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- Tata Institute of Fundamental ResearchIN268 papers
- Centre National de la Recherche ScientifiqueFR257 papers
- Joint Institute for Nuclear ResearchRU257 papers
- Korea UniversityKR255 papers
- Florida State UniversityUS253 papers
- Lawrence Livermore National LaboratoryUS253 papers
- University of California, RiversideUS252 papers
- University of DebrecenHU251 papers
- Peking UniversityCN248 papers
- Charles UniversityCZ247 papers
- European Organization for Nuclear ResearchCH244 papers
- University of Colorado BoulderUS244 papers
42 papers · 1 filter
Peculiar Behavior of Optical Polarization in Blazar 1ES 1959+650: Role of Jet Magnetic Field and Geometry
A. Singh, A. Tolamatti, K. K. Singh +2
Measurements of high degree of optical polarization from blazars provide a strong evidence for the optically thin synchrotron radiation from the relativistic leptons in the jet. Th…
Particle acceleration to PeV energies in Pulsar Wind Nebula: a two zone model
Gunindra Krishna Mahanta, Nilay Bhatt, Bitan Ghosal +1
\textit{PeVatrons} are the extreme galactic accelerators capable of producing PeV particles. Recent observation of Large High Altitude Air Shower Observatory have detected UHE phot…
Broadband Modelling of GRB 230812B Afterglow: Implications for VHE -ray Detection with IACTs
Shraddha Mohnani, Biswajit Banerjee, Davide Miceli +13
A significant fraction of the energy from the -ray burst (GRB) jets, after powering the keV-MeV emission, forms an ultra-relativistic shock propagating into the circumburst medi…
Variability study of classical supergiant X-ray binary 4U 1907+09 using NuSTAR
Raj Kumar, Sayantan Bhattacharya, Sudip Bhattacharyya +1
We investigate the X-ray variability of the supergiant X-ray binary 4U 1907+09 using the new NuSTAR observation of 2024. The source had a relatively stable flux level during previo…
Insights into the Long-term behavior of the optical polarization from the blazar 1ES 1959+650
K K Singh, A Singh, A Tolamatti +2
A high degree of linear polarization measured in the optical emission is an important observational feature of blazars. It provides strong evidence of the presence of relativistic…
Black hole spin estimation of XTE J2012+381 using simultaneous observations of Swift/XRT and NuSTAR
Raj Kumar
A sufficiently precise measurement of black hole spin is required to carry out quantitative tests of the Kerr metric and to understand several phenomena related to astrophysical bl…