Results 61 to 70 of about 45,220 (265)
18th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun: Cool Stars 18 [PDF]
, 2014 The cyclic magnetic activity of the modern-day Sun is generally considered to be powered by a self-regenerating interface-layer dynamo. However, Zeeman Doppler Imaging of the spots and magnetic fields of active young solar-type stars suggests that a ...
Waite, I. A. +2 more
core
Steady-state evolution of debris discs around solar-type stars [PDF]
, 2011 We present an analysis of debris disc data around Solar-type stars (spectral types F0-K5) using the steady-state analytical model of Wyatt et al. Models are fitted to published data from the FEPS project and various GTO programmes obtained with MIPS on ...
Wyatt, M. C. +5 more
core +1 more source
Ambient‐Stable Transparent P‐Type CuI Transistors Via Room‐Temperature Pulsed Laser Deposition
Advanced Functional Materials, EarlyView.An in situ PLD fabricated AlOx${\rm AlO}_x$/CuI/AlOx${\rm AlO}_x$ sandwich structure enables stable CuI TFTs with a field‐effect mobility of 2.3 ±$\pm$ 0.7 cm2${\rm cm}^{2}$ V−1${\rm V}^{-1}$ s−1${\rm s}^{-1}$ and excellent ambient stability. Complementary inverters based on CuI:Rb and ZnO:Al exhibit rail‐to‐rail voltage transfer characteristics and an
Yang Chen +5 more
wiley +1 more source
Rotating models of young solar-type stars [PDF]
, 2016 International audienceContext. Understanding the angular momentum evolution of stars is one of the greatest challenges of modern stellar physics. Aims: We study the predicted rotational evolution of solar-type stars from the pre-main sequence to the ...
Bouvier, J. +9 more
core +1 more source
Advanced Functional Materials, EarlyView.Methane photocatalytic activation under mild conditions remains a formidable challenge in the synthesis of solar fuels. In this review, we emphasize the growing importance of multifunctional materials and hybrid systems within a unified mechanistic framework that integrates selective C─H bond activation, formation and control of intermediates, C─C ...
Di Hu +5 more
wiley +1 more source
Magnetic field evolution in solar-type stars [PDF]
, 2019 We discuss selected aspects regarding the magnetic field evolution of solar-type stars. Most of the stars with activity cycles are in the range where the normalized chromospheric Calcium emission increases linearly with the inverse Rossby number.
Brandenburg, Axel,
core +1 more source
Multiplicity among Solar-type Stars
The Astrophysical Journal, 2017 Abstract We present a multiplicity census for a volume-complete all-sky survey of 422 stars with distances less than 25 pc and primary main-sequence effective temperatures T eff ≥ 5300 K. Very similar to previous results that have been presented for various subsets of this survey, we confirm the positive correlation of ...
K. Fuhrmann +3 more
openaire +1 more source
Duplicity Among Solar-Type Stars [PDF]
International Astronomical Union Colloquium, 1992 AbstractFrom a new study of 113 F8-G1 IV or V primaries in an apparent-magnitude limited sample, measured with a CCD for about 20 radial velocities of accuracy 0.2-0.5 km s−1 each, we collected data for 28 binary orbits and 39 visual systems. We again found a flat distribution (or slightly decreasing toward lower masses) of secondary masses, unlike the
Helmut A. Abt, Daryl W. Willmarth
openaire +1 more source
Advanced Functional Materials, EarlyView.A low‐Pt catalyst supported on zeolitic imidazolate framework (ZIF‐8)‐derived porous carbon and graphite is integrated with a halide perovskite photovoltaic, yielding cathodes that achieve a high photocurrent density (∼20 mA cm−2) under simulated sunlight and exhibit remarkable stability in acidic media over several days, thereby demonstrating a ...
Na Yeong Oh +12 more
wiley +1 more source
MHD turbulence and heating of the open field-line solar corona [PDF]
, 2003 This paper discusses the possibility that heating of the solar corona in open field-line regions emanating from coronal holes is due to a nonlinear cascade, driven by low-frequency or quasi-static magnetohydrodynamic fluctuations.
Dmitruk, Pablo +13 more
core +1 more source