28 citations · 201 across the 24 of their papers we have counts for
24 papers
Evidence of energy conversion in weakly collisional plasma during an interplanetary coronal mass ejection
Omkar Dhamane, Anil Raghav, Simone Benella +14
Intervals of enhanced turbulent fluctuations are typically less frequent within the magnetic cloud region of an interplanetary coronal mass ejection (ICME). We investigate two such…
Pinching of ICME Flux Rope: Unprecedented Multipoint Observations of Internal Magnetic Reconnection during Gannon's Superstorm
Shibotosh Biswas, Ankush Bhaskar, Anil Raghav +4
The extreme solar storm of May 10, 2024, during the 25th solar cycle, which recorded a symmetric H component index (Sym-H) reaching -500 nT, was the strongest since the 2003 Hallow…
Magnetic Moment-Field Interactions, A Universal Mechanism for Particle Energization
Anil Raghav, Ajay Kumar, Mariyam Karari +4
Magnetic reconnection is a pivotal mechanisms in the energization and heating of cosmic plasmas, yet the exact process of energy transfer during these events remain elusive. Tradit…
AuroraMag: Twin Explorer of Asymmetry in Aurora and Solar Wind-Magnetosphere Coupling
Ankush Bhaskar, Jayadev Pradeep, Shyama Narendranath +10
In the present-day context, small satellites and their constellations consisting of varying sizes (nano, micro, pico satellites) are being favored for remote sensing and in situ pr…
Quasi-planar ICME sheath: a cause of first two-step extreme geomagnetic storm of 25th solar cycle observed on 23 April 2023
Kalpesh Ghag, Anil Raghav, Ankush Bhaskar +5
Interplanetary Coronal Mass Ejections (ICMEs) are prominent drivers of space weather disturbances and mainly lead to intense or extreme geomagnetic storms. The reported studies sug…
Observational Validation of Cosmic Ray Acceleration Hypothesis
Anil Raghav, Kalpesh Ghag, Omkar Dhamane +3
Despite centuries of rigorous theoretical and observational research, the origin and acceleration mechanism of Galactic Cosmic Rays (GCRs) remain a mystery. In 1949, Fermi proposed…
First analysis of in-situ observation of surface Alfvén waves in ICME flux rope
Anil Raghav, Omkar Dhamane, Zubair Shaikh +8
Alfvén waves (AWs) are inevitable in space and astrophysical plasma. Their crucial role in various physical processes, occurring in plasma, has triggered intense research in solar-…
Distinct polytropic behavior of plasma during ICME-HSS Interaction
Kalpesh Ghag, Anil Raghav, Zubair Shaikh +3
Interplanetary Coronal Mass Ejections (ICMEs) and High Speed Streams (HSSs) are noteworthy drivers of disturbance of interplanetary space. Interaction between them can cause severa…
In-situ Observation Of Alfv'en Waves In Icme Shock-Sheath Indicates Existence Of Alfv'enic Turbulence
Anil Raghav, Zubair Shaikh, Omkar Dhamane +3
The dynamic evolution of coronal mass ejection (CME) in interplanetary space generates highly turbulent, compressed, and heated shock-sheath. This region furnishes a unique environ…
Observation of Alfven wave in ICME-HSS interaction region
Omkar Dhamane, Anil Raghav, Zubair Shaikh +7
The Alfvén wave (AW) is the most common fluctuation present within the emitted solar wind from the Sun. Moreover, the interaction between interplanetary coronal mass ejection (ICME…
The role of extreme geomagnetic storms in the Forbush decrease profile
Anil Raghav, Prathmesh Tari, Kalpesh Ghag +7
The Forbush decrease (FD) and Geomagnetic storm (GS) are the two distinct space weather events having common causing agents like interplanetary coronal mass ejection (ICME) or coro…
The Solar Enigma Decoding the Mystery of the Hot Corona and Solar Wind Acceleration
Anil Narayan Raghav
The Sun's corona, heated to temperatures exceeding one million Kelvin despite lying above the cooler photosphere, has puzzled astrophysicists since its discovery in the 1940s. Prev…
Causes of the Diurnal Variation observed in -ray Spectrum using NaI (Tl) Detector
Gauri Datar, Geeta Vichare, C. Selvaraj +2
Present paper studies the -ray spectrum observed using NaI(Tl) scintillation detector over a year. The paper reports the presence of a distinct diurnal pattern in the total numb…
Torsional Alfven wave embedded ICME magnetic cloud and corresponding geomagnetic storm
Anil N. Raghav, Ankita Kule, Ankush Bhaskar +3
The energy transfer during the interaction of large-scale solar wind structure and the Earth's magnetosphere is the chronic issue in space-weather studies. To understand this, rese…
Does the Alfvén wave disrupt the large-scale magnetic cloud structure?
