Galaxy formation in the first billion years mark a time of great
upheaval in our cosmic history: the first sources of light in the
Universe, these galaxies ended the 'cosmic dark ages' and produced
the first...
Interpreting observations of the universe’s most energetic
phenomena requires a detailed understanding of particle
acceleration in astrophysical environments. In particular, these
accelerated particles, or cosmic rays, are responsible for
non...
The Bahcall Lunch follow the astrophysics colloquium
lecture. Registration is required by 3pm the previous
Friday so a meal can be provided. Please contact Amanda
Cenker with questions.
Much about dark matter remains unknown and much can be learned
about its nature from its distribution on sub-galactic scales. I
will discuss measurements of the small-scale structure of dark
matter in elliptical galaxies and in the Milky Way from...
There is interest in operating a 1-MeV 1-kWatt electron
accelerator on a spacecraft in the tenuous plasma of the Earth’s
distant magnetosphere. The desire is to fire the electron beam into
the atmospheric loss cone to optically excite the atmosphere...
Abstract: Are black holes stable? This
question, which has played a central role in General Relativity
ever since the discoveries of the Schwarzschild (1916) and Kerr
(1963) solutions, can be formulated as a remarkably simple to state
mathematical...
