Results 31 to 40 of about 979,369 (340)
Solar mean magnetic field of the chromosphere
Journal of Astrophysics and Astronomy, 2023 The Solar Mean Magnetic Field (SMMF) is the mean value of the line of sight (LOS) component of the solar vector magnetic field averaged over the visible hemisphere of the Sun. So far, the studies on SMMF have mostly been confined to the magnetic field measurements at the photosphere. In this study, we calculate and analyse the SMMF using magnetic field
M. Vishnu, K. Nagaraju, Harsh Mathur
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VECTOR MAGNETIC FIELDS OF SOLAR GRANULATION [PDF]
The Astrophysical Journal, 2008 24 pages in total, 9 ...
Chunlan Jin, Jingxiu Wang, Meng Zhao
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, 2011 . Minima in geomagnetic activity (MGA) at Earth at the ends of SC23 and SC22 have been identified. The two MGAs (called MGA23 and MGA22, respectively) were present in 2009 and 1997, delayed from the sunspot number minima in 2008 and 1996 by ~1/2–1 years.
B. Tsurutani, E. Echer, W. Gonzalez
semanticscholar +1 more source
TANGLED MAGNETIC FIELDS IN SOLAR PROMINENCES [PDF]
The Astrophysical Journal, 2010 Solar prominences are an important tool for studying the structure and evolution of the coronal magnetic field. Here we consider so-called "hedgerow" prominences, which consist of thin vertical threads. We explore the possibility that such prominences are supported by tangled magnetic fields. A variety of different approaches are used.
A. A. van Ballegooijen +1 more
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Solar Magnetism in the Polar Regions
Living Reviews in Solar Physics, 2015 This review describes observations of the polar magnetic fields, models for the cyclical formation and decay of these fields, and evidence of their great influence in the solar atmosphere.
Gordon J. D. Petrie
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Magnetic Reconnection as the Driver of the Solar Wind
The Astrophysical Journal, 2023 We present EUV solar observations showing evidence for omnipresent jetting activity driven by small-scale magnetic reconnection at the base of the solar corona.
Nour E. Raouafi +18 more
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Solar Vortices and Magnetic Fields [PDF]
Nature, 1908 SEVERAL weeks ago I discussed with Prof. Hale the matter of solar vortices and magnetic fields, with reference to his recent discoveries, briefly described in NATURE for August 20 (p. 368). It did not seem to me probable that the effects could be accounted for by unequal diffusivity of the positive and negative ions, or by centrifugal separation, nor ...
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Observational Study of Recurrent Jets Confined by Active Region Loops
The Astrophysical Journal, 2023 With high spatial and temporal resolution data from the Solar Dynamics Observatory and the New Vacuum Solar Telescope (NVST), we present observations of recurrent jets confined by coronal loops that occurred in the active region NOAA 11726 from 02:00 to ...
Liheng Yang +6 more
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Fractality of Magnetic Helicity Distribution in the Solar Corona
The Astrophysical JournalWe find a universal power-law scaling of magnetic helicity distribution in the solar corona. Magnetic helicity is a dynamical invariant for ideal magnetohydrodynamics (MHD) and characterizes complex magnetic field structure by measuring the degree of ...
Anda Xiong +3 more
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Advanced Functional Materials, EarlyView.Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong +16 more
wiley +1 more source