Astrophysics Seminars

Sep
29
2016

Institute for Advanced Study Informal Astrophysics Seminar

Chaotic Dances of Vectors: Misaligned Exoplanets, Disks/Rings and Planet IX
11:00am|Bloomberg Hall, Astrophysics Library
I will discuss several problems in (exo)planetary dynamics, all involving somewhat surprising behaviors of vectors tugging one another. (1) Binary-disk-star interaction leading to the formation of misaligned protoplanetary disks; (2) Gentle...
Sep
22
2016

Institute for Advanced Study Informal Astrophysics Seminar

Formation of the Hubble Sequence
11:00am|Bloomberg Hall, Astrophysics Library
This talk explains the formation of galaxies of different morphological types (aka the Hubble Sequence): spirals vs ellipticals, disks vs spheroids. The talk includes theory, observation, and simulation, and is aimed at a general astrophysics...
May
12
2016

Institute for Advanced Study Informal Astrophysics Seminar

Quasinormal Modes Beyond Kerr Black Holes
Aaron Zimmerman
2:00pm|Bloomberg Hall, Astrophysics Library
NOTE TIME CHANGEThe historic first detection of a gravitational waves from merging black holes came with an unexpected windfall: the first observation of a black hole ringdown. The ringdown of a black hole through damped ``quasinormal'' oscillation...
Apr
14
2016

Institute for Advanced Study Informal Astrophysics Seminar

CMB Spectral Distortions within LCDM
Jens Chluba
11:00am|Bloomberg Hall, Astrophysics Library
Spectral distortions of the CMB provide a powerful new probe of early Universe processes. Even if so far no average spectral distortion has been seen, LCDM does predict several signals that are within reach of current technology. In this talk, I...