Physics – Plasma Physics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsh41c..02k&link_type=abstract
American Geophysical Union, Fall Meeting 2011, abstract #SH41C-02
Physics
Plasma Physics
[7509] Solar Physics, Astrophysics, And Astronomy / Corona, [7594] Solar Physics, Astrophysics, And Astronomy / Instruments And Techniques, [7829] Space Plasma Physics / Kinetic Waves And Instabilities, [7863] Space Plasma Physics / Turbulence
Scientific paper
Arguably the most significant open question in heliophysics is the identification of the physical processes responsible for sustaining the solar corona at millions of degrees and for heating the solar wind as it expands into interplanetary space. Given the loss of energy in the corona through radiation, heat conduction, waves, and the escaping solar wind a significant amount of power is required to maintain the observed coronal temperatures. In situ observations further indicate that the solar wind is continually heated as it expands into interplanetary space. The ultimate source of this energy is the convective motion of the surface of the photosphere and its embedded magnetic field, but the mechanisms by which the large scale and low frequency motion of the field is able to dissipate sufficient heat in the corona and solar wind have not been conclusively identified. Candidate theories include the dissipation of well-developed turbulence, resonant absorption of ion-cyclotron waves, and direct injection on energy through a continuous process of magnetic reconnection and small-scale flares. This talk will describe how the NASA Solar Probe Plus mission will identify the dominant forces at work by plunging into the solar corona and making the first direct measurements of the connection between the corona and the solar wind. The primary science objective of Solar Probe Plus is to determine the structure and dynamics of the Sun's coronal magnetic field and to understand how the corona and solar wind are heated and accelerated and how energetic particles are produced and evolve. In order to meet this objective the spacecraft uses a sequence of gravitational assists to gradually approach the solar corona, culminating with a sequence of orbits with perihelion within 8.5 solar radii of the surface of the Sun. This talk will discuss the Solar Probe Plus mission, with a focus on how the comprehensive instrument payload will allow us to directly observe the origin, evolution, and significance of heliospheric turbulence.
Kasper Justin Christophe
Spp
The Sweap Investigation
No associations
LandOfFree
Understanding the Origin and Evolution of Turbulence in the Inner Heliosphere with Solar Probe Plus does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Understanding the Origin and Evolution of Turbulence in the Inner Heliosphere with Solar Probe Plus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Understanding the Origin and Evolution of Turbulence in the Inner Heliosphere with Solar Probe Plus will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-879358