Who We Are
Click here to meet our group.
The Milky Way Halo Research Group at STScI
Our research group studies the gaseous halo of the Milky Way to better understand the Galactic ecosystem. We focus on multi-wavelength spectroscopy at UV, optical, IR, and radio wavelengths to measure the flows of baryons between the Galactic disk and halo. These flows play a key role in regulating the rate of star formation and provide a close-up case study of the baryon cycle around a star-forming galaxy. We are part of the Low Density Universe community at STScI. We welcome new collaborators at all career stages. Several of our projects are described below.
Fermi Bubbles
We study the Galactic nuclear outflow and the Fermi Bubbles.
Magellanic Stream
We use spectrocopy to study this enormous tidal feature stripped off the Magellanic Clouds and heading toward the Galaxy. Click here to learn more.
Halo Hydrogen
We use H I absorption to probe diffuse gas in the Galactic halo.
Smith Cloud
The Smith Cloud is an example of late-stage Galactic accretion. We have been measuring its chemical composition.
Radiation Field
We have helped develop models of the Galactic ionizing radiation field, used for photoionization models of halo clouds.