53 citations · 66 across the 11 of their papers we have counts for
12 papers
Electronic Density versus Geometry for Machine-Learned Molecular Absorption Spectra
Siddharth Dhanpal, Peter Elliott, Paolo Emilio Trevisanutto +2
Molecular optical absorption spectroscopy provides a direct probe of electronic structure and is widely used for molecular identification, interpretation of photophysical behaviour…
Physics-Informed Graph-Neural Decoding of the Surface Code: the Logical Signal as an Exact Topological Pairing
P. E. Trevisanutto, S. Dhanpal, S. Basak +2
We develop a physics-informed graph neural network (GNN) decoder for the surface code that solves a discrete Poisson equation on the syndrome graph, with the syndrome as the charge…
Period spacings and global seismic parameters for K2 red giants using deep learning
Nipun Ghanghas, Siddharth Dhanpal, Shravan Hanasoge +2
Gravity-mode period spacings (DPi_1) of red giants probe the stellar core directly, constraining its structure, mass and evolutionary state. Their measurement requires resolving na…
Potential of Gaia XP Spectra in Red Giant Star Asteroseismology: A Deep-Learning Approach
Rajarshi Barman, Shatanik Bhattacharya, Shravan M. Hanasoge +1
Red giants are tracers of stellar evolution & Galactic structure & their asteroseismic properties, particularly large frequency separation, frequency of maximum oscillation power &…
Anomalously fast core and envelope rotation in red giants
Siddharth Dhanpal, Othman Benomar, Shravan Hanasoge +1
Red giants undergo dramatic and complex structural transformations as they evolve. Angular momentum is transported between the core and envelope during this epoch, a poorly underst…
Seismic constraints on the spin evolution of slowly rotating young intermediate-mass stars
K. H. Singh, S. K. Panda, S. M. Hanasoge +1
Scuti stars are hot, rapid rotators and are a poorly understood class of pulsators. Asteroseismology provides the only means with which to probe their interior dynamics. Howeve…
Quadratic frequency dispersion in the oscillations of intermediate-mass stars
Subrata Kumar Panda, Shravan Hanasoge, Siddharth Dhanpal +1
Asteroseismology, the study of stellar vibration, has met with great success, shedding light on stellar interior structure, rotation, and magnetism. Prominently known as Scutis…
Magnetic flux in the Sun emerges unaffected by supergranular-scale surface flows
Prasad Mani, Chris S. Hanson, Siddarth Dhanpal +3
Magnetic flux emergence from the convection zone into the photosphere and beyond is a critical component of the behaviour of large-scale solar magnetism. Flux rarely emerges amid f…
Asteroseismology applied to constrain structure parameters of δ Scuti stars
Subrata Kumar Panda, Siddharth Dhanpal, Simon J. Murphy +2
Asteroseismology is a powerful tool to probe the structure of stars. Space-borne instruments like CoRoT, Kepler and TESS have observed the oscillations of numerous stars, among whi…
Inferring coupling strengths of mixed-mode oscillations in red-giant stars using deep learning
Siddharth Dhanpal, Othman Benomar, Shravan Hanasoge +3
Asteroseismology is a powerful tool that may be applied to shed light on stellar interiors and stellar evolution. Mixed modes, behaving as acoustic waves in the envelope and buoyan…
Measuring frequency and period separations in red-giant stars using machine learning
Siddharth Dhanpal, Othman Benomar, Shravan Hanasoge +4
Asteroseismology is used to infer the interior physics of stars. The \textit{Kepler} and TESS space missions have provided a vast data set of red-giant light curves, which may be u…
A "no-hair" test for binary black holes
Siddharth Dhanpal, Abhirup Ghosh, Ajit Kumar Mehta +2
One of the consequences of the black-hole "no-hair" theorem in general relativity (GR) is that gravitational radiation (quasi-normal modes) from a perturbed Kerr black hole is uniq…