518 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Indian Institute of Technology GandhinagarIN282 papers
- Tata Institute of Fundamental ResearchIN161 papers
- Centre National de la Recherche ScientifiqueFR100 papers
- Indian Institute of AstrophysicsIN92 papers
- Chinese Academy of SciencesCN71 papers
- Aryabhatta Research Institute of Observational SciencesIN66 papers
- Inter-University Centre for Astronomy and AstrophysicsIN62 papers
- Harish-Chandra Research InstituteIN54 papers
- Indian Institute of Science BangaloreIN54 papers
- Indian Institute of Technology BombayIN54 papers
- Udaipur Solar ObservatoryIN53 papers
- California Institute of TechnologyUS46 papers
105 papers · 1 filter
Exploring Dark Matter, Neutrino mass and flavour anomalies in L_μ-L_τ model
Rukmani Mohanta, Shivaramakrishna Singirala, Suchismita Sahoo
We investigate Majorana dark matter in a new variant of gauge extension of Standard Model, containing three additional neutral fermions , along wi…
On Resolving the Dark LMA Solution at Neutrino Oscillation Experiments
Sandhya Choubey, Dipyaman Pramanik
In presence of non standard interactions, the solar neutrino data is consistent with two solutions, one close to the standard LMA solution with and anothe…
A theory of resistivity in Kondo lattice materials: the memory function approach
Komal Kumari, Raman Sharma, Navinder Singh +1
We theoretically analyse D.C. resistivity() in the Kondo-lattice model using the powerful memory function approach. The complete temperature evolution of is investigated usi…
Selective tuning of Hilbert spaces in states encoded with spatial modes of light
Ali Anwar, Nijil Lal, Shashi Prabhakar +1
Spatial modes of light directly give the most easily accessible degree of freedom that span an infinite dimensional Hilbert space. The higher dimensional spatial mode entanglement…
Unveiling the importance of magnetic fields in the evolution of dense clumps formed at the waist of bipolar H II regions: a case study on Sh2-201 with JCMT SCUBA-2/POL-2
Chakali Eswaraiah, Di Li, Manash R. Samal +10
We present the properties of magnetic fields (B-fields) in two clumps (clump 1 and clump 2), located at the waist of the bipolar H II region Sh2-201, based on JCMT SCUBA-2/POL-2 ob…
Characterisation of Cosmic Ray Induced Noise Events in AstroSat-CZT Imager
Debdutta Paul, A. R. Rao, Ajay Ratheesh +6
The Cadmium Zinc Telluride (CZT) Imager onboard AstroSat, consists of pixelated CZT detectors, which are sensitive to hard X-rays above 20 keV. The individual pixels are triggered…
Primordial black holes and gravitational waves in nonstandard cosmologies
Sukannya Bhattacharya, Subhendra Mohanty, Priyank Parashari
For primordial black holes (PBHs) to form a considerable fraction of cold dark matter, the required amplitude of primordial scalar perturbations is quite large ($P_ζ(k) \sim 10^{-2…
A Hot Cusp-Shaped Confined Solar Flare
Aaron Hernandez-Perez, Yang Su, Julia K. Thalmann +5
We analyze a confined flare that developed a hot cusp-like structure high in the corona (H ~ 66 Mm). A growing cusp-shaped flare arcade is a typical feature in the standard model o…
New insights in giant molecular cloud hosting S147/S153 complex: signatures of interacting clouds
J. S. Dhanya, L. K. Dewangan, D. K. Ojha +1
In order to understand the formation of massive OB stars, we report a multi-wavelength observational study of a giant molecular cloud hosting the S147/S153 complex (size ~90 pc X 5…
Quantum Hall states for in optical lattices
Rukmani Bai, Soumik Bandyopadhyay, Sukla Pal +2
We examine the quantum Hall (QH) states of the optical lattices with square geometry using Bose-Hubbard model (BHM) in presence of artificial gauge field. In particular, we focus o…
Heavy quark transport in a viscous semi QGP
Balbeer Singh, Hiranmaya Mishra
We study the effect of shear and bulk viscosities on the heavy quark transport coefficient within the matrix model of semi QGP. Dissipative effects are incorporated through the fir…
