Results 111 to 120 of about 299,299 (345)
Planet formation around stars of various masses: The snow line and the frequency of giant planets
, 2007 We use a semi-analytic circumstellar disk model that considers movement of the snow line through evolution of accretion and the central star to investigate how gas giant frequency changes with stellar mass.
Grant M. Kennedy +7 more
core +1 more source
Large Anomalous and Topological Hall Effect and Nernst Effect in a Dirac Kagome Magnet Fe3Ge
Advanced Functional Materials, EarlyView.Fe3Ge, a Kagome‐lattice magnet, exhibits remarkable anomalous Hall and Nernst effects, with transverse thermoelectric conductivity surpassing or comaprable to some well‐known ferromagnets. First‐principles calculations attribute these to Berry curvature from massive Dirac gaps. Additionally, topological Hall and Nernst signals emerge from field‐induced
Chunqiang Xu +11 more
wiley +1 more source
Discovery of a Metal-poor Red Giant Star with the Highest Ultralithium Enhancement
The Astrophysical JournalWe present the discovery of 2MASS J05241392−0336543 (hereafter J0524−0336), a very metal-poor ([Fe/H] = −2.43 ± 0.16), highly r -process-enhanced ([Eu/Fe] = +1.34 ± 0.10) Milky Way halo field red giant star, with an ultrahigh Li abundance of A (Li, 3D ...
Jeremy Kowkabany +12 more
doaj +1 more source
Galactic Structure with Giant Stars
, 2021 The content of this thesis derives from three projects conducted during my Ph.D, focusing on both the Milky Way and the Magellanic Clouds. I deploy long period variables, especially Miras, as chronometers to study the evolution of Galactic structure over stellar age. I study red giants in the Magellanic Clouds, assign them photometric metallicities and
openaire +1 more source
The fluorine abundance in a Galactic Bulge AGB star measured from CRIRES spectra
, 2008 We present measurements of the fluorine abundance in a Galactic Bulge Asymptotic Giant Branch (AGB) star. The measurements were performed using high resolution K-band spectra obtained with the CRIRES spectrograph, which has been recently installed at ESO'
A. Smette +14 more
core +1 more source
2D Phosphorene‐Decorated Ni‐Rich Layered Cathodes for High‐Power and High‐Energy Li‐Ion Batteries
Advanced Functional Materials, EarlyView.A conformal coating of 2D phosphorene nanosheets is decorated on Li[Ni0.8Co0.1Mn0.1]O2 cathodes to enhance fast charge–discharge performance and structural stability under high mass loading and low carbon content. As a result, it exhibits improved power capability, cycle stability, and suppressed structural degradation, offering a promising strategy ...
Jihoe Lee +15 more
wiley +1 more source
Binary companions of evolved stars in APOGEE DR14: Orbital circularization
, 2018 Short-period binary star systems dissipate orbital energy through tidal interactions that lead to tighter, more circular orbits. When at least one star in a binary has evolved off of the main sequence, orbital circularization occurs for longer-period ...
Goodman, Jeremy, Price-Whelan, Adrian M.
core +1 more source
Advanced Functional Materials, EarlyView.Anisometric carbon nanodots are synthesized directly from a liquid crystal precursor and embedded into polymer network liquid crystals to create soft, multifunctional photonic films. These hybrid devices exhibit polarized photoluminescence, broad UV absorption, and fast, electrically tunable light modulation.
Mangesh D. Patekari +4 more
wiley +1 more source
A universal route for the formation of massive star clusters in giant molecular clouds [PDF]
, 2018 Corey S. Howard +2 more
openalex +1 more source
Spinning-Up the Envelope Before Entering a Common Envelope Phase
, 2010 We calculate the orbital evolution of binary systems where the primary star is an evolved red giant branch (RGB) star, while the secondary star is a low-mass main sequence (MS) star or a brown dwarf.
Alexander +46 more
core +1 more source