Recent IBEX observations and the evolving interstellar interaction

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The first all-sky maps of Energetic Neutral Atoms (ENAs) from the Interstellar Boundary Explorer (IBEX) exhibited smoothly varying, globally distributed flux and a narrow "ribbon" of enhanced ENA emissions. Since then, IBEX has completed another set of full sky maps, which show that the large-scale structure was generally stable between the first and second halves of 2009. However, these maps also indicate some very intriguing smaller scale temporal changes in the outer heliospheric emissions. This paper provides an update on the IBEX observations in general and examines their temporal variations in particular. The observed large-scale stability and the systematic changes at smaller spatial scales provide important new information about the outer heliosphere and its global interaction with the galaxy, as well as illuminating possible mechanisms for producing the IBEX ribbon.

Original languageEnglish (US)
Title of host publicationPartially Ionized Plasmas Throughout the Cosmos - Proceedings of the 2010 Huntsville Workshop
Number of pages9
StatePublished - 2011
Externally publishedYes
Event2010 Huntsville Workshop on Partially Ionized Plasmas Throughout the Cosmos - Nashville, TN, United States
Duration: Oct 3 2011Oct 8 2011

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Conference2010 Huntsville Workshop on Partially Ionized Plasmas Throughout the Cosmos
Country/TerritoryUnited States
CityNashville, TN

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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