it was predicted, is often mentioned as an example of anthropic prediction.
Kragh, Helge
core
A study of U Aquarii and the nucleosynthesis of neutrons and S-process elements in evolved stars of low mass [PDF]
, 2014 The origin of the extreme hydrogen deficiency observed in the R Coronae Borealis (RCrB) stars remains poorly understood. A likely mechanism for producing this deficiency is one whereby the original hydrogen envelope of the star is engulfed and ...
Malaney, Robert A.
core +2 more sources
Tracing Early Enrichment Pathways: Chemical and Chemodynamical Analysis of Two CEMP-no Stars
The Astronomical JournalWe present a detailed high-resolution spectroscopic and chemodynamic analysis of two carbon stars, HE 1148−0037 and HE 1246−1344, using SUBARU High Dispersion Spectrograph spectra ( R ∼ 50,000).
Meenakshi Purandardas
doaj +1 more source
FEBS Open Bio, EarlyView.In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey +4 more
wiley +1 more source
A1045_East_Carbon_High_School_0012_HD_24_fps
, 1971 Film showing the East Carbon High School Football team playing against Monticello on September 24, 1971.
East Carbon High School
core
Selecting a Photometric System for Gaia: C, N, O and Alpha-Process Elements
Open Astronomy, 2003 The sensitivity of stellar spectra to C, N, O and α-process element abundances is discussed with the aim of taking this effect into account when selecting a photometric system for the Gaia orbiting observatory.
Tautvaišienė G. +2 more
doaj +1 more source