Evidence of a Secondary Stream of Neutral Fluxes at 1 AU

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Evidence of a Secondary Stream of Neutral Fluxes
at 1 AU
Michael R. Collier Thomas E. Moore, David
Simpson, Aaron Roberts, Adam Szabo, Steven
Fuselier, Peter Wurz, Martin A. Lee and Bruce T.
Tsurutani
Image Frisch, 2000, Fig. 5
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The Earth in its Orbit Around the Sun
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Interstellar Neutral Observations (a)
Fuselier, S.A., Can LENA see the interstellar
neutrals?, 1999 based on work by Gruntman (1991)
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Interstellar Neutral Observations (b)
Top Image Frisch, 2000, Fig. 8
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Pickup Ion Observations (a)
Mobius et al., Coordinated analysis of the
interstellar focusing cone at 1 AU, COSPAR
Abstract 02590, 2002
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Pickup Ion Observations (b)
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Neutral Solar Wind (a)
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Neutral Solar Wind (b)
From Bzowski et al., ICARUS, 124, 209, 1996.
Collier et al., JGR, 106, 24,893-24,906,
2001 Collier et al., SW10 Proc., in press, 2002
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Energetic H Atom Observations
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ISEE-3 Wave Observations


From Tsurutani et al., GRL, 21, 633,
1994 Pickup of cold hydrogen neutrals is the
most likely source of the waves.
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Wind Wave Observations (a)
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Wind Wave Observations (b)
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Behavior of Hydrogen for mgt1.0
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One Possible Secondary Stream Origin
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ConclusionWhy are all these six independent data
sets consistently pointing in the wrong
direction?
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Ulysses Wave Observations
Data from Murphy et al., Space Sci. Rev., 72,
447, 1995
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Another Possible Secondary Stream Origin
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Secondary Stream Characteristics
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The Earth Focusing Cone
Warning For observations of extraterrestrial
neutrals at the Earth, worry a bit about the
effect of the Earth and its motion.
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Speculation A Relationship Between Noctilucent
Clouds, PMSEs, and the Secondary Stream?