The Edge-on Galaxy Database

The DESI Legacy Surveys covers 20,000 square degrees of extragalactic sky combining MzLS, DECaLS and BASS surveys and public DECam data in g, r, i, z bands. The goal of the project is to create a robust sample of edge-on galaxies covering the entire sky outside the Zone of Avoidance in the Milky Way. The edge-on galaxies are selected using an artificial neural network trained on the sample of the edge-on galaxies from the second version of the Edge-on Galaxies In the Pan-STARRS1 survey (EGIPS) and the Revised Flat Galaxy Catalogue (RFGC).

The catalog contains 2D-decomposition of PS1 dr1 galaxies using Imfit (version 2).

The catalog contains 2D-decomposition of PS1 dr1 galaxies using Imfit.

In the second release of the edge-on galaxies in the Pan-STARRS1 survey, the selection and classification of objects have been improved. We used the same ideology as in the first version of the EGIPS catalog. The artificial neural network was trained using a sample of the "best" edge-on galaxies from the EGIPS catalog. The new version is expanded to the low surface brightness galaxies.

Catalogs and samples of galaxies with well-defined selection criteria that have high-precision observational data on morphology, photometry, structural parameters of galaxies, redshifts, and internal kinematics are extremely important for comparison the modern cosmological models to the real observations. The goal of this project is creation of the catalog of galaxies visible nearly edge-on to the line of sight. We plan to dramatically increase the known number of edge-on galaxies due to a better sky coverage by the Pan-STARRS survey.

We performed Bulge-Disk decomposition for 160 ultrathin galaxies using the DECA package with GalFit software. The sample is selected from the Revised Flat Galaxy Catalog for objects with axes ratio a/b>10 in blue band. For decomposition we used images of the galaxies in all 5 bands (grizy) of the Pan-STARRS1 DR2 survey.