Anil N. Raghav, Ankita Kule
Alfvén waves are primal and pervasive in space plasmas and significantly contributes to microscale fluctuations in the solar wind and some heliospheric processes. Here, we demonstr…
The first observable in-situ evidence of Alfvenic turbulence in shock-sheath
Anil N. Raghav, Zubair I. Shaikh
The dynamic evolution of coronal mass ejection (CME) in interplanetary space generates highly turbulent, compressed and heated shock-sheath. This region furnishes a unique environm…
The first in-situ observation of torsional Alfven waves during the interaction of large-scale magnetic clouds
Anil Raghav, Ankita Kule
The large-scale magnetic cloud such as coronal mass ejections (CMEs) is the fundamental driver of the space weather. The interaction of the multiple CMEs in interplanetary space af…
Presence of Turbulent and Ordered Local Structure within ICME shock-sheath and its Contribution in Forbush decrease
Zubair Shaikh, Anil Raghav, Ankush Bhaskar
The transient interplanetary disturbances evoke short time cosmic ray flux decrease which is known as Forbush decrease. The traditional model and understanding of Forbush decrease…
Cosmic ray acceleration via magnetic reconnection of magnetic islands/flux-ropes
Anil Raghav, Zubair Shaikh
The dynamic processes of magnetic reconnection and turbulence cause magnetic islands/flux-ropes generation. The in-situ observations suggest that the coalescence or/and contraction…
Does Local Structure Within Shock-sheath and Magnetic Cloud Affect Cosmic Ray Decrease?
Anil Raghav, Zubair Shaikh, Ankush Bhaskar +2
The sudden short duration decrease in cosmic ray flux is known as Forbush decrease which is mainly caused by interplanetary disturbances. Generally accepted view is that the first…
Low energy secondary cosmic ray flux (gamma rays) monitoring and its constrains
Anil Raghav, Ankush Bhaskar, Virendra Yadav +1
Temporal variation of secondary cosmic rays (SCR) flux was measured during the several full and new moon and days close to them at Department of Physics, University of Mumbai, Mumb…
Understanding Forbush decrease drivers based on shock-only and CME-only models using global signature of February 14, 1978 event
Anil Raghav, Ankush Bhaskar, Ajay Lotekar +2
We have studied Forbush decrease (FD) event occurred on February 14, 1978 using 43 neutron monitor observatories to understand the global signature of FD. We have studied rigidity…
Lunar eclipse induces disturbance in the lunar exosphere
Anil Raghav, Ankush Bhaskar, Virendra Yadav +3
Given the renewed scientific interest in lunar exploration missions, complete understanding of lunar near surface environment and its exosphere under different conditions is of par…
Unexpected enhancement in secondary cosmic ray flux during the total lunar eclipse of December 10, 2011
Anil Raghav, Ankush Bhaskar, Virendra Yadav +17
Temporal variation of secondary cosmic rays (SCR) flux was measured during the total lunar eclipse on December 10, 2011 and the subsequent full moon on January 8, 2012. The measure…