Wine and Cheese Fall 2018: Difference between revisions
| Line 16: | Line 16: | ||
=17 September = | =17 September = | ||
== Kathryn Johnston (Columbia) == | == Kathryn Johnston (Columbia) == | ||
''' | '''Physical Manifestations of Evolution, Regularity and Chaos In and Around Our Galaxy'''<br> | ||
Our Galaxy is thought to be dynamically young with a fairly smooth potential dominated by a nearly spherical dark matter halo that has evolved little in the last several billion years. These attributes broadly suggest that potential evolution and dynamical chaos should have negligible influences on the orbits of its constituent stars, as well as on the stellar structures they collectively support. This talk reviews some recent results which point to signatures of Galactic evolution and the chaotic nature of stellar orbits that can be (and have been) observed. | |||
=24 September (GSS) = | =24 September (GSS) = | ||
Revision as of 17:17, 10 September 2018
This page records the schedule, titles and abstracts of the JHU/STScI CAS Astrophysics Wine & Cheese Series in Fall 2018.
Wine and Cheese sessions with one talk will have a 50 minute talk with 10 minutes for questions. Sessions with two speakers will have two 25 minute talks, each with 5 minutes for questions. Sessions in the Graduate Student Series will have three 15 minute talks, each with 5 minutes for questions.
Back to W&C Schedule
10 September
Zaven Arazoumian (GSFC)
A NICER View: Astrophysics and Exploration from the International Space Station
Neutron stars are extraordinary in nearly every way. They are the densest objects in the universe, their gravity is immense, and they are the most powerful magnets known. Some -- those we call "pulsars" -- sweep narrow beams of radiation through space as they spin, sometimes as fast as blender blades, appearing to flash with unrivaled regularity like cosmic timepieces. Launched in June 2017, NASA's dual-purpose Neutron star Interior Composition Explorer (NICER) mission aims to answer longstanding questions about the physics and astrophysics of neutron stars, with a telescope on the International Space Station designed to investigate their X-ray emissions and precisely time their pulsations. The mission's second purpose is a first-ever demonstration of autonomous spacecraft navigation using pulsars as beacons in a "Galactic Positioning System." This presentation provides an overview of the NICER mission, its SEXTANT navigation demonstration, and the insights that NICER is delivering about neutron stars, black holes, and the high-energy processes that they drive.
17 September
Kathryn Johnston (Columbia)
Physical Manifestations of Evolution, Regularity and Chaos In and Around Our Galaxy
Our Galaxy is thought to be dynamically young with a fairly smooth potential dominated by a nearly spherical dark matter halo that has evolved little in the last several billion years. These attributes broadly suggest that potential evolution and dynamical chaos should have negligible influences on the orbits of its constituent stars, as well as on the stellar structures they collectively support. This talk reviews some recent results which point to signatures of Galactic evolution and the chaotic nature of stellar orbits that can be (and have been) observed.
24 September (GSS)
First (JHU)
Title
Abstract
Second (JHU)
Title
Abstract
Third (JHU)
Title
Abstract
1 October
Andrew Youdin (UC Berkeley)
Title
Abstract
Yuan-Sen Ting ()
Title
Abstract
8 October
Speaker
Title
Abstract
Paz Beniammini (GWU)
Title
Abstract
15 October
Speaker
Title
Abstract
Alice Pisani (Princeton)
Title
Abstract
22 October (GSS)
Speaker
Title
Abstract
Speaker
Title
Abstract
Speaker
Title
Abstract
29 Kevin France (Colorado)
Speaker
Title
Abstract
5 November
Speaker
Title
Abstract
Speaker
Title
Abstract
12 November =
Speaker
Title
Abstract
26 November (GSS)
Speaker
Title
Abstract
Speaker
Title
Abstract
Speaker
Title
Abstract
3 December
Speaker
Title
Abstract
