CEDAR email: TESS-2018 special session on ionospheric outflow

Mike Liemohn liemohn at umich.edu
Wed Feb 7 08:56:14 MST 2018

Call for TESS-2018 Submissions: Comparative Physics and Consequences of Celestial Body Atmospheric Loss

From: Liemohn, Shannon Curry, Katherine Garcia-Sage, Nicholeen Viall

The Triennial Earth-Sun Summit, TESS-2018 <https://connect.agu.org/tess2018/home>, is a meeting that brings together the Solar Physics Division of AAS with the Space Physics and Aeronomy section of AGU, to be held 20-24 May 2018 in Leesburg, Virginia. TESS not only promotes greater interaction and unity within Heliophysics but also connections to astrophysics and planetary physics.

We would like to bring to the CEDAR community's attention a TESS-2018 special session on "Comparative Physics and Consequences of Celestial Body Atmospheric Loss." We welcome contributions to this session on any related topic to particle outflow from the Earth, planets, moons, comets, or the Sun. Studies that are specific to a single celestial body are welcome, as are studies that compare different bodies and address fundamental physical processes or universal outflow phenomena. 

The TESS-2018 abstract submission deadline is 20 February 2018.

Session description:
Atmospheres abound throughout the solar system, including the Sun and Earth, the terrestrial planets, the outer planets, several planetary moons, and comets. The loss of these atmospheres includes the escape of both neutral gas as well as ionized particles.  While the neutral-ion proportions and dominant forces can be different, the basic physics and governing equations are similar. Therefore, much can be learned from a discussion of atmospheric loss comparing the physics and escape rates across different celestial bodies. For smaller bodies, the consequences of atmospheric outflow on the celestial object’s magnetosphere (whether that is internally produced or externally induced) can be substantial, driving structure and dynamics throughout the space environment of the celestial object (on a variety of spatial and temporal scale sizes). For the Sun, atmospheric loss creates the supersonic solar wind that creates and fills the heliosphere, affects all of the planetary obstacles within it. This session welcomes presentations across the broad spectrum of solar system objects, including the Sun, planets, moons, and comets, and all possible investigation techniques, including recent or archival observations, numerical approaches ranging from analytical to empirical to coupled first-principles models, theoretical analyses, or relevant lab experiments.
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