Powerful High-Velocity Dispersion Molecular Hydrogen Associated with an Intergalactic Shock Wave in Stephan's Quintet

Appleton, P N; Xu, Kevin C; Reach, William; Dopita, Michael; Gao, Y; Lu, N; Popescu, Cristina C; Sulentic, J W; Tuffs, Richard J; Yun, M S

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Powerful High-Velocity Dispersion Molecular Hydrogen Associated with an Intergalactic Shock Wave in Stephan's Quintet

Date

2006

Authors

Appleton, P N

Xu, Kevin C

Reach, William

Dopita, Michael

Gao, Y

Lu, N

Popescu, Cristina C

Sulentic, J W

Tuffs, Richard J

Yun, M S

Publisher

IOP Publishing

Abstract

We present the discovery of strong mid-infrared emission lines of molecular hydrogen of apparently high-velocity dispersion (∼870 km s -1) originating from a group-wide shock wave in Stephan's Quintet. These Spitzer Space Telescope observations reveal e