A Catalog of Edge-on Disk Galaxies: From Galaxies with a Bulge to Superthin Galaxies
S. J. Kautsch, E. K. Grebel, F. D. Barazza, J. S. Gallagher

TL;DR
This study compiles a large, uniform catalog of edge-on disk galaxies from SDSS data, revealing the prevalence of bulgeless and flat galaxies and providing insights into their distribution and characteristics.
Contribution
It presents a new, extensive catalog of edge-on disk galaxies classified into detailed morphological types, including a significant number of bulgeless and flat galaxies, improving upon previous optical catalogs.
Findings
Approximately 15% of the catalog are flat galaxies.
Bulgeless disks constitute about one third of the sample.
The catalog contains nearly four times more bulgeless galaxies than previous surveys.
Abstract
The formation and evolution of disk-dominated galaxies is difficult to explain, yet these objects exist. We therefore embarked on a study aimed at a better understanding of these enigmatic objects. We used data from the SDSS DR1 in order to identify edge-on galaxies with disks in a uniform, reproducible, automated fashion. We identified 3169 edge-on disk galaxies, which we subdivided into disk galaxies with bulge, intermediate types, and simple disk galaxies without any obvious bulge component. We subdivided these types further into subclasses: Sa(f), Sb(f), Sc(f), Scd(f), Sd(f), Irr(f), where the (f) indicates that these galaxies are seen edge-on. A number of incompleteness effects affect our catalog, but it contains almost a factor of four more bulgeless galaxies with prominent simple disks (flat galaxies) within the area covered here than previous optical catalogs, which were based…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsGalaxies: Formation, Evolution, Phenomena · Astrophysics and Star Formation Studies · Stellar, planetary, and galactic studies
