학술논문
Investigating the Effect of Galaxy Interactions on Star Formation at 0.5
Astrophysics - Astrophysics of Galaxies
Document Type
Working Paper
Author
Shah, Ekta A.; Kartaltepe, Jeyhan S.; Magagnoli, Christina T.; Cox, Isabella G.; Wetherell, Caleb T.; Vanderhoof, Brittany N.; Cooke, Kevin C.; Calabro, Antonello; Chartab, Nima; Conselice, Christopher J.; Croton, Darren J.; de la Vega, Alexander; Hathi, Nimish P.; Ilbert, Olivier; Inami, Hanae; Kocevski, Dale D.; Koekemoer, Anton M.; Lemaux, Brian C.; Lubin, Lori; Mantha, Kameswara Bharadwaj; Marchesi, Stefano; Martig, Marie; Moreno, Jorge; Pampliega, Belen Alcalde; Patton, David R.; Salvato, Mara; Treister, Ezequiel
Source
Subject
Language
Abstract
Observations and simulations of interacting galaxies and mergers in the local universe have shown that interactions can significantly enhance the star formation rates (SFR) and fueling of Active Galactic Nuclei (AGN). However, at higher redshift, some simulations suggest that the level of star formation enhancement induced by interactions is lower due to the higher gas fractions and already increased SFRs in these galaxies. To test this, we measure the SFR enhancement in a total of 2351 (1327) massive ($M_*>10^{10}M_\odot$) major ($1