Isolated Galaxies versus Interacting Pairs with MaNGA
AbstractWe present preliminary results of the spectral analysis on the radial distributions of the star formation history in both a galaxy merger and a spiral isolated galaxy observed with MaNGA. We find that the central part of the isolated galaxy is composed by older stellar population (~2 Gyr) than in the outskirts (~7 Gyr). Also, the time-scale is gradually larger from 1 Gyr in the inner part to 3 Gyr in the outer regions of the galaxy. In the case of the merger, the stellar population in the central region is older than in the tails, presenting a longer time-scale in comparison to central part in the isolated galaxy. Our results are in agreement with a scenario where spiral galaxies are built from inside-out. In the case of the merger, we find evidence that interactions enhance star formation in the central part of the galaxy. View Full-Text
Share & Cite This Article
Fernández, M.D.C.A.; Yuan, F.; Shen, S.; Yin, J.; Chang, R.; Feng, S. Isolated Galaxies versus Interacting Pairs with MaNGA. Galaxies 2015, 3, 156-163.
Fernández MDCA, Yuan F, Shen S, Yin J, Chang R, Feng S. Isolated Galaxies versus Interacting Pairs with MaNGA. Galaxies. 2015; 3(4):156-163.Chicago/Turabian Style
Fernández, María D.C.A.; Yuan, Fangting; Shen, Shiyin; Yin, Jun; Chang, Ruixiang; Feng, Shuai. 2015. "Isolated Galaxies versus Interacting Pairs with MaNGA." Galaxies 3, no. 4: 156-163.