Results 21 to 30 of about 1,537 (202)
Space Weather, Volume 20, Issue 3, March 2022., 2022 Abstract In the past decade, significant efforts have been made in developing physics‐based solar wind and coronal mass ejection (CME) models, which have been or are being transferred to national centers (e.g., SWPC, Community Coordinated Modeling Center) to enable space weather predictive capability.
Meng Jin +2 more
wiley +1 more source
International Astronomical Union Colloquium, 1995 AbstractObservations of solar p-mode oscillations over the last two decades have provided a fundamentally new and unique means of probing the Sun’s interior structure. The history of understanding solar oscillations as trapped normal-mode pulsations will be briefly discussed. The large number of excited modes seen in the Sun have been used to constrain
openaire +2 more sources
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
R2O2R Improvements Identified by United States Space Weather Forecasters
Space Weather, Volume 19, Issue 6, June 2021., 2021 Abstract A communication deficit exists between the space weather research and forecast communities in the research‐to‐operations‐to‐research (R2O2R) pipeline. No formal, citable space exists for forecasters to communicate needs and lessons learned to the research community (O2R).
E. C. Butler, J. M. Keller
wiley +1 more source
, 1988 Many of the oscillations observed at the solar surface have been identified with resonant normal modes of the entire solar body. Accurate measurements of frequencies' of these modes enable us to study the internal structure and dynamics of the Sun ...
Antia, H. M.
core +2 more sources
Deciphering Solar Magnetic Activity: On Grand Minima in Solar Activity
Frontiers in Astronomy and Space Sciences, 2015 The Sun provides the energy necessary to sustain our existence. While the Sun provides for us, it is also capable of taking away. The weather and climatic scales of solar evolution and the Sun-Earth connection are not well understood.
Scott William Mcintosh, Robert J Leamon
doaj +1 more source
Waves from the Sun: to the 100th anniversary of V.A. Troitskaya’s birth
Solar-Terrestrial Physics, 2017 It has been one hundred years since the birth of the outstanding scientist Professor V.A. Troitskaya. Her remarkable achievements in solar-terrestrial physics are widely known. For many years, Valeria A.
Guglielmi A.V., Potapov A.S.
doaj +1 more source
Helioseismology and Beryllium neutrinos [PDF]
Physics Letters B, 1999 We derive a lower limit on the Beryllium neutrino flux on earth, $Φ(Be)_{min} = 1\cdot 10^9 cm^{-2} s^{-1}$, in the absence of oscillations, by using helioseismic data, the B-neutrino flux measured by Superkamiokande and the hydrogen abundance at the solar center predicted by Standard Solar Model (SSM) calculations.
Ricci B +2 more
openaire +4 more sources
Frontiers in Astronomy and Space Sciences, 2019 Since the first observations of solar oscillations in 1960, helioseismology has probably been one of the most successful fields of astrophysics.
Gaël Buldgen +4 more
doaj +1 more source