Results 11 to 20 of about 10,692 (216)

Morphology, dynamics and plasma parameters of plumes and inter-plume regions in solar coronal holes

Astronomy and Astrophysics Review, 2011
Coronal plumes, which extend from solar coronal holes (CH) into the high corona and - possibly - into the solar wind (SW), can now continuously be studied with modern telescopes and spectrometers on spacecraft, in addition to investigations from the ...
Abbo, L., Auchere, F., Barbey, N., Feng, L., Gabriel, A. H., Giordano, S., Imada, S., Llebaria, A., Matthaeus, W. H., Poletto, G., Raouafi, N. -E., Suess, S. T., Teriaca, L., Wang, Y. -M., Wilhelm, K.   +14 more
core   +5 more sources

Interchange reconnection as the source of the fast solar wind within coronal holes. [PDF]

Nature, 2023
Bale SD, Drake JF, McManus MD, Desai MI, Badman ST, Larson DE, Swisdak M, Swisdak M, Horbury TS, Raouafi NE, Phan T, Velli M, McComas DJ, Cohen CMS, Mitchell D, Panasenco O, Kasper JC.   +16 more
europepmc   +2 more sources

The Sun's Global Photospheric and Coronal Magnetic Fields: Observations and Models

Living Reviews in Solar Physics, 2012
In this review, our present day understanding of the Sun’s global photospheric and coronal magnetic fields is discussed from both observational and theoretical viewpoints. Firstly, the large-scale properties of photospheric magnetic fields are described,
Duncan Mackay, Anthony Yeates
doaj   +2 more sources

Statistical Study of Ejections in Coronal Hole Regions As Possible Sources of Solar Wind Switchbacks and Small-scale Magnetic Flux Ropes

The Astrophysical Journal Letters, 2023
The omnipresence of transient fluctuations in the solar wind, such as switchbacks (SBs) and small-scale magnetic flux ropes (SMFRs), have been well observed by the in situ observation of Parker Solar Probe (PSP), yet their sources are not clear. Possible
Nengyi Huang, Sophia D’Anna, Haimin Wang   +2 more
doaj   +1 more source

Graphical evidence for the solar coronal structure during the Maunder minimum: comparative study of the total eclipse drawings in 1706 and 1715

Journal of Space Weather and Space Climate, 2021
We discuss the significant implications of three eye-witness drawings of the total solar eclipse on 1706 May 12 in comparison with two on 1715 May 3, for our understanding of space climate change.
Hayakawa Hisashi, Lockwood Mike, Owens Matthew J., Sôma Mitsuru, Besser Bruno P., van Driel-Gesztelyi Lidia   +5 more
doaj   +1 more source

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.
openaire   +1 more source

DARK JETS IN SOLAR CORONAL HOLES [PDF]

The Astrophysical Journal, 2015
16 pages, 12 figures, submitted to ...
openaire   +2 more sources

Estimating Ion Temperatures at the Polar Coronal Hole Boundary

The Astrophysical Journal, 2023
The temperatures of the heavy ions ( T _i ) in the solar corona provide critical information about the heating mechanism of the million-degree corona.
Yingjie Zhu, Judit Szente, Enrico Landi
doaj   +1 more source

Prospective Implications of Extreme-ultraviolet Coronal Plumes for Magnetic-network Genesis of Coronal Heating, Coronal-hole Solar Wind, and Solar-wind Magnetic Field Switchbacks

The Astrophysical Journal Letters, 2023
We propose that coronal heating in EUV coronal plumes is weaker, not stronger, than in adjacent nonplume coronal magnetic funnels. This expectation stems from (i) the observation that an EUV plume is born as the magnetic flux at the foot of the plume’s ...
Ronald L. Moore, Sanjiv K. Tiwari, Navdeep K. Panesar, Alphonse C. Sterling   +3 more
doaj   +1 more source

Optoelectronic Interfaces for Nongenetic Modulation of Excitable Tissues. [PDF]

Small Methods
This review summarizes recent advances in nongenetic optoelectronic technologies for the modulation of excitable biotissues, covering material selection, device design, and working principles, as well as characterization methods. Representative applications in in vitro and in vivo models of the cardiac, central, and peripheral nervous systems are ...
Wang Q, Li J.
europepmc   +2 more sources