A new tool for predicting the solar cycle: Correlation between flux transport at the equator and the poles
Susanta Kumar Bisoi, P. Janardhan
The magnetic flux cancellation on the Sun plays a crucial role in determining the manner in which the net magnetic flux changes in every solar cycle, affecting the large scale evol…
Analytic Response Relativistic Coupled-Cluster Theory: The first application to indium isotope shifts
B. K. Sahoo, A. R. Vernon, R. F. Garcia Ruiz +16
With increasing demand for accurate calculation of isotope shifts of atomic systems for fundamental and nuclear structure research, an analytic energy derivative approach is presen…
Pure Natural Quintessential Inflation and Dark Energy
Selvaganapathy J
We propose the pure natural quintessential inflation model which is motivated by Witten's conjecture, where the axion couples to pure Yang-Mills gauge field at large N limi…
Inflation models in the light of self-interacting sterile neutrinos
Arindam Mazumdar, Subhendra Mohanty, Priyank Parashari
Short baseline neutrino experiments, like LSND and MiniBooNE experiments, pointed towards the existence of eV mass scale sterile neutrinos. To reconcile sterile neutrinos with cosm…
Magnetic fields in a hot dense neutrino plasma and the Gravitational Waves
Arun Kumar Pandey, Pravin Kumar Natwariya, Jitesh R Bhatt
In the present work, we have studied the spectrum of the primordial gravitational waves due to magnetic instability in the presence of neutrino asymmetry. The magnetic instability…
Soft leptogenesis in the NMSSM with a singlet right-handed neutrino superfield
Waleed Abdallah, Abhass Kumar, Abhijit Kumar Saha
In this work, we explore soft leptogenesis in the NMSSM framework extended by a right-handed neutrino superfield. We calculate the CP asymmetry, , and find it to be no…
Infrared spectroscopy of the recent outburst in V1047 Cen (Nova Centauri 2005)
T. R. Geballe, D. P. K. Banerjee, A. Evans +14
Fourteen years after its eruption as a classical nova (CN), V1047 Cen (Nova Cen 2005) began an unusual re-brightening in 2019 April. The amplitude of the brightening suggests that…
Solar X-ray Monitor (XSM) On-board Chandrayaan-2 Orbiter
M. Shanmugam, S. V. Vadawale, Arpit R. Patel +17
Solar X-ray Monitor (XSM) is one of the scientific instruments on-board Chandrayaan-2 orbiter. The XSM along with instrument CLASS (Chandras Large Area Soft x-ray Spectrometer) com…
A Comparative Analysis of Non-relativistic and Relativistic Calculations of Electric Dipole Moments and Polarizabilities of Heteronuclear Alkali Dimers
R. Mitra, V. S. Prasannaa, B. K. Sahoo
We analyze the molecular electric dipole moments (PDMs) and static electric dipole polarizabilities of heteronuclear alkali dimers in their ground states by employing coupled-clust…
Investigation of a confined C-class flare in an arch filament system close to a regular sunspot
Rohan Eugene Louis
A moderate C1.1 class confined flare is investigated here, which occurred on 2013 September 24 at 22:56~UT, in an arch filament system close to a regular, unipolar sunspot. Spectro…
Formation of Primordial Black Holes from Warm Inflation
Richa Arya
Primordial Black Holes (PBHs) serve as a unique probe to the physics of the early Universe, particularly inflation. In light of this, we study the formation of PBHs by the collapse…
Another Mini Solar Maximum in the Offing: A Prediction for the Amplitude of Solar Cycle 25
Susanta Kumar Bisoi, P. Janardhan, S. Ananthakrishnan
We examine the temporal changes in both solar polar magnetic field (PMF) at latitudes and heliospheric magnetic field (HMF) at 1 AU during solar cycles 21--24 wi…
NuSTAR view of Be/X-ray binary pulsar 2S 1417-624 during 2018 giant outburst
Shivangi Gupta, Sachindra Naik, Gaurava K. Jaisawal
We report the results obtained from a detailed timing and spectral studies of Be/X-ray binary pulsar 2S 1417-624 using data from Swift and NuSTAR observatories. The observations we…