[Theory-seminars] Fwd: Physics Colloquium Friday, October 9, 2015 "Asteroids and Comets: Keys to understanding the early Solar System and Exoplanetary " - by Dr. Ryan

[Mary Fox]

-------- Original Message --------
Subject: 	Physics Colloquium Friday, October 9, 2015 "Asteroids and 
Comets: Keys to understanding the early Solar System and Exoplanetary " 
- by Dr. Ryan
Date: 	Tue, 6 Oct 2015 20:04:37 +0000
From: 	Wilkinson, Eleonor V <evwilk at wm.edu>
To: 	physics0607 at physics.wm.edu <physics0607 at physics.wm.edu>
CC: 	undergrads0607 at physics.wm.edu <undergrads0607 at physics.wm.edu>



*_PHYSICS COLLOQUIUM_*

Friday, October 9, 2015

4:00 PM

Small Hall, Room 111

*Dr. Erin Ryan *[Host: W. Deconinck]**

NASA Goddard**

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* Title of Talk:*

*/"Asteroids and Comets: Keys to understanding the early Solar System 
and Exoplanetary Systems"/*

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*Abstract:*

Abstract: Recent searches for exoplanetary systems from ground based 
telescopic surveys and the Kepler mission have shown that planetary 
systems are common within our galaxy, however the current configuration 
of our solar system may not be an accurate prototype for other planetary 
systems. In particular, the discovery of a number of hot Jupiters have 
been found at distances from their host stars that confounds the current 
planet formation models unless a form of planetary migration is invoked. 
Concurrently with the first hot Jupiter detections, the planetary 
science community recognized the potential for planet migration to shape 
our own Solar System. Numerous lines of evidence within the Solar System 
suggest that giant planet migration had a significant impact on shaping 
the dynamical orbits and small body populations we witness today.

Although the planets have undergone alteration due to heating and 
differentiation, the compositions of the small bodies in the solar 
system can be treated as time capsules from the early epoch of planet 
formation. The compositions of comets and asteroids are key to 
understanding planetary migration in our solar system, and even how 
volatiles such as water could have been transported from the outer 
reaches of Kuiper Belt into the inner solar system. I will discuss 
results on comet and asteroid compositions and the boundaries they place 
on planetary migration models and the origin of volatiles in the inner 
solar system.

*/https://events.wm.edu/event/view/physics/55336/*

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*/*Cookies & coffee will be served in Room 122 at 3:30 PM/*

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*Eleonor V. Wilkinson*

Administrative & Office Specialist

The College of William & Mary-Physics
Small Hall, Room 123
300 Ukrop Way
Williamsburg, VA 23185

Telephone: 757-221-3503

Fax: 757-221-3540



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