Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21743434f&link_type=abstract
American Astronomical Society, AAS Meeting #217, #434.34; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
Variations in the spatial configuration of the interstellar magnetic field (ISMF) near the Sun are constrained by the ISMF direction determined by the Interstellar Boundary Explorer spacecraft (IBEX) observations of a 'Ribbon' of energetic neutral atoms (ENAs). The Ribbon is observed for sightlines perpendicular to the ISMF as it drapes over the heliosphere. The center of the Ribbon arc is compared with the ISMF direction derived from optical polarization data for stars within 40 pc. These comparisons are based on old and new interstellar polarization data for 30 nearby stars within 90 deg of the heliosphere nose, and utilize a fitting process to determine the ISMF direction from the polarization position angles. This research is supported by NASA funding, and by NASA funding of the IBEX mission, as a part of NASA's Explorer Program.
Andersson Björn
Berdyugin Andrei
Frisch Priscilla C.
Funsten Herb
Magalhaes Mario
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