Open AccessE+A Galaxies in and Around Nearby Rich Clusters of Galaxies
Author(s) -
Julia Falcone,
S. Wurmser,
N. Kerrison,
S. Greenfield,
Maya Joyce,
Allen G. Liu,
Mariarosa Marinelli,
W. Ostling,
R. Quayum,
Rosemary H. Williams,
Charles Liu
Publication year - 2021
Publication title -
research notes of the aas
Language(s) - English
Resource type - Journals
ISSN - 2515-5172
DOI - 10.3847/2515-5172/abf1f6
Subject(s) - physics , astrophysics , galaxy , virgo cluster , sky , galaxy cluster , coma cluster , cluster (spacecraft) , astronomy , population , star formation , computer science , sociology , demography , programming language
We have spectroscopically identified 600 new E+A galaxies and candidates across 16 fields totaling roughly 480 square degrees in the Sloan Digital Sky Survey. E+A galaxies are post-starburst systems that have undergone a significant burst of star formation within the past 1–2 Gyr and are now fully quenched. They comprise a small population that is key to understanding the transition from star-forming to quiescent galaxies. Our survey focused on four nearby rich clusters of galaxies and their surroundings: Virgo, Coma, Leo, and Hercules. 356 candidates were identified in the clusters, and an additional 244 were identified in control fields or otherwise outside cluster bounds. Understanding the distribution and dynamics of the E+As has the potential to shed light on the evolutionary mechanisms present within nearby cluster environments. In this note, we give a brief overview of our selection processes and locations, and report on ongoing analyses of the sample.