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
128 papers · 1 filter
Physical insights from the spectrum of the radio halo in MACS J0717.5+3745
K. Rajpurohit, G. Brunetti, A. Bonafede +18
We present new LOFAR observations of the massive merging galaxy cluster MACS J0717.5+3745. The cluster hosts the most powerful radio halo known to date. These new observations, in…
Detection of X-ray pulsations at the lowest observed luminosity of Be/X-ray binary pulsar EXO 2030+375 with AstroSat
Gaurava K. Jaisawal, Sachindra Naik, Shivangi Gupta +4
We present the results obtained from timing and spectral studies of Be/X-ray binary pulsar EXO 2030+375 using observations with the Large Area Xenon Proportional Counters and Soft…
Asteroseismology of sz lyn using multi-band high time resolution photometry from ground and space
J. Adassuriya, S. Ganesh, J. L. Gutierrez +4
We report the analysis of high temporal resolution ground and space based photometric observations of SZ Lyncis, a binary star one of whose components is a high amplitude Scuti…
VHE gamma-ray detection of FSRQ QSO B1420+326 and modeling of its enhanced broadband state in 2020
V. A. Acciari, S. Ansoldi, L. A. Antonelli +230
Context. QSO B1420+326 is a blazar classified as a Flat Spectrum Radio Quasar (FSRQ). In the beginning of 2020 it underwent an enhanced flux state. An extensive multiwavelength cam…
Mechanical aspects of Near-Infrared Imager Spectrometer and Polarimeter
Prashanth Kumar Kasarla, Pitamber Singh Patwal, Hitesh Kumar L. Adalja +9
Near-infrared Imager Spectrometer and Polarimeter (NISP) is a camera, an intermediate resolution spectrograph and an imaging polarimeter being developed for upcoming 2.5m telescope…
Electronics design and development of Near-Infrared Imager, Spectrometer and Polarimeter
Deekshya Roy Sarkar, Amish B. Shah, Alka Singh +9
NISP, a multifaceted near-infrared instrument for the upcoming 2.5m IR telescope at MIRO Gurushikhar, Mount Abu, Rajasthan, India is being developed at PRL, Ahmedabad. NISP will ha…
Optical aspects of Near-Infrared Imager Spectrometer and Polarimeter instrument (NISP)
Archita Rai, Shashikiran Ganesh, Sukamal K. Paul +10
As a Near-IR instrument to PRL's upcoming 2.5 m telescope, NISP is designed indigeniously at PRL to serve as a multifaceted instrument. Optical, Mechanical and Electronics subsyste…
Forbidden atomic oxygen emissions in the Martian dayside upper atmosphere
Susarla Raghuram, Sonal Kumar Jain, Anil Bhardwaj
Recently, Nadir and Occultation for Mars Discovery (NOMAD) ultraviolet and visible spectrometer instrument on board the European Space Agency's ExoMars Trace Gas Orbiter (TGO) simu…
Invisible neutrino decay : First vs second oscillation maximum
Kaustav Chakraborty, Debajyoti Dutta, Srubabati Goswami +1
We study the physics potential of the long-baseline experiments T2HK, T2HKK and ESSSB in the context of invisible neutrino decay. We consider normal mass ordering and assume tha…
A physico-chemical model to study the ion densitydistribution in the inner coma of comet C/2016 R2(Pan-STARRS)
Susarla Raghuram, Anil Bhardwaj, Damien Hutsemékers +3
The recent observations show that comet C/2016 R2 (Pan-Starrs) has a unique and peculiar composition when compared with several other comets observed at 2.8 au heliocentric distanc…
The Relativistic Jet Orientation and Host Galaxy of the Peculiar Blazar PKS 1413+135
A. C. S. Readhead, V. Ravi, I. Liodakis +26
PKS 1413+135 is one of the most peculiar blazars known. Its strange properties led to the hypothesis almost four decades ago that it is gravitationally lensed by a mass concentrati…
Charge radii of exotic potassium isotopes challenge nuclear theory and the magic character of
Á. Koszorús, X. F. Yang, W. G. Jiang +26
