Results 1 to 10 of about 29,020 (214)

The Sun's General Magnetic Field [PDF]

open access: yesNature, 1956
WITH their admirable experimental technique, Babcock and Babcock have been able to measure certain very small line displacements in the Sun's spectrum, from which they deduce a general magnetic field of the order of −1 gauss. In order to draw this conclusion they use (although implicitly) two theories: (1) the theory of the Zeeman effect, connecting ...
H. ALFVÉN, B. LEHNERT
  +6 more sources

The Magnetic Field Inside the Sun [PDF]

open access: yesSymposium - International Astronomical Union, 1988
Duvall, Harvey and Pomerantz (1986) reported the existence of a ‘structural asymmetry’ inside the Sun. We show that this asymmetry is not a consequence of the Sun's rotation. We attribute the asymmetry, rather, to a toroidal magnetic field inside the Sun.
W. Dziembowski, Philip R. Goode
openaire   +1 more source

The toroidal magnetic field inside the Sun [PDF]

open access: yesInternational Astronomical Union Colloquium, 1991
Analysis of the fine structure of the solar oscillations has enabled us to determine the internal rotation of the Sun and to estimate the magnitude of the large-scale magnetic field inside the Sun. According to the data of Duvall et al. (1984), the core of the Sun rotates about twice as fast as the solar surface. Recently Dziembowski et al. (1989) have
V.N. Krivodubskij   +3 more
openaire   +1 more source

The Sun's global magnetic field [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2012
Our present-day understanding of solar and stellar magnetic fields is discussed from both an observational and theoretical viewpoint. To begin with, observations of the Sun's large-scale magnetic field are described, along with recent advances in measuring the spatial distribution of magnetic fields on other stars.
openaire   +2 more sources

THE EMERGENCE OF WEAKLY TWISTED MAGNETIC FIELDS IN THE SUN [PDF]

open access: yesThe Astrophysical Journal, 2013
We have studied the emergence of a weakly twisted magnetic flux tube from the upper convection zone into the solar atmosphere. It is found that the rising magnetized plasma does not undergo the classical, single Ω-shaped loop emergence, but it becomes unstable in two places, forming two magnetic lobes that are anchored in small-scale bipolar structures
Archontis, Vasilis   +2 more
openaire   +4 more sources

Quiet Sun Magnetic Fields [PDF]

open access: yes, 2022
Gegenstand dieser Doktorarbeit ist das Studium der Magnetischen Felder auf der "ruhigen Sonne". Diese Felder rhren von sehr kleinskaligen Bereichen auf der sonst "magnetfeldfreien" Sonnenoberfläche her und sind deshalb nur durch schwache Polarisationssignale gekennzeichnet.
Domínguez Cerdeña, Itahiza Francisco   +3 more
openaire   +2 more sources

The internal magnetic field of the Sun [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1987
On essaie de placer des limites a la taille des composantes a echelle moyenne ou large du champ magnetique dans l'interieur radiatif du ...
openaire   +1 more source

Nitride MXenes Beyond Carbides: Bridging the Gap Between Computational Prediction and Experimental Realization

open access: yesAdvanced Functional Materials, EarlyView.
Nitride MXenes remain constrained by a persistent gap between computational prediction and experimental realization. This Review identifies the thermodynamic, kinetic, and chemical barriers limiting their synthesis, critically evaluates emerging fabrication routes, and proposes a multidimensional computational‐experimental framework to accelerate the ...
Naresh Varnakavi, Masoud Soroush
wiley   +1 more source

Paving the Way for Next‐Generation Solid‐State Waste Heat Recovery: A Thermomagnetic Materials and Systems Roadmap

open access: yesAdvanced Functional Materials, EarlyView.
Unlocking thermomagnetic low‐grade waste heat recovery. This perspective provides a comprehensive roadmap for the development of thermomagnetic materials and systems. By addressing key engineering challenges across multiple scales, it bridges the gap between micro‐power IoT devices and large‐scale industrial applications. ABSTRACT Nearly half of global
A. Waske   +13 more
wiley   +1 more source

Bio‐Inspired Multifunctional Superhydrophilic Coatings With Remarkably Fast Self‐Healing Abilities

open access: yesAdvanced Functional Materials, EarlyView.
We developed bio‐inspired multifunctional hydrogel‐based coatings that exhibit extremely fast/repeatable self‐healing abilities, long‐lasting anti‐fogging performance, superhydrophilicity in air, and underwater superoleophobicity. By doping multivalent metal‐ions into the hydrogel networks, which promoted hydrogen bonding formation and enhanced the ...
Hyeonjin Kim   +5 more
wiley   +1 more source

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