15 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Inter-University Centre for Astronomy and AstrophysicsIN7 papers
- Homi Bhabha National InstituteIN5 papers
- University of KashmirIN5 papers
- Bhabha Atomic Research Center HospitalIN3 papers
- Canadian Quantum Research CenterCA3 papers
- Indian Institute of Technology RoorkeeIN3 papers
- Jamia Millia IslamiaIN3 papers
- Tezpur UniversityIN3 papers
- Bhabha Atomic Research CentreIN2 papers
- Islamic University of Science and TechnologyIN2 papers
- National Institute of Technology RourkelaIN2 papers
- University of British Columbia, Okanagan CampusCA2 papers
20 papers
Multiwavelength spectral and temporal analysis of VHE Blazar 1ES 1959+650: Tracing emission mechanisms across flux states
Peer Anjum, Athar A. Dar, Zahir Shah +2
The high-synchrotron-peaked BL Lac object 1ES\,1959+650 exhibited pronounced activity between MJD~60310 -- 60603, including a very high energy (VHE) detection reported by LHAASO. T…
Multi Messenger Study of GRB 221009A with VHE Gamma-ray and Neutrino Afterglow from a Gaussian Structured Jet
T. Mondal, S. Razzaque, Jagdish C. Joshi +2
Recent detections of very-high-energy (VHE; ) emission from GRB afterglows, most notably the unprecedented brightness of GRB~221009A observed by LHAASO, reve…
Inflationary Dynamics of Mutated Hilltop Inflation in Einstein-Gauss-Bonnet Gravity Under New Slow-Roll Approximations with Generalised Reheating
Yogesh, Mehnaz Zahoor, Kashif Ali Wani +1
The advancement in the observational cosmology of the early universe such as Cosmic Microwave Background (CMB) observations, puts severe constraints on the inflationary models. Man…
Likelihood and Deep Learning Analysis of the electron neutrino event sample at Intermediate Water Cherenkov Detector (IWCD) of the Hyper-Kamiokande experiment
T. Mondal, N. W. Prouse, P. de Perio +2
Hyper-Kamiokande (Hyper-K) is a next-generation long baseline neutrino experiment. One of its primary physics goals is to measure neutrino oscillation parameters precisely, includi…
Gravitational memory signal from neutrino self-interactions in supernova
Soumya Bhattacharya, Debanjan Bose, Indranil Chakraborty +2
Neutrinos with large self-interactions, arising from exchange of light scalars or vectors with mass , can play a useful role in cosmology for structure forma…
Understanding the Broadband Emission Process of 3C 279 through Longterm Spectral Analysis
Aminabi Thekkoth, S. Sahayanathan, Zahir Shah +2
The long term broadband spectral study of Flat Spectrum Radio Quasars during different flux states has the potential to infer the emission mechanisms and the cause of spectral vari…
A Novel Application of Quantum Speed Limit to String Theory
Arshid Shabir, Salman Sajad Wani, Raja Nisar Ali +6
In this work, we investigate the implications of the concept of quantum speed limit in string field theory. We adopt a novel approach to the problem of time on world-sheet based on…
Gamma Ray Bursters and Black Holes in the Gravity's Rainbow
Moh Vaseem Akram, Imtiyaz Ahmad Bhat, Anver Aziz
In this letter, we analyze the modification to the thermodynamics of a Schwarzchild black hole and a Kerr black hole due to gravity's rainbow. The metric for these black holes will…
Nonthermal acceleration radiation of atoms near a black hole in presence of dark energy
Syed Masood A. S. Bukhari, Imtiyaz Ahmad Bhat, Chenni Xu +1
We investigate how dark energy affects atom-field interaction. To this end, we consider acceleration radiation of a freely falling atom close to a Schwarzschild black hole (BH) in…
Correlations between X-ray spectral parameters of Mkn 421 using long-term Swift-XRT data
Rukaiya Khatoon, Zahir Shah, Jyotishree Hota +3
We have performed a detailed analysis of the X-ray spectra of the blazar Mkn 421 using Swift-XRT observations taken between 2005 and 2020, to quantify the correlations between spec…
Multi-wavelength study of blazar 4C +01.02 during its long-term flaring activity in 2014-2017
Malik Zahoor, Shah Zahir, Sunder Sahayanathan +2
We conducted a detailed long-term spectral and temporal study of flat spectrum radio quasar 4C +01.02, by using the multi-wavelength observations from Fermi-LAT, Swift-XRT, and Swi…
Very High Energy Flat Spectral Radio Quasar Candidates
Zahoor Malik, Sunder Sahayanathan, Zahir Shah +2
The attenuation of very high energy (VHE) photons by the extragalactic background light (EBL) prevents the observation of high redshift flat spectrum radio quasars (FSRQs). However…
The effect of loop quantum gravitational rainbow functions on the formation of naked singularities
Moh Vaseem Akram, Imtiyaz Ahmad Bhat, Anver Aziz +1
In this paper, we will investigate the consequences of loop quantum gravitational modifications on the formation of naked singularities. The loop quantum gravitational effects will…
Model-independent Redshift Estimation of BL Lac Objects through VHE Observations
Malik Zahoor, Sunder Sahayanathan, Shah Zahir +3
The very high energy (VHE) gamma-ray spectral indices of blazars show strong correlation with the source redshift. Absence of any such correlation in low energy gamma rays and X-ra…
Understanding the X-ray spectral curvature of Mkn 421 using broadband AstroSat observations
Jyotishree Hota, Zahir Shah, Rukaiya Khatoon +3
We present a time-resolved X-ray spectral study of the high energy peaked blazar Mkn 421 using simultaneous broadband observations from the LAXPC and SXT instruments on-board Astro…
Temporal and spectral study of PKS 0208-512 during the 2019-2020 flare
Rukaiya Khatoon, Raj Prince, Zahir Shah +2
We present the temporal and spectral study of blazar PKS 0208-512, using recent flaring activity from November 2019 to May 2020, as detected by the Fermi-LAT observatory. The conte…
The large scale structure formation in an expanding universe
Mir Hameeda, Behnam Pourhassan, Syed Masood +3
In this paper, we analyze the effects of expansion on large scale structure formation in our Universe. We do that by incorporating a cosmological constant term in the gravitational…
Shell model study of high-spin states and band terminations in As
Vikas Kumar, Praveen C. Srivastava
In the present work, recently available experimental data for different bands of As [Phys. Rev. C {\bf 98}, 024313 (2018)] have been interpreted within the framework of the…
Gamow-Teller transition strengths for selected shell nuclei
Vikas Kumar, Praveen C. Srivastava, Anil Kumar
We have reported a systematic shell model description of the experimental Gamow-Teller transition strength for Sc Ca, Ti Sc,…
description of collectivity for shell nuclei
A. Saxena, A. Kumar, V. Kumar +2
In the present work, we have reported shell model results for open shell nuclei Ne, Mg and Si isotopes with in -shell model space. We have performed calcula…