3 papers
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…