[Baps] BU seminar today (Thursday) - Kurt Retherford

[Withers, Paul]

Apologies for the late notice.

Future seminars and logistics described at:
http://www.bu.edu/csp/edoutreach/seminar/

Paul

-------- Forwarded Message --------
Subject: 	[Announce] CSP Seminar - Retherford (9/20)
Date: 	Thu, 20 Sep 2018 13:24:33 +0000
From: 	Gordon, Mary <megordon at bu.edu>
To: 	announce at skynet.bu.edu <announce at skynet.bu.edu>, 
csp_seminar at skynet.bu.edu <csp_seminar at skynet.bu.edu>



_Thursday, 9/20 @ 4:00pm _

CAS 502

**

*Speaker:*

Kurt Retherford

/Southwest Research Institute/

*Title:*

Europa-UVS, JUICE-UVS, and Hubble Observations of Galilean Satellite 
Atmospheres

**

*Abstract: *

The Galilean satellites display a diverse range of activity and coupling 
of their tenuous (mostly exospheric) atmospheres to the plasma 
environment of Jupiter.  UV remote sensing observations of these 
atmospheres inform our understanding of Io’s volcanism and feeding of 
plasma into the Jupiter system, Europa’s water vapor plumes and 
habitability, Ganymede’s internal magnetic field and ocean, and 
Callisto’s atmospheric composition and volatile transport.  NASA's 
Europa Clipper mission plans for ~44 Europa flybys and focuses its 
science goals to investigate potential habitable regions within Europa's 
subsurface, answering questions such as could the source of water vapor 
plumes connect directly with the liquid ocean?  The European Space 
Agency’s Jupiter Icy Moons Explorer (JUICE) mission objectives include 
this same habitability goal for Europa, planning 2 Europa flybys. 
Moreover, JUICE investigates the entire Jupiter system and ultimately 
orbits Ganymede to investigate its subsurface ocean and habitability, 
among numerous other goals.  I’ll describe our group’s Europa 
Ultraviolet Spectrograph (Europa-UVS) and JUICE-UVS instrument 
developments at SwRI and planned observations, which utilize far-UV 
emissions, reflectance, and transmission techniques to constrain the 
composition and structure of satellite atmospheres, surfaces, and plasma 
environments.  Our long series of Hubble Space Telescope (HST) 
observations of the Galilean satellites inform these mission plans; I 
will summarize results from recent HST observations by several groups.

//

/Light refreshments will be served prior to the seminar at 3:45pm in CAS 
500. /

Mary Gordon

Fiscal Coordinator | Boston University

Center for Space Physics | Institute for Astrophysical Research

725 Commonwealth Avenue, Room 506 | Boston, Massachusetts 02215

Tel: 617-353-5992 | Fax: 617-353-6463

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