Tracing the baryon cycle at low redshift
I am investigating outflows and infall of gas in
circumgalactic environments as traced by MgII absorption-line
systems. We have a program that first selects galaxies in a
volume-limited survey and then searches for absorbers in QSO
sightlines (Barton & Cooke 2009). This "reverse approach"
minimizes many biases inherent to traditional surveys and
helps to better understand absorber characteristics as they
relate to galaxy properties, such as color and environment.
These data are used to determine MgII kinematics (Kacprzak et al 2009, 2010 in prep.)
and if the presence and/or replenishment of these systems
results from galactic-scale outflows driven by stellar and
supernovae winds or inflows of intergalactic material.
Click here to access the ADS link displaying a list of
articles describing this work and other research of mine.
Welcome to my office
The Hubble Space Telescope
| The Milky Way can be seen, as well as two
of our closest companion galaxies, the Large and Small
Magellenic Clouds, in this long-exposure image of the 4
meter telescope at
located in the Southern Hemisphere (Chile).