Results 31 to 40 of about 3,404 (216)
SPIN-DOWN DYNAMICS OF MAGNETIZED SOLAR-TYPE STARS [PDF]
The Astrophysical Journal, 2013 It has long been known that solar-type stars undergo significant spin-down, via magnetic braking, during their Main-Sequence lifetimes. However, magnetic braking only operates on the surface layers; it is not yet completely understood how angular momentum is transported within the star, and how rapidly the spin-down information is communicated to the ...
Oglethorpe, Rosie, Garaud, Pascale
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Advanced Functional Materials, EarlyView.Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein +4 more
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Stochastic Excitation in Solar-Type Stars [PDF]
International Astronomical Union Colloquium, 2002 AbstractThe most convincing evidence to date of solar-type oscillations in other stars comes from recent observations of β Hydri (Bedding et al., 2001) and α Cen A (Bouchy & Carrier, 2001). It is the current belief that the convection dynamics in the outer layers of sun-like stars is the source for driving the intrinsically stable modes to the ...
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Lithium Abundance of the Solar-Type Superflare Stars [PDF]
Proceedings of the 14th International Symposium on Nuclei in the Cosmos (NIC2016), 2017 {"references": ["Maehara, H., et al. 2012, Nature, 485, 478", "Shibayama, T., et al. 2013, ApJS, 209, 5", "Notsu, Y., et al. 2015, PASJ, 67, 32", "Notsu, Y., et al. 2015, PASJ, 67, 33", "Honda, S., et al. 2015, PASJ 67, 85", "Herbig, G. H. 1965, ApJ, 141, 588", "Skumanich, A. 1972, ApJ, 171, 565", "Mishenina, T. V., et al.
Honda, Satoshi +6 more
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Band Alignment in In‐Oxo Metal Porphyrin SURMOF Heterojunctions
Advanced Functional Materials, EarlyView.Porphyrin core metalation in indium‑oxo SURMOFs enables systematic tuning of band edge positions without altering the crystal structure. First‑principles calculations reveal type‑I and type‑II heterostructures as well as multi‑junction energy cascades, establishing a modular strategy for exciton funneling and charge separation in optoelectronic ...
Puja Singhvi, Nina Vankova, Thomas Heine
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Dynamo saturation in rapidly rotating solar-type stars [PDF]
Research in Astronomy and Astrophysics, 2015 The magnetic activity of solar-type stars generally increases with stellar rotation rate. The increase, however, saturates for fast rotation. The Babcock-Leighton mechanism of stellar dynamos saturates as well when the mean tilt-angle of active regions approaches ninety degrees.
Kitchatinov, L. L., Olemskoy, S. V.
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Advanced Functional Materials, EarlyView.A food‐grade cooling composite made from starch and recycled eggshell powder offers a scalable, ultra‐low‐cost solution for passive daytime radiative cooling. Easily prepared using basic kitchen tools, this material empowers communities, even in areas with limited infrastructure, to stay cooler during worsening summer heat waves.
Qimeng Song +3 more
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TRANSPORT BY MERIDIONAL CIRCULATIONS IN SOLAR-TYPE STARS [PDF]
The Astrophysical Journal, 2012 14 ...
Wood, Toby S., Brummell, Nicholas H.
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Advanced Functional Materials, EarlyView.This review systematically highlights the latest achievements in mixed‐valence states relevant to hydrogen and oxygen evolution reactions, providing essential insights into future directions and methods for large‐scale practical implementation. This critical review is expected to provide an overview of recent advancements in diverse valence‐state metal
Jitendra N. Tiwari +4 more
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Photometric Variations of Solar Type Stars [PDF]
International Astronomical Union Colloquium, 1994 High precision measurements of photometric variability among solar type stars have now been made since 1980. These observations clearly show that year-to-year brightness variations connected with magnetic activity are a widespread phenomenon among such stars.
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