I spend most of my time managing projects related to the development and operation of space missions. First, as a member of the MIPS instrument support team for the Spitzer Space Telescope, then as data characterization scientist for the WISE all sky survey project.  In 2012, I relocated from Caltech to the Max Planck Institute for Astronomy in Heidelberg to work on the Euclid mission as Lead of the Calibration Working Group.

When I’m not busy with satellite project work, my research interests are centered around massive evolved stars, circumstellar shells, stellar mass loss, physics of compact objects (white dwarfs, neutron stars, black holes), magnetars (SGRs and AXPs), X-ray binaries, accretion processes, formation and evolution of binary stars, transients and variable stars, and time domain astronomy.

Discovery of an infrared ring around a magnetar (Wachter et al. 2008, Nature, 453, 626)

Discovery of 24 micron circumstellar shells around a hidden population of massive stars (Wachter et al. 2010, AJ, 139, 2330)