Results 61 to 70 of about 2,991,320 (323)

On the Long-Term Modulation of Solar Differential Rotation [PDF]

, 2014
Long-term modulation of solar differential rotation was studied with data from Mt. Wilson and our original observations during Solar Cycles 16 through 23. The results are that i) the global B-value (i.e.
M. Suzuki
semanticscholar   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

Advanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian, Jingkai Lin, Zhihao Tian, Selusiwe Ncube, Huayang Zhang, Emiliano Cortés, Hongqi Sun, Shaobin Wang   +7 more
wiley   +1 more source

Solar Rotation and Activity for Cycle 24 from SDO/AIA Observations

The Astrophysical Journal
Differential rotation plays a crucial role in the dynamics of the Sun. We study the solar rotation and its correlation with solar activity by applying a modified machine learning algorithm to identify and track coronal bright points (CBPs) from the Solar
Zahra Shokri, Nasibe Alipour, Hossein Safari   +2 more
doaj   +1 more source

Magnetic Field as a Tracer for Studying the Differential Rotation of the Solar Corona [PDF]

Solar Physics, 2018
The characteristics of differential rotation of the solar corona for the period 1976 – 2004 were studied as a function of the distance from the center of the Sun. For this study, we developed a method using the coronal magnetic field as a tracer.
O. G. Badalyan, V. Obridko
semanticscholar   +1 more source

Magnetically controlled stellar differential rotation near the transition from solar to anti-solar profiles

, 2015
VK: Karhunen, J.; ReSoLVEContext. Late-type stars rotate differentially owing to anisotropic turbulence in their outer convection zones. The rotation is called solar-like (SL) when the equator rotates fastest and anti-solar (AS) otherwise.
Pelt, J., M. J. Käpylä, Käpylä, Maarit J., Brandenburg, Axel,, Olspert, N., Karak, Bidya Binay,, B. B. Karak, A. Brandenburg, Kapyla, P. J., J. Pelt, Karak, Bidya B., Brandenburg, Axel, P. J. Käpylä, Käpylä, Petri J., Kapyla, M. J., Karak, B. B., N. Olspert   +16 more
core   +1 more source

Magnetic fields and differential rotation on the pre-main sequence – II. the early-G star HD 141943 – coronal magnetic field, Hα emission and differential rotation [PDF]

, 2011
Spectropolarimetric observations of the pre-main sequence early-G star HD 141943 were made at three observing epochs (2007, 2009 and 2010). The observations were made using the 3.9-m Anglo-Australian Telescope with the UCLES echelle spectrograph and the ...
Semel, Meir, S. C. Marsden, Waite, I.A., Rámirez Vélez, J. C., J.-F. Donati, Carter, B.D., Donati, J. -F., Dunstone, N., C. J. Brown, I. A. Waite, Dunstone, N. J., E. Alecian, Donati, J-F., Marsden, S. C., Brown, C.J., N. Dunstone, Waite, I. A., Jardine, M. M., Donati, J.-F., M. M. Jardine, Ramírez Vélez, J.C., B. D. Carter, Brown, C. J., Alecian, E., Jardine, M.M., M. Semel, Donati, Jean-François, Alecian, Evelyne, Semel, M., Hart, R., J. C. Ramírez Vélez, R. Hart, Marsden, S.C., Carter, B. D., Jardine, M. M.; id_orcid, Brown, C. J.; id_orcid   +35 more
core   +1 more source

Ligand Assisted Epitaxial Growth of CsPbBr3 Microcrystal Resonators With Record ‐Low Lasing Thresholds

Advanced Functional Materials, EarlyView.
Solution‐based ligand‐assisted epitaxial growth (LAEG) yields high‐quality CsPbBr3 microcrystals on different substrates with superior morphology, passivated surfaces, and high photoluminescence quantum yield. These robust micro‐resonators achieve record‐low room‐temperature lasing thresholds of 7.2 kW·cm−2 and maintain operational stability up to 90 ...
Shuyu Zhou, Viktor Rehm, Zijian Peng, Tomáš Hrbek, Anastasia Barabash, Christoph J. Brabec, Berke Özyalin, Yufei Han, Johannes Böhmer, Johannes Will, Erdmann Spiecker, Klaus Götz, Tobias Unruh, Jędrzej Korczak, Tomasz Story, Felix Hilpert, Olaf Brummel, Jörg Libuda, Iva Matolínová, Wolfgang Heiss   +19 more
wiley   +1 more source

Equator to Pole Solar Chromospheric Differential Rotation Using Ca-K Features Derived from Kodaikanal Data

The Astrophysical Journal
Differential rotation is one of the basic characteristics of the Sun, and it plays an important role in generating the magnetic fields and its activities.
Hema Kharayat, Jagdev Singh, Muthu Priyal, B. Ravindra   +3 more
doaj   +1 more source

DIFFERENTIAL ROTATION OF THE ULTRAVIOLET CORONA AT SOLAR MAXIMUM

The Astrophysical Journal, 2011
Synoptic observations of the O VI 1032 A spectral line from the UltraViolet Coronagraph Spectrometer (UVCS) telescope on board the Solar and Heliospheric Observatory (SOHO) have been analyzed in order to establish the rotational characteristics of the solar corona in the time interval from 1999 March 18 to 2002 December 31, corresponding to the maximum
Salvatore Mancuso, Silvio Giordano
openaire   +2 more sources

An evolutionary computation based algorithm for calculating solar differential rotation by automatic tracking of coronal bright points

, 2016
Developing specialized software tools is essential to support studies of solar activity evolution. With new space missions such as Solar Dynamics Observatory (SDO), solar images are being produced in unprecedented volumes. To capitalize on that huge data
E. Shahamatnia, I. Dorotovic, J. Fonseca, Rita Almeida Ribeiro   +3 more
semanticscholar   +1 more source