Results 131 to 140 of about 3,488,609 (297)

Mapping Stellar Magnetic Fields

open access: yes, 2019
12 pages, 2 figures; conference proceedings "Stellar Magnetic Fields - A workshop in honour of the career and contributions of John Landstreet", London, Canada ...
openaire   +2 more sources

Rapidly Solidified High‐Strength Invar 36 Prepared by Planar‐Flow Melt Spinning

open access: yesAdvanced Engineering Materials, EarlyView.
The Invar 36 alloy was rapidly solidified using the planar‐flow melt‐spinning technique. Ribbon samples with thicknesses ranging from 20 to 160 mm were produced. As the grain size of the ribbon decreased to sub‐micron levels, the hardness increased by more than 2 times.
Bekir Akgül, Mehmet Kul
wiley   +1 more source

The Centennial Evolution of Solar Chromospheric Rotation

open access: yesThe Astrophysical Journal
Rotation is a prominent feature of the Sun, and it plays a crucial role in the generation and dynamic evolution of solar magnetic fields. The daily composite time series of Ca II K plage areas from 1907 February 1 to 2023 December 31 is used to analyze ...
N. B. Xiang   +5 more
doaj   +1 more source

Effect of surface magnetic fields on limb darkening in main-sequence stars

open access: yesAstronomy & Astrophysics
Context. Stellar limb darkening encodes the thermal and radiative structure of stellar photospheres and is a key ingredient in modeling transit light curves and transmission spectra.
Kostogryz N.   +7 more
doaj   +1 more source

Stellar models used in the paper "An efficient tidal dissipation mechanism via stellar magnetic fields"

open access: yes
<p>Data for stellar models used in the paper "An efficient tidal dissipation mechanism via stellar magnetic fields" (2024). </p> <p> </p> <p>We used MESA version r22.11.1 for these calculations.</p ...
Barker, Adrian J.   +3 more
core   +1 more source

Microstructure‑Dependent Phase Transformations Under High‑Pressure Laser Heating in Additively Manufactured AlCrFe2Ni2

open access: yesAdvanced Engineering Materials, EarlyView.
Additively manufactured AlCrFe2Ni2 with contrasting BCC/B2‐dominant and lamellar FCC + BCC/B2 microstructures exhibits the same pressure‐induced BCC/B2 → HCP transformation. Under laser heating at high pressure, HCP is destabilized, and a cubic BCC/B2 + FCC assemblage is recovered, while the lower‐scan‐speed microstructure transforms at a lower ...
Raimundas Sereika   +5 more
wiley   +1 more source

Impact of Hydrogen Incorporation on Electronic and Magnetic Structure of X2CrNi18‐9 Stainless Steel

open access: yesAdvanced Engineering Materials, EarlyView.
Hydrogen uptake in austenitic stainless steel alters both its electronic and magnetic structure. Seebeck measurements reveal hydrogen‐induced shifts in the electronic density of states, while neutron scattering uncovers nanoscale inhomogeneities that grow upon hydrogen incorporation, with the most pronounced effect observed in the PBF as‐built state ...
Torben Tappe   +9 more
wiley   +1 more source

How Magnetic Field Strength Affects Stellar Coronal Mass Ejection Dynamics

open access: yesThe Astrophysical Journal
Observations show that stellar coronal mass ejection (CME) candidates display relatively lower kinetic energies compared to expectations from solar flare–CME relations extrapolated to the stellar regime. This behavior was predicted by studies of magnetic
Zheng Sun   +2 more
doaj   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Fossil stellar magnetic fields: do they exist, does it matter?

open access: yes, 2003
Fossil magnetic fields (i.e. fields that survive from one stage of stellar evolution to a significantly later epoch without being regenerated) have been invoked to explain phenomena in the Sun, magnetic CP stars, white dwarfs and neutron stars.
D. Moss
core   +1 more source

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