Publications (16)
Existence of primitive normal pairs over finite fields with prescribed subtrace
K. Chatterjee, G. Kapetanakis, H. Sharma +1
Given positive integers and , where is an odd prime power and , we investigate the existence of a primitive normal pair in $\m…
Magnetic flux plays an important role during a BHXRB outburst in radiative 2T GRMHD simulations
M. T. P. Liska, N. Kaaz, K. Chatterjee +2
Black hole (BH) X-ray binaries cycle through different spectral states of accretion over the course of months to years. Although fluctuations in the BH mass accretion rate are gene…
An extremely soft and weak fast X-ray transient associated with a luminous supernova
W. -X. Li, Z. -P. Zhu, X. -Z. Zou +101
Long gamma-ray bursts (LGRBs), including their subclasses of low-luminosity GRBs (LL-GRBs) and X-ray flashes (XRFs) characterized by low spectral peak energies, are known to be ass…
-primitive -normal polynomials over finite fields with last two coefficients prescribed
K. Chatterjee, R. K. Sharma, S. K. Tiwari
Let be an -primitive -normal element over , where is a prime power and is a positive integer. The minimal polynomial of is…
A Swift study of long-term changes in the X-ray flaring properties of Sagittarius A*
A. Andrés, J. van den Eijnden, N. Degenaar +12
The radiative counterpart of the supermassive black hole at the Galactic Centre, Sagittarius A*, displays flaring emission in the X-ray band atop a steady, quiescent level. Flares…
AstroSat Observation of Non-Resonant Type-C QPOs in MAXI J1535-571
D. Chatterjee, D. Debnath, A. Jana +8
Galactic transient black hole candidate (BHC) MAXI J1535-571 was discovered on 2017 September 02 simultaneously by {\it MAXI}/GSC and {\it Swift}/BAT instruments. It has also been…
A primitive normal pair with prescribed prenorm
K. Chatterjee, S. K. Tiwari
For any positive integers , , with being a prime power and , we establish a condition sufficient to ensure the existence of a primitive normal pair $(ε,f(΅
Broadband Multi-wavelength Properties of M87 during the 2018 EHT Campaign including a Very High Energy Flaring Episode
J. C. Algaba, M. Balokovic, S. Chandra +738
The nearby elliptical galaxy M87 contains one of the only two supermassive black holes whose emission surrounding the event horizon has been imaged by the Event Horizon Telescope (…
H-AMR: A New GPU-accelerated GRMHD Code for Exascale Computing With 3D Adaptive Mesh Refinement and Local Adaptive Time-stepping
M. T. P. Liska, K. Chatterjee, D. Issa +10
General-relativistic magnetohydrodynamic (GRMHD) simulations have revolutionized our understanding of black hole accretion. Here, we present a graphics processing unit (GPU) accele…
On the Internal Structure of Relativistic Jets with Zero Velocity Along the Axis
V. S. Beskin, F. A. Kniazev, K. Chatterjee
The present work is devoted to the analysis of the internal structure of relativistic jets under the condition that the velocity of the plasma flow at the jet axis vanishes. It is…
The role of behavioural plasticity in finite vs infinite populations
M. Kleshnina, K. Kaveh, K. Chatterjee
Evolutionary game theory has proven to be an elegant framework providing many fruitful insights in population dynamics and human behaviour. Here, we focus on the aspect of behaviou…
SN 2025aico: Early observations of a faint Type IIb supernova with a low-mass envelope
J. -W. Zhao, A. Pastorello, B. Kumar +45
We aimed to investigate the physical properties and the underlying explosion mechanisms of the Type IIb SN 2025aico. Through a comprehensive analysis of early-phase optical light c…
Searching for X-ray sources in nearby late-type galaxies with low star formation rates
K. Chatterjee, P. Kaaret, M. Brorby +4
Late type non-starburst galaxies have been shown to contain X-ray emitting objects, some being ultraluminous X-ray sources. We report on XMM-Newton observations of 11 nearby, late-…
Ordered magnetic fields around the 3C 84 central black hole
G. F. Paraschos, J. -Y. Kim, M. Wielgus +279
3C84 is a nearby radio source with a complex total intensity structure, showing linear polarisation and spectral patterns. A detailed investigation of the central engine region nec…
Observation of the rare decay from the combined analysis of CMS and LHCb data
The CMS, LHCb Collaborations, : +2807
A joint measurement is presented of the branching fractions and in proton-proton collisions at the LHC by the CMS and LHCb experiments. The data…
SYMBA: An end-to-end VLBI synthetic data generation pipeline
F. Roelofs, M. Janssen, I. Natarajan +203
Realistic synthetic observations of theoretical source models are essential for our understanding of real observational data. In using synthetic data, one can verify the extent to…