Results 41 to 50 of about 36,388 (256)
DARK JETS IN SOLAR CORONAL HOLES [PDF]
The Astrophysical Journal, 2015 16 pages, 12 figures, submitted to ...
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Coronal Hole Detection and Open Magnetic Flux [PDF]
The Astrophysical Journal, 2021 Abstract Many scientists use coronal hole (CH) detections to infer open magnetic flux. Detection techniques differ in the areas that they assign as open, and may obtain different values for the open magnetic flux. We characterize the uncertainties of these methods, by applying six different detection methods to deduce the area and open ...
Jon A. Linker +16 more
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From Coronal Holes to Pulsars and Back Again: Learning the Importance of Data
Frontiers in Astronomy and Space Sciences, 2022 Although wanting to become an astronomer from an early age, I ended up in solar physics purely by chance, after first working in high-energy astrophysics.
Y.-M. Wang
doaj +1 more source
Heliospheric consequences of solar activity in geophysical and interplanetary phenomena [PDF]
Geofísica Internacional, 2004 We have done an analysis of the total solar magnetic flux, polar coronal hole area and sunspots. We investigate their long term evolution over several solar cycles and their possible relationship with interplanetary shocks, sudden storm commencements at ...
J. F. Valdés Galicia +2 more
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Empirical Forecast of Corotating Interacting Regions and Geomagnetic Storms Based on Coronal Hole Information [PDF]
Journal of Astronomy and Space Sciences, 2009 In this study, we suggest an empirical forecast of CIR (Corotating Interaction Regions) and geomagnetic storm based on the information of coronal holes (CH). For this we used CH data obtained from He I 10830 Å maps at National Solar Observatory-Kitt Peak
Ji-Hye Lee +3 more
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Solar Mass Ejections and Coronal Holes [PDF]
International Astronomical Union Colloquium, 1996 AbstractIn this paper we present observations of two types of solar mass ejections, which seem to be associated with the location of coronal holes. In the first type, a filament eruption was observed near a coronal hole, which gave rise to a strong interplanetary scintillations, as detected by IPS observations.
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Structure and Dynamics of the Sun's Open Magnetic Field
, 2007 The solar magnetic field is the primary agent that drives solar activity and couples the Sun to the Heliosphere. Although the details of this coupling depend on the quantitative properties of the field, many important aspects of the corona - solar wind ...
Antiochos S. K. +18 more
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Radio Observations of Coronal Holes [PDF]
Symposium - International Astronomical Union, 1980 Coronal holes have been observed on several occasions with the 80 and 160 MHz radioheliograph at Culgoora. At 160 MHz the holes invariably appear as areas of low brightness, either on the disk or at the limb. At 80 MHz holes on the limb always appear less bright than their surroundings but on the disk they frequently appear brighter.The simplest ...
K. V. Sheridan, G. A. Dulk
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EUV Emission and Scattered Light Diagnostics of Equatorial Coronal Holes as Seen by Hinode/EIS [PDF]
, 2011 Spectroscopic diagnostics of solar coronal plasmas critically depends on the uncertainty in the measured line intensities. One of the main sources of uncertainty is instrumental scattered light, which is potentially most important in low-brightness areas.
Georg Zoidl (90612) +4 more
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Evolution of microflares associated with bright points in coronal holes and in quiet regions
, 2011 We aim to find similarities and differences between microflares at coronal bright points found in quiet regions and coronal holes, and to study their relationship with large scale flares.
Archontis +55 more
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