The mystery of the MISSING MOMENTUM H. S. Hudson Space Sciences Laboratory, University of California, Berkeley, USA Astronomy & Astrophysics Group, Glasgow.

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Presentation transcript:

The mystery of the MISSING MOMENTUM H. S. Hudson Space Sciences Laboratory, University of California, Berkeley, USA Astronomy & Astrophysics Group, Glasgow Berkeley Dec. 16, 2010

Flare cartoon Berkeley Dec. 16, 2010 Fletcher & Hudson, 2008

Berkeley Dec. 16, 2010 Momentum cartoon 1 1 Simplified view of vertical component (Hudson et al, 2011)

The MYSTERY Each mass motion in a flare/CME requires momentum conservation This is easy to imagine for evaporation or in the case of a CME But what happens to the vertical component of the impulsive energy release? This is presently undetected! Berkeley Dec. 16, 2010

The MYSTERY Each mass motion in a flare/CME requires momentum conservation This is easy to imagine for evaporation or in the case of a CME But what happens to the vertical component of the impulsive energy release? This is presently undetected! Berkeley Dec. 16, 2010

The RELEVANCE Flare energy is comparable to general coronal energy (the nanoflare hypothesis) Non-CME flares must inject momentum and energy into the upper corona via wave action There must be signatures of this punctuated momentum injection in the slow solar wind. Berkeley Dec. 16, 2010