real job gets real

Having been on leave (and pretending still to be a postdoc) over the last year, today I fully assume my position as Assistant Professor of Physics at UC Davis. Gulp.

Hubble Space Telescope (HST) Theory grant: satellite galaxies

Space Telescope Science Institute has awarded our team

a Hubble Space Telescope (HST) Theory grant for Understanding the physics of gas stripping and star-formation quenching of the satellite dwarf galaxies in the Local Group. Our goal is to use our Latte suite of FIRE-2 simulations to understand how satellite dwarf galaxies evolve after they fall into a host halo like the Milky Way, with emphasis on how (internal) stellar feedback and (external) environmental processes like ram-pressure stripping remove their gas and quench their star formation, as observed in the satellites of the Milky Way.

Blue Waters supercomputer: 160 million core-hour allocation

The National Science Foundation (NSF) has awarded our FIRE collaboration an allocation of 160 million core-hours on NCSA’s Blue Waters supercomputer for Probing New Physics in Galaxy Formation at Ultra-High Resolution. With this allocation, we will push our FIRE-2 simulations, include the Latte suite of Milky Way-like galaxies, to unprecedented resolution: cosmological zoom-in simulations using over a billion particles per galaxy. We also will include new physical processes, including magneto-hydrodynamics, self-consistent cosmic ray transport/feedback, and full radiative transfer. Congratulations to the whole FIRE collaboration!

Hubble Space Telescope (HST) Treasury Program: MW-6D survey

Space Telescope Science Institute has awarded our team

  • PI Nitya Kallivayalil
  • co-PI Andrew Wetzel
  • co-investigators Jay Anderson, Gurtina Besla, Tom Brown, Alis Deason, Tobias Fritz, Marla Geha, Raja Guhathakurta, Evan Kirby, Steve Majewski, Josh Simon, Tony Sohn, Erik Tollerud, and Roeland van der Marel

a Hubble Space Telescope (HST) Treasury Program of 164 orbits for Milky Way Cosmology: Laying the Foundation for Full 6-D Dynamical Mapping of the Nearby UniverseThese Hubble Space Telescope (HST) observations will provide the initial baselines for long-term proper-motion measurements for all of the known satellite dwarf galaxies around the Milky Way. Our goal is to measure the orbital motions of these satellites as they move across the sky over the next 3 – 10 years, to complete their full 6-dimensional orbital phase-space. Our key science goals are to

  • Dynamically measure the mass distribution of the Milky Way’s dark-matter halo
  • Understand the role of the Milky Way’s environment on the evolution of dwarf galaxies
  • Use dwarf galaxies as probes of the epoch of reionization
  • Test physical associations of dwarf galaxies
  • Measure internal stellar kinematics of dwarf galaxies, to test the nature of Cold Dark Matter (CDM)