The warm-hot gaseous halo of the Milky Way
  The circumgalactic region of the Milky Way contains a large amount of gaseous
mass in the warm-hot phase. The presence of this warm-hot halo observed through
$z=0$ X-ray absorption lines is generally agreed upon, but its density,
path-length, and mass is a matter of debate. Here I discuss in detail why
different investigations led to different results. The presence of an extended
(over 100 kpc) and massive (over ten billion solar masses) warm-hot gaseous
halo is supported by observations of other galaxies as well. I briefly discuss
the assumption of constant density and end with outlining future prospects.
