Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006ihy..worke.140s&link_type=abstract
2nd UN/NASA Workshop on International Heliophysical Year and Basic Space Science. Proceedings of the conference held 27 Novembe
Astronomy and Astrophysics
Astrophysics
Scientific paper
Waves in ultra- low- frequency (ULF) band (periods of 1 to 1000s) are permanent feature in the region called the magnetosphere, where the behavior of charged particles is influenced by the Earth’s intrinsic magnetic field. These waves transport momentum and energy from the solar wind to the magnetosphere and further down to the ionosphere. In addition, the waves interact with charged particles in the magnetosphere modify their energy and direction of motion with important consequences for dynamic processes such as geomagnetic storm and the formation of auroral arcs. In the present paper, we have analyzed one-second data recorded by fluxgate magnetometer with 0.1nT resolution observed at Indian Antarctic station, Maitri (geom. lat. 620S, geom. long. 57.230E, L=4.5). We have studied the various characteristic features of Pi-2 pulsations (10 MHz) observed on October 1, 2003 during 08-12 UT. The detailed results will be presented during the workshop.
Krishna Sinha A.
Pathan B. M.
Singh Ashok K.
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