6 papers
A study on the contribution of the interplanetary medium in radio occultation experiments
Keshav Aggarwal, R. K. Choudhary, Abhirup Datta +4
Irregularities in electron density within the interplanetary medium (IPM) can cause fluctuations in the Doppler frequency of spacecraft radio signals. The amplitude of these fluctu…
Probing the Solar Corona and the Solar Wind Using Angular Broadening Observations with the SKA
Peijin Zhang, John Morgan, Divya Oberoi +9
Angular broadening observations of compact radio sources provide a powerful method for probing the solar corona and solar wind. Such observations enable studies of the phase struct…
A generalized method for estimating solar wind speeds and densities using spectral broadening for a Kolmogorov turbulence spectrum
Keshav Aggarwal, R. K. Choudhary, Abhirup Datta +3
We present a unified method to derive both solar wind velocities and coronal electron densities in the near-Sun corona using Doppler spectral broadening of spacecraft radio signals…
A turbulence index independent framework for deriving solar wind speed and coronal electron density from radio spectral broadening
Keshav Aggarwal, R. K. Choudhary, Abhirup Datta +3
We present a turbulence index independent framework for simultaneously deriving solar wind velocity and coronal electron density in the near-Sun region using the spectral broadenin…
On the estimation of solar wind velocity under varying solar activity conditions using Akatsuki measurements
Keshav Aggarwal, R. K. Choudhary, Abhirup Datta +1
We present an analysis of solar wind dynamics based on Doppler spectral width measurements of X-band radio signals from the Japanese Akatsuki spacecraft. The dataset includes two s…
Insights into Solar Wind Flow Speeds from the Coronal Radio occultation Experiment: Findings from the Indian Mars Orbiter Mission
Keshav Aggarwal, R. K. Choudhary, Abhirup Datta +2
Using data collected by the Indian Mars Orbiter Mission in October 2021, we investigated coronal regions of the Sun by analyzing the Doppler spectral width of radio signals to esti…