Results 11 to 20 of about 742,768 (286)

Polar cap index comparisons with AMIE cross polar cap potential, electric field, and polar cap area [PDF]

Geophysical Research Letters, 2004
The polar cap index (PCI) has been shown to be quite useful as an index of the electrodynamic processes within the high‐latitude ionosphere. Here we use between 150 and 180 magnetometers to model the high‐latitude electrodynamics with the assimilative mapping of ionospheric electrodynamics (AMIE) technique for all of 1997–2001.
Ridley, Andrew, Kihn, E.A.
core   +9 more sources

Uranus's northern polar cap in 2014. [PDF]

Geophys Res Lett, 2018
AbstractIn October and November 2014, spectra covering the 1.436 to 1.863‐μm wavelength range from the SINFONI Integral Field Unit Spectrometer on the Very Large Telescope showed the presence of a vast bright north polar cap on Uranus, extending northward from about 40°N and at all longitudes observed.
Toledo D, Irwin PGJ, Teanby NA, Simon AA, Wong MH, Orton GS.   +5 more
europepmc   +6 more sources

Review of ionospheric effects of solar wind magnetosphere coupling in the context of the expanding contracting polar cap boundary model [PDF]

, 2006
This paper reviews the coupling between the solar wind, magnetosphere and ionosphere. The coupling between the solar wind and Earth’s magnetosphere is controlled by the orientation of the Interplanetary Magnetic Field (IMF).
Milan, S. E., Provan, G., Lester, M., Wild, J. A.   +3 more
core   +4 more sources

Origin of radio polarization in pulsar polar caps [PDF]

Astronomy & Astrophysics
Context. It is crucial to know the polarization properties of coherent radio waves that escape from pulsar polar caps to calculate the radiative transfer through the magnetosphere and to predict observable radio properties. Aims.
Benáček Jan, Jessner Axel, Pohl Martin, Rievajová Tatiana, Oswald Lucy S.   +4 more
doaj   +3 more sources

Formation and motion of a transpolar arc in response to dayside and nightside reconnection [PDF]

, 2005
peer reviewed[ 1] We trace the formation and subsequent motion of a transpolar arc in response to dayside and nightside reconnection. Both high- and low-latitude dayside reconnection are observed, as well as periods of substorm and nonsubstorm nightside ...
Hubert, Benoît, Hubert, B., Milan, S. E., B. Hubert (7590023), Steve E. Milan (7589666), Grocott, A., Adrian Grocott (7590026)   +6 more
core   +4 more sources

The magnetosphere under weak solar wind forcing [PDF]

, 2007
The Earth's magnetosphere was very strongly disturbed during the passage of the strong shock and the following interacting ejecta on 21–25 October 2001. These disturbances included two intense storms (Dst*≈−250 and −180 nT, respectively).
Rich, F. J., S. W. H. Cowley, Jordanova, V. K., R. B. Torbert, S. W. H. Cowley (7590302), A. Sharma, Y. Miyoshi (7592057), Adrian Grocott (7590026), Farrugia, Charlie J., V. K. Jordanova (7592063), C. J. Farrugia, A. Grocott, Sharma, A., V. K. Jordanova, C. J. Farrugia (7592051), Farrugia, C. J., P. E. Sandholt (7592054), R. B. Torbert (7592066), Grocott, A., Miyoshi, Y., P. E. Sandholt, Torbert, Roy B., Sandholt, P. E., Y. Miyoshi, Cowley, S. W. H., A. Sharma (5739), F. J. Rich, Torbert, R. B., F. J. Rich (7592060)   +28 more
core   +5 more sources

Polar Cap Patch Prediction in the Expanding Contracting Polar Cap Paradigm [PDF]

Space Weather, 2019
AbstractSpace weather can cause serious disturbances of global navigation satellite systems (GNSS) used for positioning and navigation purposes. This paper describes a new method to forecast space weather disturbances on GNSS at high latitudes, in which we describe the formation and propagation of polar cap patches and predict their arrival at the ...
A. Fæhn Follestad, L. B. N. Clausen, E. G. Thomas, Y. Jin, A. Coster   +4 more
openaire   +2 more sources

On the Polar Caps of the Three Musketeers [PDF]

The Astrophysical Journal, 2005
XMM-Newton EPIC observations of PSR B0656+14, PSR B1055-52, and Geminga have substantially increased the collection of statistics available for these three isolated neutron stars, so apparently similar to deserve the nickname of the Three Musketeers, given to them by Becker & Trumper.
Deluca, A., Caraveo, P. A., Mereghetti, S., Negroni, M., F. Bignami, G.   +4 more
openaire   +2 more sources

Spherical Caps in Cell Polarization [PDF]

Biophysical Journal, 2018
Intracellular symmetry breaking plays a key role in wide range of biological processes, both in single cells and in multicellular organisms. An important class of symmetry-breaking mechanisms relies on the cytoplasm/membrane redistribution of proteins that can autocatalytically promote their own recruitment to the plasma membrane.
Diegmiller, Rocky, Montanelli, Hadrien, Muratov, Cyrill B, Shvartsman, Stanislav Y   +3 more
openaire   +3 more sources

INFLUENCE OF THE POLAR CAP CURRENT ON PULSAR POLARIZATION [PDF]

The Astrophysical Journal, 2012
20 pages of text, 11 figures, Revised version with the correction to abscissa of the left column panels in Figure 3, and inclusions of Figure 11 and discussions on the effect of ExB drift.
Kumar, D., Gangadhara, R. T.
openaire   +2 more sources