4 citations · 17 across the 16 of their papers we have counts for
18 papers
Search for high-energy neutrinos from Einstein Probe detected Fast X-ray Transients using 14 years of IceCube muon track data
Sri Devaki Meduri, Shantanu Desai
We perform a time-integrated search for high energy neutrinos from 27 fast X-ray transients (FXTs) detected by Einstein Probe, using 14 years of publicly available IceCube muon-tra…
A comprehensive assessment of weak-lensing inferred circular velocity profiles of isolated galaxies
Sri Devaki Meduri, Shantanu Desai
We fit the circular velocity data, derived from weak lensing observations of isolated galaxies selected from the KiDS survey in four baryonic mass bins, using three different dark…
Determination of neutron star radius from pulse profile modeling using profile likelihood
Vyaas Ramakrishnan, Shantanu Desai
In recent years, NICER data have been extensively used to determine neutron star masses and radii using pulse profile modeling. Pulse profile modeling is implemented with the {\tt…
Limit on high energy neutrino emission from Abell 119 using IceCube 10-year muon track data
Sri Devaki Meduri, Shantanu Desai
We carry out a search for high energy muon neutrino emission from the galaxy cluster Abell 119, motivated by a recent tentative detection of GeV gamma-ray emission from this cluste…
Probing cosmic anisotropy with galaxy clusters and supernovae
Shubham Barua, Sujit K. Dalui, Shantanu Desai
Using CDM and Padé-(2,1) cosmography, we study directional variations in the Hubble constant, , using galaxy cluster and Type Ia Supernovae (from Pantheon Plus) by the hemi…
Bayesian Model Comparison of versus CDM using HII galaxy Hubble diagram
Yuva Himanshu Pallam, Shantanu Desai
We complement a recent analysis comparing with CDM/CDM using HII galaxies and giant extragalactic HII regions, by carrying out Bayesian model comparison. Fo…
Search for Gamma-ray emission from Abell 119 galaxy cluster using INTEGRAL/ISGRI, COMPTEL, and DAMPE data
Siddhant Manna, Shantanu Desai
We present a comprehensive search for non-thermal high-energy -ray emission from the nearby merging galaxy cluster Abell~119 () using archival observations spanning ove…
Comparison of symbolic regression algorithms in Star/galaxy/quasar separation
Rachit Deshpande, Shantanu Desai
This work investigates symbolic regression (SR) as an interpretable alternative to black-box machine learning for the classification of stars, galaxies, and quasars in the Sloan Di…
A test of Amati relation using HII galaxy distances
Rikiya Okazaki, Shantanu Desai
We use model-independent luminosity distances of 186 HII galaxy observations to address the circularity problem in the Amati relation for Gamma-ray Bursts (GRBs). For this purpose,…
A test of invariance of halo surface density for FIRE-2 simulations with cold dark matter and self-interacting dark matter
Sujit K. Dalui, Shantanu Desai
Numerous observations have shown that the dark matter halo surface density, defined as the product of core radius and halo central density of cored dark matter haloes is nearly con…
Testing the cosmic distance duality relation using model-independent approach
Shubham Barua, Sujit K. Dalui, Rikiya Okazaki +1
In this work, we test the cosmic distance duality relation (CDDR) using the arbitrary redshift pivot Padé-(2,1) expansion methodology developed in arXiv:2509.16196. This approach a…
Cosmological Constraints on Neutrino Masses in a Second-Order CPL Dark Energy Model
Shubham Barua, Shantanu Desai
Recent DESI results indicate a strong preference for dynamical dark energy (DE) when baryon acoustic oscillation (BAO) measurements are combined with supernovae (SNe) and cosmic mi…
On frequentist confidence intervals in a non-Gaussian regime
Shubham Barua, Shantanu Desai, Mauricio Lopez-Hernandez +1
We study frequentist confidence intervals based on graphical profile likelihoods (Wilks' theorem, likelihood integration), and the Feldman-Cousins (FC) prescription, a generalisati…
Search for Lorentz Invariance Violation with spectral lags of GRB 190114C using profile likelihood
Vyaas Ramakrishnan, Shantanu Desai
We search for Lorentz invariance violation (LIV) by re-analyzing the spectral lag data for GRB 190114C from Fermi-GBM using frequentist analysis, where we deal with the astrophysic…
Determination of Hubble constant from Megamaser Cosmology Project using Profile Likelihood
Shubham Barua, Vyaas Ramakrishnan, Shantanu Desai
The Megamaser Cosmology Project inferred a value for the Hubble constant given by km/sec/Mpc. This value was obtained using Bayesian inference by marginalizing…
Constraints on Lorentz Invariance Violation from Gamma-ray Burst rest-frame spectral lags using Profile Likelihood
Vyaas Ramakrishnan, Shantanu Desai
We reanalyze the spectral lag data for 56 Gamma-Ray Bursts (GRBs) in the cosmological rest frame to search for Lorentz Invariance Violation (LIV) using frequentist inference. For t…
Effect of Peak Absolute Magnitude of Type Ia Supernovae and Sound Horizon Values on Hubble Tension using DESI results
Shubham Barua, Shantanu Desai
We apply data-motivated priors on the peak absolute magnitude of Type Ia supernovae () and the sound horizon at the drag epoch (), to study how the degeneracy affec…
Constraint on Lorentz Invariance Violation for spectral lag transition in GRB 160625B using profile likelihood
Shantanu Desai, Shalini Ganguly
We reanalyze the spectral lag data for GRB 160625B using frequentist inference in order to constrain the energy scale () of Lorentz Invariance Violation (LIV). For this pur…