Results 31 to 40 of about 478,739 (348)

A NEW METHOD FOR NORTH-SOUTH ASYMMETRY OF SUN SPOT AREA ANALYSIS [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2007
We have studied the temporal variation in the North-South asymmetry of the sunspot area during the period from 1874 to 2007. Though the 9-year periodicity is commonly reported, shorter periodicities is still under study.
Heon-Young Chang
doaj   +1 more source

North—south asymmetry in the solar coronal rotation [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society: Letters, 2011
Abstract The solar images at 17 GHz by the Nobeyama Radio Heliograph and in X-rays by the soft X-ray telescope (SXT) on board the Yohkoh satellite have been of particular interest for the estimation of solar coronal rotation using the flux modulation approach. These studies established that the solar corona rotates differentially.
Vats, Hari Om, Chandra, Satish
openaire   +2 more sources

Latitudinal Distribution of Sunspot and North-South Asymmetry Revisited [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2018
The solar magnetic field plays a central role in the field of solar research, both theoretically and practically. Sunspots are an important observational constraint since they are considered a discernable tracer of emerged magnetic flux tubes, providing ...
Heon-Young Chang
doaj   +1 more source

COMPLEXES OF ACTIVITY ON THE SUN IN SOLAR CYCLE 21

open access: yesSolar-Terrestrial Physics, 2021
The paper provides statistical data on solar activity complexes (ACs) observed in solar cycle 21. From the synoptic charts for the 1976–1986 sunspot activity, we have detected the regions where the sunspot generation was observed at least through three ...
S.А. Yazev, M.М. Ulianova, E.S. Isaeva
doaj   +1 more source

North‐south asymmetry in Martian crater slopes [PDF]

open access: yesJournal of Geophysical Research: Planets, 2009
The presence of an extensive ice‐rich layer in the near subsurface of the Martian regolith could result in viscous creep responsible for softening of craters at middle and high latitudes. The temperature of ground ice will vary spatially within a crater owing to the effect of slope on the effective angle of insolation.
R. A. Parsons, F. Nimmo
openaire   +1 more source

Growth and asymmetry of soil microfungal colonies from "Evolution Canyon," Lower Nahal Oren, Mount Carmel, Israel. [PDF]

open access: yesPLoS ONE, 2012
Fluctuating asymmetry is a contentious indicator of stress in populations of animals and plants. Nevertheless, it is a measure of developmental noise, typically obtained by measuring asymmetry across an individual organism's left-right axis of symmetry ...
Shmuel Raz   +5 more
doaj   +1 more source

Solar activity cycle 25: the first three years

open access: yesSolar-Terrestrial Physics, 2023
We analyze features of current solar activity cycle 25 for the first three years of its development (2020–2022). Compared to cycle 24, the current cycle is shown to exceed the previous one in the number of sunspot groups (1.5 times), the number of flares
Yazev S. A.   +2 more
doaj   +1 more source

Simulations of solar wind variations during an 11-year cycle and the influence of north–south asymmetry [PDF]

open access: yesJournal of Plasma Physics, 2018
We want to study the connections between the magnetic field generated inside the Sun and the solar wind impacting Earth, especially the influence of north–south asymmetry on the magnetic and velocity fields. We study a solar-like 11-year cycle in a quasi-
B. Perri   +3 more
semanticscholar   +1 more source

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