Research in Don York's group focuses on diffuse material in our Universe.
Included in the focus are the origins of intergalactic material, the origin of elements
in high-redshift galaxies and interstellar material in the disk and
halo of the Large Magellanic Cloud and the Small Magellanic Cloud (the two
closest star-forming galaxies).
Progress in all these fields is closely tied
to progress in understanding interstellar gas and dust in our own Milky Way galaxy.
We are especially involved in determining the
physical properties of Galactic diffuse interstellar clouds, the abundances
and origins of the elements, the identification of non-terrestrial
molecules in diffuse interstellar clouds,
the Galactic environment of the Sun and the boundary conditions
of the heliosphere.
In its journey through space, the Sun actually
interacts with interstellar clouds. An important focus is understanding the physical
properties of nearby interstellar clouds, which is critical to
understanding the history of the solar journey through space.
These research projects require the use of Hubble Space Telescope,
large and small ground based telescopes, and, suprisingly, spacecraft
in situ meaurements
of interstellar matter in the solar system with data from a range of space craft.
Follow the links below to get a glimpse of the research
of the York group.