NASA Sounding Rocket Program

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Laboratory for Extraterrestrial Physics/692A new
stream of interstellar gas

• We interpret the LENA data as evidence of a new
  stream of interstellar gas.
• The presence of such a stream is being tested and
  confirmed by other data sets, each the subject of
  one or more papers
• Neutral solar wind flux (IMAGE) Collier et al.
  2001
• Cyclotron waves (ISEE, Wind) Collier et al.,
  2002
• He pickup ion observations (ACE)
• X-rays from solar wind interactions (ROSAT)

Collier et al., Adv. Space Res., in press, 2003.