COMPARISON OF HELIOSPHERIC MODELS WITH OBSERVATIONS OF THE VOYAGER AND IBEX SPACECRAFT

Journal Article · Tue Nov 01 00:00:00 EDT 2011 · Astrophysical Journal Letters

DOI:https://doi.org/10.1088/2041-8205/741/1/L6· OSTI ID:21565356

Strumik, M; Ratkiewicz, R; Grygorczuk, J ^[1]; Ben-Jaffel, L ^[2]

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1. Space Research Centre, Polish Academy of Sciences, Bartycka 18A, 00-716 Warsaw (Poland)
2. CNRS, UMR7095, Institut d'Astrophysique de Paris, F-75014 Paris (France)

Results of modeling the heliosphere are compared with observations of the Voyager spacecraft and the IBEX mission simultaneously. The MHD solutions are tested against observational data for different strengths and orientations of the local interstellar magnetic field (LIMF) used in the simulations for asymmetric magnetized solar wind flow. We show that the model reproduces approximately the position of the IBEX ribbon and the termination shock crossing distance for Voyager 2, when the LIMF vector lies in the proximity of the hydrogen deflection plane with the inclination angle to the local interstellar flow equal to 39 deg. {+-} 9 deg. and its magnitude is 2.4 {+-} 0.3 {mu}G. In ecliptic coordinates this solution corresponds to the LIMF vector pointing from (longitude, latitude) = (227 deg. {+-} 7 deg., 35 deg. {+-} 7 deg.).

• OSTI ID: 21565356
• Journal Information: Astrophysical Journal Letters, Vol. 741, Issue 1; Other Information: DOI: 10.1088/2041-8205/741/1/L6; ISSN 2041-8205
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ASYMMETRY
HELIOSPHERE
INTERSTELLAR MAGNETIC FIELDS
MAGNETOHYDRODYNAMICS
SIMULATION
SOLAR WIND
VOYAGER SPACE PROBES
ATMOSPHERES
FLUID MECHANICS
HYDRODYNAMICS
MAGNETIC FIELDS
MECHANICS
SOLAR ACTIVITY
SOLAR ATMOSPHERE
SPACE VEHICLES
STELLAR ACTIVITY
STELLAR ATMOSPHERES
STELLAR WINDS
VEHICLES