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Browsing by Author "Ojha, Biswajit"

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Electromagnetic ion cyclotron waves in the Earth’s magnetosphere with losscone distribution

Singh, Satyavir; Ojha, Biswajit; Lakhina, G. S. (2019)

Satellite observations in the magnetosphere have shown that Pc 1, 2 waves with frequencies (0.1-5Hz) below the hydrogen gyrofrequency have left-handed to linear polarization and are related to electromagnetic ion cyclotron ...
Multipoint analysis of source regions of EMIC waves and rapid growth of subpackets

Ojha, Biswajit; Omura, Yoshiharu; Singh, Satyavir; Lakhina, Gurbax S. (2021)

Electromagnetic Ion Cyclotron (EMIC) rising tone emissions are important in understanding the nonlinear wave evolution and interaction with the energetic particles. We present observations of rising tone emissions of EMIC ...
Observations of co-existing rising and falling tone emissions of electromagnetic ion cyclotron waves

Ojha, Biswajit; Omura, Yoshiharu; Singh, Satyavir; Lakhina, Gurbax S. (2024)

We report observations of co-existing rising and falling tone emissions of electromagnetic ion cyclotron (EMIC) waves by THEMIS E spacecraft. The investigation of these fne structures of the EMIC waves is essential from ...
Plasma wave occurrences during substorm events

Shah, Trunali; Bhaskara, Veenadhari; Omura, Yoshiharu; Ojha, Biswajit; Singh, Satyavir; Ebihara, Yusuke (2024)

The Earth's magnetosphere is a dynamic system subject to various disturbances, among which substorms play a significant role in influencing its impact on the surrounding plasma environment. Close to the substorm onset ...
Solar wind control of wave activity in the magnetosphere

Ojha, Biswajit (IIG, 2022)

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