Nuclear charge radii are sensitive probes of different aspects of the nucleon-nucleon interaction and the bulk properties of nuclear matter; thus, they provide a stringent test and…
Multi-wavelength view of the galactic black-hole binary GRS 1716-249
Sandeep K. Rout, Santosh V. Vadawale, Aarthy E. +5
The origins of X-ray and radio emissions during an X-ray binary outburst are comparatively better understood than those of ultraviolet, optical and infrared radiation. This is beca…
Implications of the Dark-LMA solution for neutrino mass matrices
Monojit Ghosh, Srubabati Goswami, Ananya Mukherjee
In this work we have re-investigated two different kinds of texture zero ansatz of the low energy neutrino mass matrix in view of the Dark-Large-Mixing-Angle (DLMA) solution of the…
Understanding the radio relic emission in the galaxy cluster MACS J0717.5+3745: spectral analysis
K. Rajpurohit, D. Wittor, R. J. van Weeren +21
Radio relics are diffuse, extended synchrotron sources that originate from shock fronts generated during cluster mergers. The massive merging galaxy cluster MACS J0717.5+3745 hosts…
uGMRT detection of associated HI 21 cm absorption at
J. N. H. S. Aditya, Regina Jorgenson, Vishal Joshi +3
We report a uGMRT detection of HI 21-cm absorption associated with the radio source 8C 0604+728, at . The source is at the highest redshift at which associated HI 21-c…
Modelling heterogeneous dust particles. An application to cometary polarization
Prithish Halder, Shashikiran Ganesh
In this work, we introduce a comet dust model that incorporates multiple dust morphologies along with inhomogeneous mixture of silicate minerals and carbonaceous materials under po…
Infrared spectroscopy of CK Vulpeculae: revealing a remarkably powerful blast from the past
D. P. K. Banerjee, T. R. Geballe, A. Evans +6
CK Vulpeculae, which erupted in AD 1670-71, was long considered to be a nova outburst; however, recent observations have required that alternative scenarios be considered. Long sli…
Non-thermal Hot Dark Matter from Inflaton/Moduli Decay: The Momentum Distribution and Relaxing the Cosmological Mass Bound
Sukannya Bhattacharya, Subinoy Das, Koushik Dutta +3
Decay of the inflaton or moduli which dominated the energy density of the universe at early times leads to a matter to radiation transition epoch. We consider non-thermal sterile d…
Chemical speciation and source apportionment of ambient PM2.5 in New Delhi before, during, and after the Diwali fireworks
Chirag Manchanda, Mayank Kumar, Vikram Singh +7
Diwali is among the most important Indian festivals, and elaborate firework displays mark the evening's festivities. This study assesses the impact of Diwali on the concentration,…
Flavour specific neutrino self-interaction: tension and IceCube
Arindam Mazumdar, Subhendra Mohanty, Priyank Parashari
Self-interaction in the active neutrinos is studied in the literature to alleviate the tension. Similar self-interaction can also explain the observed dips in the flux of the…
The Search for Fast Transients with CZTI
Y. Sharma, A. Marathe, V. Bhalerao +9
The Cadmium Zinc Telluride Imager on AstroSat has proven to be a very effective all-sky monitor in the hard X-ray regime, detecting over three hundred GRBs and putting highly compe…
Low Energy Constraints From Absolute Neutrino Mass Observables and Lepton Flavor Violation in Left-Right Symmetric Model
Srubabati Goswami, Vishnudath K N
We have studied the correlations among the three absolute neutrino mass observables - the effective Majorana mass () which can be obtained from neutrinoless double beta dec…
Wavefunction structure in quantum many-fermion systems with -body interactions: conditional -normal form of strength functions
V. K. B. Kota, Manan Vyas
For finite quantum many-particle systems modeled with say fermions in single particle states and interacting with -body interactions (), the wavefunction struc…