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
100 papers · 1 filter
ALPs and Heavy Hadron Chiral Perturbation Theory
Namit Mahajan
Axion Like Particles (ALPs) belong to a well motivated class of particles which are part of a more complete UV theory. In this work, we initiate and present the inclusion of such A…
Search and characterization of remnant radio galaxies in the XMMLSS deep field
Sushant Dutta, Veeresh Singh, C. H. Ishwara Chandra +3
The remnant phase of a radio galaxy is characterized by the cessation of AGN activity resulting in the stoppage of jets supplying plasma to radio lobes. In this paper, we present t…
Investigating stellar variability in the open cluster region NGC 381
Jayanand Maurya, Yogesh C. Joshi, A. Panchal +1
We study variable stars in the field of the open cluster NGC 381 using photometric data observed over 27 nights and identify a total of 57 variable stars out of which five are memb…
Revisiting the galactic X-ray binary MAXI J1631-479: Implications for high inclination and a massive black hole
Sandeep K. Rout, Santosh Vadawale, Javier Garcia +1
X-ray spectroscopy of galactic black hole binaries serve as a powerful tool to gain an overall understanding of the system. Not only can the properties of the accretion disk be stu…
Highly-parallelized simulation of a pixelated LArTPC on a GPU
DUNE Collaboration, A. Abed Abud, B. Abi +1300
The rapid development of general-purpose computing on graphics processing units (GPGPU) is allowing the implementation of highly-parallelized Monte Carlo simulation chains for part…
Deciphering Colour Building Blocks of Massive Multiparton Amplitudes at 4-loops and beyond
Neelima Agarwal, Sourav Pal, Aditya Srivastav +1
The soft function in non-abelian gauge theories exponentiate, and their logarithms can be organised in terms of the collections of Feynman diagrams called Cwebs. The colour factors…
Minimal spontaneous CP-violating GUT and predictions for leptonic CP phases
Ketan M. Patel
A non-supersymmetric renormalizable model, with CP invariant Yukawa sector consisting of Lorentz scalars in and dimensional representations, is propo…
The mid-infrared molecular inventory towards Orion IRc2
Sarah Nickerson, Naseem Rangwala, Sean W. J. Colgan +8
We present the first high spectral resolution mid-infrared survey in the Orion BN/KL region, covering 7.2 to 28.3 micron. With SOFIA/EXES we target the enigmatic source Orion IRc2.…
Exploring Earth's Ionosphere and its effect on low radio frequency observation with the uGMRT and the SKA
Sarvesh Mangla, Sumanjit Chakraborty, Abhirup Datta +1
The Earth's ionosphere introduces systematic effects that limit the performance of a radio interferometer at low frequencies (\,GHz). These effects become more pronounc…
Optical and X-ray studies of Be/X-ray binary 1A 0535+262 during its 2020 giant outburst
Birendra Chhotaray, Gaurava K. Jaisawal, Neeraj Kumari +3
We report results obtained from the optical and X-ray studies of the Be/X-ray binary 1A 0535+262/HD 245770 during the 2020 October giant X-ray outburst, using the 1.2 m telescope a…
Nanoflare Heating of the Solar Corona Observed in X-rays
Vishal Upendran, Durgesh Tripathi, N. P. S. Mithun +2
The existence of the million-degree corona above the cooler photosphere is an unsolved problem in astrophysics. Detailed study of quiescent corona that exists regardless of the pha…
Frequency space derivation of linear and non-linear memory gravitational wave signals from eccentric binary orbits
Arpan Hait, Subhendra Mohanty, Suraj Prakash
The memory effect in gravitational wave (GW) signals is the phenomenon, wherein the relative position of two inertial GW detectors undergoes a permanent displacement owing to the p…
Gravitational radiation from binary systems in gravity: A semi-classical approach
Ashish Narang, Subhendra Mohanty, Soumya Jana
The rate of energy loss and orbital period decay of quasi-stable compact binary systems are derived in theory of gravity using the method of a single vertex graviton emissio…
Spectrum of colour sextet scalars in realistic SO(10) GUT
Ketan M. Patel, Saurabh K. Shukla
Incorporation of the standard model Yukawa interactions in a grand unified theory (GUT) often predicts varieties of new scalars that couple to the fermions and lead to some novel o…
Near-Earth Interplanetary Coronal Mass Ejections and Their Association with DH Type II Radio Bursts During Solar Cycles 23 and 24
Binal D. Patel, Bhuwan Joshi, Kyung-Suk Cho +2
We analyse the characteristics of interplanetary coronal mass ejections (ICMEs) during Solar Cycles 23 and 24. The present analysis is primarily based on the near-Earth ICME catalo…
Deep low-frequency radio observations of Abell 2256 II: The ultra-steep spectrum radio halo
K. Rajpurohit, E. Osinga, M. Brienza +17
We present the first detailed analysis of the radio halo in the merging galaxy cluster Abell 2256 using the LOFAR, uGMRT, and VLA. These observations combined with archival X-ray d…
Transverse momentum resummation at N3LL+NNLO for diboson processes
John M. Campbell, R. Keith Ellis, Tobias Neumann +1
Diboson processes are one of the most accessible and stringent probes of the Standard Model's electroweak gauge structure at the LHC. They will be probed at the percent level at th…
Swift and XMM-Newton observations of an RS CVn type eclipsing binary SZ Psc: Superflare and coronal properties
Subhajeet Karmakar, Sachindra Naik, Jeewan C. Pandey +1
We present an in-depth study of a large and long duration (1.3 days) X-ray flare observed on an RS CVn type eclipsing binary system SZ Psc using observations from Swift observat…
Star-forming site RAFGL 5085: Is a perfect candidate of hub-filament system ?
L. K. Dewangan, N. K. Bhadari, A. K. Maity +4
To investigate the star formation process, we present a multi-wavelength study of a massive star-forming site RAFGL 5085, which has been associated with the molecular outflow, HII…
Magnetohydrodynamics evolution of three-dimensional magnetic null in NOAA active region 11515 initiated using non-force-free field extrapolation
Sanjay Kumar, Avijeet Prasad, Ranadeep Sarkar +1
Magnetohydrodynamics simulation of active region NOAA 11515 is performed to examine the initiation of the M5.6 flaring event that starts around 10:43 UT on 2012 July 2. The simulat…
Soft X-ray Spectral Diagnostics of Multi-thermal Plasma in Solar Flares with Chandrayaan-2 XSM
N. P. S. Mithun, Santosh V. Vadawale, Giulio Del Zanna +7
Spectroscopic observations in X-ray wavelengths provide excellent diagnostics of the temperature distribution in solar flare plasma. The Solar X-ray Monitor (XSM) onboard the Chand…
The Outer spiral arm of the Milky Way using Red Clump stars
Namita Uppal, Shashikiran Ganesh, Mathias Schultheis
Aims: Our aim is to provide an observational view of the old Disc structure of the Milky Way galaxy using the distribution of red clump stars. The spiral arms, warp structure, and…
A Predictive Model
George Lazarides, Rinku Maji, Rishav Roshan +1
We discuss some testable predictions of a non-supersymmetric model supplemented by a Peccei-Quinn symmetry. We utilize a symmetry breaking pattern of that yields…
Phase-dependent charge and heat current in thermally biased short Josephson junctions formed at helical edge states
Paramita Dutta
We explore the phase-dependent charge and heat current in the short Josephson junctions with two normal metal regions attached at opposite ends, formed at helical edge states of tw…