7 citations · 10 across the 12 of their papers we have counts for
13 papers
Source Surface Height Optimisation for Improved Solar Wind Velocity Forecasting Across Solar Cycles 23, 24 and 25
Sandeep Kumar, Nandita Srivastava, Dana-Camelia Talpeanu
The potential field source surface (PFSS) model is a cornerstone of many state-of-the-art space weather forecasting frameworks. It includes a single physical free parameter, the so…
Three-Phase Evolution of Aspect Ratio in Fast and Slow CMEs from the Sun to 1 AU
Wageesh Mishra, Anjali Agarwal, Nandita Srivastava
Coronal mass ejections (CMEs) undergo significant geometric evolution as they propagate from the Sun to 1 AU, influencing their radial size, expansion, and space weather impact. We…
Propagation Characteristics of the April 21, 2023 CME
Sandeep Kumar, Nandita Srivastava, Parthib Banerjee +1
Accurate estimation of propagation characteristics of coronal mass ejections (CMEs) is crucial for predicting their geoeffectiveness. Stereoscopic techniques to study the kinematic…
Multi-directional investigations on quiet time suprathermal ions measured by ASPEX-STEPS on-board Aditya L1
Aakash Gupta, Dibyendu Chakrabarty, Santosh Vadawale +26
The origin, acceleration and anisotropy of suprathermal ions in the interplanetary medium during quiet periods have remained poorly understood issues in solar wind physics. To addr…
Energetic ( 2 MeV) ion fluxes measured by ASPEX-STEPS on board Aditya-L1 during its earth-bound phase
Dibyendu Chakrabarty, Bijoy Dalal, Santosh Vadawale +26
During its earth-bound phase of the Aditya-L1 spacecraft of India, the Supra-Thermal and Energetic Particle Spectrometer (STEPS) of the Aditya Solar wind Particle EXperiment (ASPEX…
On The Influence Of The Solar Wind On The Propagation Of Earth-impacting Coronal Mass Ejections
Sandeep Kumar, Nandita Srivastava, Nat Gopalswamy +1
Coronal Mass Ejections (CMEs) are subject to changes in their direction of propagation, tilt, and other properties as they interact with the variable solar wind. We investigated th…
Investigation on upstream ion events from L1 point observation: New Insights
Bijoy Dalal, Dibyendu Chakrabarty, Christina M. S. Cohen +1
Origin of energetic upstream ions propagating towards the Sun from the Earth's bow shock is not understood clearly. In this letter, relationship between solar wind suprathermal and…
Origins of Very Low Helium Abundance Streams Detected in the Solar Wind Plasma
Yogesh, N. Gopalswamy, D. Chakrabarty +4
The abundance of helium () in the solar wind exhibits variations typically in the range from 2-5% with respect to solar cycle activity and solar wind velocity. However, the…
Modelling the magnetic vectors of ICMEs at different heliocentric distances with INFROS
Ranadeep Sarkar, Nandita Srivastava, Nat Gopalswamy +1
The INterplanetary Flux ROpe Simulator (INFROS) is an observationally constrained analytical model dedicated for forecasting the strength of the southward component (Bz) of the mag…
Photospheric Lorentz force changes in eruptive and confined solar flares
Samriddhi Sankar Maity, Ranadeep Sarkar, Piyali Chatterjee +1
Solar flares are known to leave imprints on the magnetic field at the photosphere, often manifested as an abrupt and permanent change in the downward-directed Lorentz force in loca…
Rotation of a Stealth CME on 2012 October 5 Observed in the Inner Heliosphere
Sandeep Kumar, Dinesha V. Hegde, Nandita Srivastava +3
Coronal Mass Ejections (CMEs) are subject to changes in their direction of propagation, tilt, and other properties. This is because CMEs interact with the ambient solar wind and ot…
Differential behaviors of suprathermal He and Fe populations in the interplanetary medium during solar cycle 24
Bijoy Dalal, Dibyendu Chakrabarty, Nandita Srivastava
Investigations on the solar cycle variation of the properties of suprathermal populations (H and other heavy ions like He, He, C, O and Fe) in the solar wind are sparse and…
Solar cycle variation of coronal mass ejections contribution to solar wind mass flux
Wageesh Mishra, Nandita Srivastava, Zavkiddin Mirtoshev +1
Coronal Mass Ejections (CMEs) contributes to the perturbation of solar wind in the heliosphere. Thus, depending on the different phases of the solar cycle and the rate of CME occur…