6 papers
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.…
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…
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…
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…
$\mbox{H}$ $\mbox{I}$ 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…
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 …