activity
20092025
most citedNonlinear Time Series Analysis of Sunspot Data

39 citations · 43 across the 5 of their papers we have counts for

collaborators

5 papers

astro-ph.SR2025

Unveiling the Variability and Chemical Composition of AL Col

Surath C. Ghosh, Santosh Joshi, Samrat Ghosh +9

Using \tess\ short-cadence (120\,s) SAP flux, we identified a rotational frequency of 0.09655\, (\,d). Wavelet analysis reveals that while…

astro-ph.SR2025★ 2 cited

Extraction of Physical Parameters of RRab Variables using Neural Network based Interpolator

Nitesh Kumar, Harinder P. Singh, Oleg Malkov +4

Determining the physical parameters of pulsating variable stars such as RR Lyrae is essential for understanding their internal structure, pulsation mechanisms, and evolutionary sta…

astro-ph.SR2025★ 2 cited

Physical Parameters of Stars in NGC 6397 Using ANN-Based Interpolation and Full Spectrum Fitting

Nitesh Kumar, Philippe Prugniel, Harinder P. Singh

Stellar spectral interpolation is critical technique employed by fitting software to derive the physical parameters of stars. This approach is necessary because on-the-go generatio…

astro-ph.SR2024

Colour-Based Disentangling of Mira Variables and Ultra-Cool Dwarfs

Aleksandra Avdeeva, Kefeng Tan, Santosh Joshi +4

Despite having different astronomical characteristics, the studies of mira variables and ultra-cool dwarfs frequently show similar red colors, which could cause leading to photomet…

astro-ph.SR2009★ 39 cited

Nonlinear Time Series Analysis of Sunspot Data

Vinita Suyal, Awadhesh Prasad, Harinder P. Singh

This paper deals with the analysis of sunspot number time series using the Hurst exponent. We use the rescaled range (R/S) analysis to estimate the Hurst exponent for 259-year and…