23 April 2009
23 April 2009
Speaker: Mike Garcia and Jay Bookbinder (CfA)
Title:International X-ray Observatory
Abstract:The International X-ray Observatory (IXO) promises to open a new
window on the universe by delivering on the promise of X-ray
spectroscopy. Current observatories are able to obtain
high quality spectra on only the brightest x-ray sources.
For the vast majority of x-ray sources what pass for spectra
are more akin to UBV colors. The IXO will allow routine spectroscopy
at R>1000 for typical sources, and provide a factor of 100 improvement
in effective area for high resolution x-ray spectroscopy.
The science questions that the IXO will address are very broad, and
How do super-massive Black Holes grow and evolve? Does matter orbiting
to a Black Hole event horizon follow the predictions of General
Relativity? What is the Equation of State of matter in Neutron Stars?
How does Cosmic Feedback work and influence galaxy formation? How does
galaxy cluster evolution constrain the nature of Dark Matter and Dark
Energy? Where are the missing baryons in the nearby Universe? When
and how were the elements created and dispersed? How do high energy
processes affect planetary formation and habitability? How do
magnetic fields shape stellar exteriors and the surrounding
environment? How are particles accelerated to extreme energies
producing shocks, jets, and cosmic rays?
The IXO is ready to compliment the suite of new large ground and
space based observatories coming in the next decade. This colloquium
will discuss both the science
and the implementation of the IXO.
Video of the Presentation
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