Results 51 to 60 of about 478,739 (348)

A search for north-south asymmetry of interplanetary magnetic field and solar plasma [PDF]

Annales Geophysicae, 1994
An analysis of interplanetary magnetic field (IMF) and plasma data taken near 1 AU during solar activity cycle 21 reveals the following. 1. The yearly averaged spiral angle shows a solar cycle dependence. 2. The spiral angle north of the current sheet
I. Sabbah
doaj   +1 more source

North-South asymmetry in the magnetic deflection of polar coronal hole jets [PDF]

, 2015
Measurements of the magnetic field in the interplanetary medium, of the sunspots area, and of the heliospheric current sheet position, reveal a possible North-South asymmetry in the magnetic field of the Sun.
G. Nisticò, G. Zimbardo, S. Patsourakos, V. Bothmer, V. Nakariakov   +4 more
semanticscholar   +1 more source

Hemispheric asymmetry of the dayside aurora due to imbalanced solar insolation

Scientific Reports, 2020
Unlike the nightside aurora, which is controlled mainly by magnetic field reconnection in the magnetotail, the dayside aurora is closely associated with magnetic field merging at the dayside magnetopause. About two decades ago, it was discovered that the
Kan Liou, Elizabeth J. Mitchell
doaj   +1 more source

North South Asymmetry of Different Solar Activity Features During Solar Cycle 23

, 2009
A study on North South (NS) asymmetry of different solar activity features (DSAF) such as solar proton events, solar active prominences, H alpha flare index, soft X ray flares, monthly mean sunspot area and monthly mean sunspot number were carried out ...
Ataç, Ataç, Bai, Ballester, Bell, Bimal Pande, Carbonell, Chang, Choudhuri, Gao, Goel, Haber, Hathaway, Howard, Joshi, Joshi, Joshi, Joshi, Kavita Pandey, Li, Li, Li, Li, Maunder, Navin Chandra Joshi, Neeraj Singh Bankoti, Oliver, Pulkkinen, Roy, Seema Pande, Temmer, Temmer, Verma, Verma, Verma, Verma, Vizoso, Vizoso, Waldmeier, Zaatri, Zhao   +40 more
core   +1 more source

Galactoseismology: Discovery of Vertical Waves in the Galactic Disk

, 2012
We present evidence for a Galactic North-South asymmetry in the number density and bulk velocity of solar neighborhood stars. The number density profile, which is derived from main-sequence stars in the Sloan Digital Sky Survey, shows a (North - South ...
Aihara, Binney, Bochanski, Bond, Dubinski, Flynn, Gauthier, Gilmore, Ivezić, Ivezić, Jurić, Kuijken, Kuijken, Lee, Nakanishi, Oort, Press, Schlafly, Schlegel, Sellwood, Sánchez-Salcedo, Yanny   +21 more
core   +1 more source

A dust component 2 kpc above the plane in NGC 891 [PDF]

, 2007
The halo of NGC 891 has been the subject of studies for more than a decade. One of its most striking features is the large asymmetry in H$\alpha$ emission.
Allen, B. W. Holwerda, Dahlem, Dalcanton, Dettmar, Howk, Kennicutt, Kennicutt, Kregel, P. C. van der Kruit, P. Kamphuis, R. F. Peletier, R. J. Allen, Rand, Sancisi, Sanders, Seth, Swaters, van der Kruit, Xilouris, Xilouris   +20 more
core   +3 more sources

Possible linkage between asymmetry of atmospheric meridional circulation and tropical cyclones in the Central Pacific during El Niño years

PLoS ONE, 2021
The El Niño–Southern Oscillation is one of the most important drivers of climate change on Earth, and is characterised by warmer (El Niño) or colder (La Niña) ocean surface temperatures in the equatorial Pacific.
Tao Li, Fajin Chen, Shuwen Zhang, Xiaoli Feng, Weiqiang Zeng   +4 more
doaj   +2 more sources

Yearly variations in the low-latitude topside ionosphere [PDF]

Annales Geophysicae, 2000
Observations made by the Hinotori satellite have been analysed to determine the yearly variations of the electron density and electron temperature in the low-latitude topside ionosphere.
G. J. Bailey, G. J. Bailey, G. J. Bailey, Y. Z. Su, K.-I. Oyama   +4 more
doaj   +1 more source

A re-visit of the phase-resolved X-ray and \gamma-ray spectra of the Crab pulsar [PDF]

, 2007
We use a modified outer gap model to study the multi-frequency phase-resolved spectra of the Crab pulsar. The emissions from both poles contribute to the light curve and the phase-resolved spectra.
Anisia P. S. Tang, Ding K. Y., J. J. Jia, J. Takata, K. S. Cheng, Takata J.   +5 more
core   +3 more sources

Meridional Asymmetry in Recent Decadal Sea‐Level Trends in the Subtropical Pacific Ocean

Geophysical Research Letters, 2021
Recent sea surface height (SSH) trends in the South Pacific are substantially greater than trends in the North Pacific. Here, we use the Estimating the Climate and Circulation of the Ocean Version 4 Release 4 ocean state estimate and the Ocean Reanalysis
F. Schloesser, P. R. Thompson, C. G. Piecuch   +2 more
doaj   +1 more source