302 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Indian Institute of Science Education and Research MohaliIN223 papers
- Indian Institute of Science Education and Research KolkataIN203 papers
- Rutherford Appleton LaboratoryGB194 papers
- Indian Institute of Science Education and Research, TirupatiIN191 papers
- Tata Institute of Fundamental ResearchIN191 papers
- Indian Institute of Science Education and Research BerhampurIN190 papers
- Texas A&M UniversityUS185 papers
- Purdue University West LafayetteUS184 papers
- Panjab UniversityIN183 papers
- Tsinghua UniversityCN183 papers
- Wayne State UniversityUS183 papers
- Eötvös Loránd UniversityHU182 papers
48 papers · 1 filter
Why most neutron star low-mass X-ray binaries accrete transiently: an evolutionary study of transient and persistent phases
Divyansh Tripathi, Sudip Bhattacharyya, Pulkit Ojha
A neutron star (NS) low-mass X-ray binary (LMXB), in which an NS accretes matter from a low-mass donor star, is an ideal source for probing some fundamental aspects of physics and…
Multifrequency evolution of the Integrated pulse profile of radio pulsars by implementing the inverse Compton mechanism
Tridib Roy, Mayuresh Surnis, Mageshwaran Tamilan +2
The Main Aim of this paper is to explain the emergence of new components of pulsars at higher radio bands by implementing the Inverse Compton Scattering Mechanism. From pulsar radi…
Are NICER and GW170817 constraints suggesting a compactified scenario for Neutron stars?
Asim Kumar Saha, Tuhin Malik, Ritam Mallick
Astrophysical observations from NICER and gravitational wave data constrain the properties of matter at the cores of neutron stars, enabling us to probe high-density matter with gr…
The Indian Pulsar Timing Array Data Release 2: II. Customised Single-Pulsar Noise Analysis and Noise Budget
K. Nobleson, Churchil Dwivedi, Shantanu Desai +33
We present the results of customised single-pulsar noise analysis of 27 millisecond pulsars from the second data release of the Indian Pulsar Timing Array (InPTA-DR2). We model var…
A New Framework to Detect Multi-Messenger Signals from Bright Sporadic Stochastic Gravitational Wave Background
Hardik Jitendra Kuralkar, Mohit Raj Sah, Suvodip Mukherjee
The temporal dependence of the astrophysical stochastic gravitational-wave (GW) background (SGWB) in the hecto-hertz band brings a unique avenue to identify multi-messenger signals…
Localisation and host galaxy identification of new Fast Radio Bursts with MeerKAT
Inés Pastor-Marazuela, Alexa C. Gordon, Ben Stappers +18
Accurately localising fast radio bursts (FRBs) is essential for understanding their birth environments and for their use as cosmological probes. Recent advances in radio interferom…
Multi-Model Framework for Reconstructing Gamma-Ray Burst Light Curves
A. Kaushal, A. Manchanda, M. G. Dainotti +13
Mitigating data gaps in Gamma-ray bursts (GRBs) light curves (LCs) is crucial for cosmological research, enhancing the precision of parameters, assuming perfect satellite condition…
Imprints of Non-Symmetric Dark Matter Halos on Magnetars: A Two-Fluid Perspective
Asit karan, Anil Kumar, Monika Sinha +1
In this study, we investigate the impact of dark matter on the structure and deformation of magnetars. We assume a perturbative approach for the magnetic field deformation and that…
Distinct Signatures of the Nature of Phase Transition in Binary Neutron Star Mergers
Sagnik Chatterjee, Shamim Haque, Kamal Krishna Nath +2
Binary neutron-star mergers offer crucial insights into the matter properties of neutron stars. We present the possible imprints in the gravitational wave signal from the nature of…
Insights Into Neutron Stars From Gravitational Redshifts and Universal Relations
Sagnik Chatterjee, Kamal Krishna Nath
The universal relations in neutron stars form an essential entity to understand their properties. The moment of inertia, dimensionless tidal deformability, mass quadrupole moment,…
Analyzing the dense matter equation of states in the light of the compact object HESS J1731-347
Skund Tewari, Sagnik Chatterjee, Deepak Kumar +1
The recent mass () and radius () measurement of HESS J1731-347 made it one of the most fascinating object if it i…
