activity
20222026
most citedIdentification of Grand-design and Flocculent Spirals from SDSS using Convolutional Neural network

11 citations · 11 across the 7 of their papers we have counts for

collaborators

7 papers

astro-ph.GA2026

Co-evolution of bar and spiral arms in TNG50 simulations using Information Theory

Anagha A G, Arunima Banerjee

Using Information Theory, we investigate the co-evolution of bars and spiral arms in barred-spiral galaxies from the cosmological magneto-hydrodynamic Illustris TNG50 simulations.…

astro-ph.GA2026

Identifying Warped Galaxies in Pan-STARRS and Euclid using Deep Convolutional Neural Network

Saranya Suguna, Arunima Banerjee

Warped galactic discs are common, yet their detection remains challenging, as the outskirts of galaxies are typically faint. Advances in deep imaging surveys improve the detectabil…

astro-ph.GA2025

$\mbox{H}$ $\mbox{I}$ 21-cm Absorption Spectra Classification using Machine Learning

Debasish Mondal, Anirudh S. Nemmani, Arunima Banerjee

$\mbox{H}$ $\mbox{I}$ 21-cm absorption, an extremely useful tool to study the cold atomic hydrogen gas, can arise either from the intervening galaxies along the line-of-sight towar…

astro-ph.GA2025

Can fractal dimension distinguish between grand-design and flocculent spiral arms?

Biju Saha, Subhadip Dutta, Arunima Banerjee

About two-thirds of disk galaxies host spiral arms, ranging from well-delineated grand-design spirals to fragmented flocculent spiral galaxies. We introduce fractal dimension …

astro-ph.GA2025

The dynamical lineage of ultra-diffuse galaxies from TNG50-1

Nilanjana Nandi, Arunima Banerjee

The formation and evolution of the ultra-diffuse galaxies (UDGs) continues to remain a puzzle. Similarities and differences in the morphological and the kinematical properties of t…

astro-ph.GA2025

Identifying lopsidedness in spiral galaxies using a Deep Convolutional Neural Network

Biju Saha, Suman Sarkar, Arunima Banerjee

About 30\% of disk galaxies show lopsidedness in their stellar disk. Although such a large-scale asymmetry in the disk can be primarily looked upon as a long-lived mode (), th…

astro-ph.GA2022★ 11 cited

Identification of Grand-design and Flocculent Spirals from SDSS using Convolutional Neural network

Suman Sarkar, Ganesh Narayanan, Arunima Banerjee +1

Spiral galaxies can be classified into the {\it Grand-designs} and {\it Flocculents} based on the nature of their spiral arms. The {\it Grand-designs} exhibit almost continuous and…