Star Formation in Mergers and Interacting Galaxies: Gathering the Fuel

Abstract

Selected results from recent studies of star formation in galaxies at different stages of interaction are reviewed. Recent results from the Spitzer Space Telescope are highlighted. Ideas on how large-scale driving of star formation in interacting galaxies might mesh with our understanding of star formation in isolated galaxies and small scale mechanisms within galaxies are considered. In particular, there is evidence that on small scales star formation is determined by the same thermal and turbulent processes in cool compressed clouds as in isolated galaxies. If so, this affirms the notion that the primary role of large-scale dynamics is to gather and compress the gas fuel. In gas-rich interactions this is generally done with increasing efficiency through the merger process.

6 pgs., 2 figs., proceedings of IAU Symp. 237, Triggered Star Formation in a Turbulent ISM, eds. B. G. Elmegreen & J. Palous

References in corpus (5)

• Star Formation in Close Pairs Selected from the Sloan Digital Sky Survey
• Powerful High Velocity-Dispersion Molecular Hydrogen Associated with an Intergalactic Shock Wave in Stephan's Quintet
• IRAC and MIPS Observations of the Interacting Galaxies IC 2163 and NGC 2207: Clumpy Emission
• Dynamical Masses in Luminous Infrared Galaxies
• Numerical simulations on the relative importance of starbursts and AGN in ultra-luminous infrared galaxies

Cited by in corpus (1)

• A Machine Learning Approach to Integral Field Unit Spectroscopy Observations: III. Disentangling Multiple Components in Hii regions