Astrophysics Seminars

Irradiation, bloating, bad circulation, hot flashes, cyclic mass loss. Pulsar radiation has been observed to do many suprising things to nearby companion stars ("black widows" and "redbacks"), posing several long-standing theoretical puzzles for...

Our current understanding of how galaxies evolve over cosmic time is highly incomplete without understanding what is now known as the major baryonic component: the Circumgalactic medium (CGM). The CGM contains both the fuel for and the end products...

Gyrochronology utilizes the spin-down of stars as a function of time as an indicator of stellar age. This technique has the potential to yield precise ages for large samples of stars, providing unprecedented chronological information for studies of...

Studies of Fermi data indicate an excess of GeV gamma rays around the Galactic center (GC), possibly due to dark matter. I will show that young gamma-ray pulsars can yield a signal with a spectrum, amplitude, and morphology similar to the observed...