Ensemble noise properties of the European Pulsar Timing Array
Boris Goncharov, Shubhit Sardana
The null hypothesis in Pulsar Timing Array (PTA) analyses includes assumptions about ensemble properties of pulsar time-correlated noise. These properties are encoded in prior prob…
Reading signatures of supermassive binary black holes in pulsar timing array observations
Boris Goncharov, Shubhit Sardana, A. Sesana +10
We find the inferred properties of the putative gravitational wave background in the second data release of the European Pulsar Timing Array to be in better agreement with theoreti…
Modification of the universal relation between mass, radius and nonradial -mode oscillation in proto-neutron stars
Deepak Kumar, Asit Karan, Anshuman Verma +2
Neutron stars are usually assumed to be cold; however, in certain dynamical astrophysical scenarios such as newly born neutron stars or binary star mergers, the temperature effects…
Search for MeV Gamma-ray emission from TeV bright red dwarfs with COMPTEL
Niharika Shrivastava, Siddhant Manna, Shantanu Desai
The SHALON atmospheric Cherenkov telescope has detected very high energy gamma-ray emission at TeV energies from eight red dwarfs, namely, V388 Cas, V547 Cas, V780 Tau, V962 Tau, V…
Deciphering Accretion-Driven Starquakes in Recycled Millisecond Pulsars using Gravitational Waves
Sagnik Chatterjee, Kamal Krishna Nath, Ritam Mallick
Recycled millisecond pulsars are susceptible to starquakes as they are continuously accreting matter from their binary companion. A starquake happens when the rotational frequency…
Low-frequency pulse-jitter measurement with the uGMRT I : PSR J04374715
Tomonosuke Kikunaga, Shinnosuke Hisano, Neelam Dhanda Batra +22
High-precision pulsar timing observations are limited in their accuracy by the jitter noise that appears in the arrival time of pulses. Therefore, it is important to systematically…
The second data release from the European Pulsar Timing Array II. Customised pulsar noise models for spatially correlated gravitational waves
J. Antoniadis, P. Arumugam, S. Arumugam +95
The nanohertz gravitational wave background (GWB) is expected to be an aggregate signal of an ensemble of gravitational waves emitted predominantly by a large population of coalesc…
Discovery of an Extremely Intermittent Periodic Radio Source
M. P. Surnis, K. M. Rajwade, B. W. Stappers +12
We report the serendipitous discovery of an extremely intermittent radio pulsar, PSR J1710-3452, with a relatively long spin period of 10.4 s. The object was discovered through the…
Mahakala: a Python-based Modular Ray-tracing and Radiative Transfer Algorithm for Curved Space-times
Aniket Sharma, Lia Medeiros, Chi-kwan Chan +4
We introduce Mahakala, a Python-based, modular, radiative ray-tracing code for curved space-times. We employ Google's JAX framework for accelerated automatic differentiation, which…
Noise analysis of the Indian Pulsar Timing Array data release I
Aman Srivastava, Shantanu Desai, Neel Kolhe +28
The Indian Pulsar Timing Array (InPTA) collaboration has recently made its first official data release (DR1) for a sample of 14 pulsars using 3.5 years of uGMRT observations. We pr…
Analyzing the speed of sound in neutron star with machine learning
Sagnik Chatterjee, Harsha Sudhakaran, Ritam Mallick
Matter properties at the intermediate densities are still unknown to us. In this work, we use a neural network approach to study matter at intermediate densities to analyze the var…
A sample of Fast Radio Bursts discovered and localised with MeerTRAP at the MeerKAT telescope
F. Jankowski, M. C. Bezuidenhout, M. Caleb +14
We present a sample of well-localised Fast Radio Bursts (FRBs) discovered by the MeerTRAP project at the MeerKAT telescope in South Africa. We discovered the three FRBs in single c…
A sub-arcsec localised fast radio burst with a significant host galaxy dispersion measure contribution
M. Caleb, L. N. Driessen, A. C. Gordon +29
We present the discovery of FRB 20210410D, with the MeerKAT radio interferometer in South Africa, as part of the MeerTRAP commensal project. FRB 20210410D has a dispersion measure…