Spatial Structure of CIRs
- 1Wigner Research Centre for Physics, Department of Space Physics and Space Technology, Budapest, Hungary
- 2Eötvös Loránd University, Doctoral School of Physics, Budapest, Hungary
Co-rotating Interaction Regions are complex and fascianting structures in the Heliosphere that
play an important role in space weather. They arise from the fast solar wind interacting with the
slow solar wind streams. The interface between fast and slow solar wind is called the stream
interface, and it is common for CIRs to produce forward shock at the leading edge and reverse
shock at the trailing edge. CIRs often have considerable tilts in the north-south axis, owing to the magnetic
conditions on the Sun.
Examination of the spatial structure of CIRs, – most importantly the aforementioned tilt – is not
an easy task. We attempt a multi-spacecraft investigation in order to examine the spatial
structure of CIRs on different distance scales. Using all available spacecraft data nearby, the tilt
of the stream interface can be determined considering the time delays of the effects caused by
the CIR recorded by each spacecraft. Our final aim is to improve solar wind propagation
methods with these detailed CIR results.
How to cite: Koban, G., Opitz, A., Nemeth, Z., Facsko, G., Madar, A., Timar, A., Dalya, Z., and Biro, N.: Spatial Structure of CIRs, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-4121, https://doi.org/10.5194/egusphere-egu22-4121, 2022.
