Advanced morphology of VIPERS galaxies
Olexandr Gugnin, Anatolii Tugay, Nadiia Pulatova, Lidiia Zadorozhna

TL;DR
This study analyzes morphological parameters of over 70,000 VIPERS galaxies to distinguish elliptical and spiral types, examining their correlation with Sersic index, errors, and evolutionary trends.
Contribution
It provides a comprehensive analysis of galaxy morphology in VIPERS, including error estimation, parameter dependence on galaxy separation, and insights into galaxy evolution over cosmic time.
Findings
Elliptical galaxies are more prevalent in the modern universe.
Galaxy mergers were more common in the early universe.
Morphological parameters correlate with galaxy type and evolution.
Abstract
We calculated morphological parameters for 70821 galaxies from VIPERS (spectroscopic galaxy survey performed on VIMOS spectroscope at VLT). These parameters includes Gini, M20, Concentration, Asymmetry and Smoothness. Results correlate with the distribution of these parameters for other simulated and observed samples. We also studied dependence of these parameters with Sersic power index of radial distribution of surface brightness of galaxy image. Our aim was to find a clear separation of VIPERS galaxies on elliptical and spiral. This is necessary for testing the method of Sersic index (ns) calculation in statmorph program. To find such bimodality we use B-V color index from VIPERS database. To perform the error analysis of morphological parameters we simulated galaxy images with random background of different magnitude and estimated the errors as dispersion of the parameters. We…
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
TopicsAstronomy and Astrophysical Research · Remote Sensing in Agriculture
