We have analyzed FUSE , XMM-Newton , and Chandra observations of VV 114 , a local galaxy merger with strong similarities to typical high-redshift Lyman Break Galaxies ( LBGs ) .
Diffuse thermal X-ray emission encompassing VV 114 has been observed by Chandra and XMM-Newton .
This region of hot ( kT \sim 0.59 ~ { } keV ) gas has an enhanced \alpha / Fe element ratio relative to solar abundances and follows the same relations as typical starbursts between its properties ( luminosity , size , and temperature ) and those of the starburst galaxy ( star formation rate , dust temperature , galaxy mass ) .
These results are consistent with the X-ray gas having been produced by shocks driven by a galactic superwind .
The FUSE observations of VV 114 show strong , broad interstellar absorption lines with a pronounced blueshifted component ( similar to what is seen in LBGs ) .
This implies an outflow of material moving at \sim 300 - 400 ~ { } km / s relative to VV 114 .
The properties of the strong O vi absorption line are consistent with radiative cooling at the interface between the hot outrushing gas seen in X-rays and the cooler material seen in the other outflowing ions in the FUSE data .
We show that the wind in VV 114 has not created a “ tunnel ” that enables more than a small fraction ( < few percent ) of the ionizing photons from VV 114 to escape into the IGM .
Taken together , these data provide a more complete physical basis for understanding the outflows that seem to be generic in LBGs .
This will lead to improved insight into the role that such outflows play in the evolution of galaxies and the inter-galactic medium .