Models of the Intergalactic Gas in Stephan's Quintet
Jeong-Sun Hwang (Iowa State), Curtis Struck (Iowa State), Florent, Renaud (Strasbourg, Vienna), Philip N. Appleton (NHSC)
TL;DR
This paper employs smoothed particle hydrodynamics models to analyze the large-scale structure and evolution of intergalactic gas in Stephan's Quintet, aligning simulations with multiwavelength observations to understand shock formation and tidal features.
Contribution
It introduces SPH modeling of intergalactic gas dynamics in Stephan's Quintet, including hot gas formation, shocks, and tidal structures, validated against observational data.
Findings
Successful reproduction of hot X-ray gas and shock features
Alignment of models with observed tidal structures
Insights into gas dynamics during galaxy interactions
Abstract
We use smoothed particle hydrodynamics (SPH) models to study the large-scale morphology and dynamical evolution of the intergalactic gas in Stephan's Quintet, and compare to multiwavelength observations. Specifically, we model the formation of the hot X-ray gas, the large-scale shock, and emission line gas as the result of NGC 7318b colliding with the group. We also reproduce the N-body model of Renaud and Appleton for the tidal structures in the group.
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Taxonomy
TopicsAstrophysics and Star Formation Studies · Galaxies: Formation, Evolution, Phenomena · Leaf Properties and Growth Measurement