Results 11 to 20 of about 2,926 (125)
Space Weather, 2020 Modeling the space weather conditions for a near‐Earth environment depends on a proper representation of magnetic fields on the Sun. There are discussions in the community with respect to the value of observations taken at several Lagrangian points (L1 ...
A. A. Pevtsov +3 more
doaj +2 more sources
Forward Modeling of Coronal Mass Ejection Flux Ropes in the Inner Heliosphere with 3DCORE. [PDF]
Space Weather, 2018 Abstract Forecasting the geomagnetic effects of solar storms, known as coronal mass ejections (CMEs), is currently severely limited by our inability to predict the magnetic field configuration in the CME magnetic core and by observational effects of a single spacecraft trajectory through its 3‐D structure. CME magnetic flux ropes can lead to continuous
Möstl C +9 more
europepmc +2 more sources
Thank You to Our 2022 Peer Reviewers
Geophysical Research Letters, Volume 50, Issue 9, 16 May 2023., 2023 Abstract On behalf of the journal, AGU, and the scientific community, the editors of Geophysical Research Letters would like to sincerely thank those who reviewed manuscripts for us in 2022. The hours reading and commenting on manuscripts not only improve the manuscripts, but also increase the scientific rigor of future research in the field.
Harihar Rajaram +24 more
wiley +1 more source
The Dependence of the Peak Velocity of High-Speed Solar Wind Streams as Measured in the Ecliptic by ACE and the STEREO satellites on the Area and Co-latitude of Their Solar Source Coronal Holes. [PDF]
J Geophys Res Space Phys, 2018 Abstract We study the properties of 115 coronal holes in the time range from August 2010 to March 2017, the peak velocities of the corresponding high‐speed streams as measured in the ecliptic at 1 AU, and the corresponding changes of the Kp index as marker of their geoeffectiveness. We find that the peak velocities of high‐speed streams depend strongly
Hofmeister SJ +5 more
europepmc +2 more sources
Sunspot observations at Kawaguchi Science Museum: 1972 – 2013
Geoscience Data Journal, Volume 10, Issue 1, Page 87-98, January 2023., 2023 This article visualises a database for Hitoshi Takuma's sunspot observations and background metadata. Abstract Individual sunspot observations have formed a ground basis of international sunspot number, a unique reference for long‐term solar variability in the centennial timescale. The original datasets were subjected to exploitations and analyses upon
Hisashi Hayakawa +5 more
wiley +1 more source
Current Studies in Herpetology, 2023 Differences in growth rates are shown, as well as in the cost of rearing male and female Bufotes pewzowi under laboratory conditions. We observed a tendency for females to be superior in length and weight, but statistically significant differences (U = 13, p < 0.05) were noted only in weight after 50 weeks of rearing.
K. A. Matushkina, E. A. Astakhova
openaire +1 more source
Astronomische Nachrichten, Volume 343, Issue 5, June 2022., 2022 Abstract The strong chromospheric absorption lines Ca ii H & K are tightly connected to stellar surface magnetic fields. Only for the Sun, spectral activity indices can be related to evolving magnetic features on the solar disk. The Solar Disk‐Integrated (SDI) telescope feeds the Potsdam Echelle Polarimetric and Spectroscopic Instrument (PEPSI) of the ...
Ekaterina Dineva +6 more
wiley +1 more source
A Multicomponent Magnetic Proxy for Solar Activity
Space Weather, Volume 19, Issue 12, December 2021., 2021 Abstract We present a new, multicomponent magnetic proxy for solar activity derived from full disk magnetograms that can be used in the specification and forecasting of the Sun’s radiative output. To compute this proxy we project Carrington maps, such as the synchronic Carrington maps computed with the Advective Flux Transport (AFT) surface flux ...
Harry P. Warren +2 more
wiley +1 more source
A Multi‐Purpose Heliophysics L4 Mission
Space Weather, Volume 19, Issue 9, September 2021., 2021 Abstract The Earth‐Sun Lagrangian point 4 is a meta‐stable location at 1 AU from the Sun, 60° ahead of Earth's orbit. It has an uninterrupted view of the solar photosphere centered on W60, the Earth's nominal magnetic field connection to the Sun. Such a mission on its own would serve as a solar remote sensing observatory that would oversee the entire ...
A. Posner +15 more
wiley +1 more source
Solar Filament Eruptions in H α Doppler Velocity
The Astrophysical Journal, 2023 We use observations taken with a novel solar telescope spectroheliograph to investigate the association between the early filament rise and coronal mass ejections (CMEs).
I. A. Berezin +2 more
doaj +1 more source