7–11 Jul 2025
Teaching and Learning Centre (TLC)
Europe/London timezone

Automated Bar and Spiral Arm Segmentation using Deep Learning

10 Jul 2025, 16:15
15m
Teaching and Learning Centre (TLC)

Teaching and Learning Centre (TLC)

Durham University South Road Durham DH1 3LS
Talk Barred Galaxies: Unraveling Their Evolution, Dynamics, and Cosmic Role Barred Galaxies: Unravelling Their Evolution, Dynamics and Cosmic Role

Speaker

Ashley Spindler (University of Hertfordshire)

Description

Identifying the extent of internal galaxy structures can be incredibly helpful in unravelling their evolutionary histories. For bars in particular this can allow for precise measurements of colour, stellar mass, bar length and alignment with the disk. We present ZooBot:3D, a deep learning model trained using the volunteer classifications from the Galaxy Zoo: 3D project, capable of generating highly detailed segmentation maps of disk galaxies. We employ this model to produce maps for ~500,000 galaxies in the DESI Legacy Survey and demonstrate how these masks can be used to study the intricate properties of barred and unbarred spirals. Finally, we will detail the forthcoming public data release of these segmentation products and lay out plans for future work in this area.

Primary author

Ashley Spindler (University of Hertfordshire)

Co-author

Mike Walmsley (University of Toronto)

Presentation materials

There are no materials yet.