2018 - 19

"Cosmic Magnetism and Plasma Microphysics (or, I get by with help from my little friends)"The Universe is magnetized. While magnetic-field strengths of just ~10^{-18} G are required to achieve this both in our Galaxy and in clusters of galaxies...

"The Hercules Stream: resonant stars visiting the Solar vicinity" The origin of the stars with coherent velocities discovered in the solar neighborhood remains uncertain, but their dynamics and evolution are key to understanding the dynamics of the...

"Decoding Chemical Evolution and Nucleosynthesis" I will discuss insights from analytic and numerical models of galactic chemical evolution and observations of Milky Way elemental abundances from the SDSS APOGEE survey. Under generic model assumptions...

"Modeling Galactic Outflows with Petascale Simulations" Galactic outflows play a critical role in the formation and evolution of galaxies, as the expulsion of gas regulates the baryonic content of dwarf galaxies and likely explains the behavior of the...

"Stellar Rejuvenation in Galactic Center and AGNs: Analog of Planet Formation in Gravitational Wave Sources" The prevalence of massive black holes and nuclear stellar clusters implies some stars may be trapped in accretion disks around active galactic...

Joey Rodriguez (CfA) K2-266: A Compact Multiplanet System with a Planet that is "Way Out of Line" Jia Liu (Princeton) "Running massive neutrino simulations fast and accurately" Chuck Steidel (Caltech) "Diffuse Line Emission from High Redshift Galaxy Halos...

Catherine Zucker (CfA) “Large-Scale Galactic Filaments -- Shock and Shear in the Milky Way?” James Owen (Imperial College London) “Misaligned circumbinary discs” Jason Wright (Penn State) “Eppur Si Muove” Bryan Terrazas (UMich) "Black hole-galaxy scaling...

Rahul Kannan (ITC) “'Efficacy of stellar radiation fields in regulating star formation” Alyson Brooks (Rutgers) “UDG Formation as a Function of Environment in Cosmological Simulations” Ben Safdi (University of Michigan) “Evidence against the dark matter...

Victor Buza (CfA) “New Constraints on Primordial Gravitational Waves using Planck, WMAP and BICEP2/Keck Observations through the 2015 season” Dan Foreman-Mackey (Flatiron Institute) “Hamiltonian Monte Carlo methods for astronomers” Raffaella Margutti...

Nia Imara (CfA) "X Marks the Spot (of Star Formation)" Nick Gnedin (Fermilab) “Courant-Friedrichs-Lewy Condition: Even Textbook Truths Are Worth Revisiting” Christopher Moore (CfA) “Magnetic Field Morphology Effects on the Determination of Oxygen and Iron...