Drop of solar wind at the end of the 20th century

YI Yermolaev, IG Lodkina… - Journal of …, 2021 - Wiley Online Library
Variations in the solar wind (SW) parameters with scales of several years are an important
characteristic of solar activity and the basis for a long‐term space weather forecast. We …

Weakest solar cycle of the space age: A study on solar wind–magnetosphere energy coupling and geomagnetic activity

R Hajra - Solar Physics, 2021 - Springer
Abstract Solar Cycle 24, from December 2008 to December 2019, is recorded to be the
weakest in magnitude in the space age (after 1957). A comparative study of this cycle with …

[图书][B] Physics of the Sun: A first course

DJ Mullan - 2022 - taylorfrancis.com
With an emphasis on numerical modelling, Physics of the Sun: A First Course presents a
quantitative examination of the physical structure of the Sun and the conditions of its …

Solar X-ray monitor on board the Chandrayaan-2 orbiter: in-flight performance and science prospects

NPS Mithun, SV Vadawale, A Sarkar, M Shanmugam… - Solar Physics, 2020 - Springer
Abstract The Solar X-ray Monitor (abbreviated as XSM) on board India's Chandrayaan-2
mission is designed to carry out broadband spectroscopy of the Sun from lunar orbit. It …

Solar coronal density turbulence and magnetic field strength at the source regions of two successive metric type II radio bursts

R Ramesh, C Kathiravan, A Kumari - The Astrophysical Journal, 2023 - iopscience.iop.org
We report spectral and polarimeter observations of two weak, low-frequency (≈ 85–60 MHz)
solar coronal type II radio bursts that occurred on 2020 May 29 within a time interval≈ 2 …

Long‐term variations of the geomagnetic activity: A comparison between the strong and weak solar activity cycles and implications for the space climate

R Hajra, A Marques de Souza Franco… - Journal of …, 2021 - Wiley Online Library
We study the long‐term variations of geomagnetic activity using more than five solar cycles
of geomagnetic and solar wind observations. From the Dst index variation, 1523 …

Another mini solar maximum in the offing: A prediction for the amplitude of Solar Cycle 25

SK Bisoi, P Janardhan… - Journal of Geophysical …, 2020 - Wiley Online Library
We examine the temporal changes in both solar polar magnetic field (PMF) at latitudes≥
45° and heliospheric magnetic field (HMF) at 1 AU during solar cycles 21–24 with emphasis …

Low-frequency solar radio type II bursts and their association with space weather events during the ascending phase of solar cycle 25

T Ndacyayisenga, J Uwamahoro… - Annales …, 2024 - angeo.copernicus.org
Type II solar radio bursts are signatures of the coronal shocks and, therefore, particle
acceleration events in the solar atmosphere and interplanetary space. Type II bursts can …

Turbulent proton heating rate in the solar wind from 5–45 r⊙

KS Raja, P Subramanian, M Ingale… - The Astrophysical …, 2021 - iopscience.iop.org
Various remote sensing observations have been used so far to probe the turbulent
properties of the solar wind. Using the recently reported density modulation indices that are …

Preparing for solar and heliospheric science with the SKAO: An Indian perspective

D Oberoi, SK Bisoi, KS Raja, D Kansabanik… - Journal of Astrophysics …, 2023 - Springer
Abstract The Square Kilometre Array Observatory (SKAO) is perhaps the most ambitious
radio telescope envisaged yet. It will enable unprecedented studies of the Sun, corona and …