Measuring the True Velocity of Superwinds with IXO

Details Measuring the True Velocity of Superwinds with IXO Measuring the True Velocity of Superwinds with IXO

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21345407h&link_type=abstract

American Astronomical Society, AAS Meeting #213, #454.07; Bulletin of the American Astronomical Society, Vol. 41, p.351

Astronomy and Astrophysics

Astronomy

Scientific paper

The International X-ray Observatory (IXO) will revolutionize our understanding of starburst-driven winds and the role of stellar and Supernova feedback in galaxy formation and evolution. The majority of the energy and the metals in galactic winds resides in hot X-ray-emitting gas that is kinematically decoupled from the slower cooler gas studied with optical/UV spectroscopy. Thus only X-ray observations can constrain whether metals are ejected from galaxies. We demonstrate how the high spectral resolution (delta-E 2.5 eV) and high through-put of the X-ray Microcalorimeter Spectrometer will allow the true velocity of the hot gas in superwinds to be measured for the first time.

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