A living catalog of stream interaction regions in the Parker Solar Probe era
Abstract
Stream interaction regions (SIRs) and corotating interaction regions (CIRs) are important phenomena in heliospheric physics. These large-scale structures vary temporally and spatially, both in latitude and with radial distance. The additions of Parker Solar Probe (PSP) and Solar Orbiter have allowed for investigations into the radial evolution of these structures over a wide range of heliocentric distances for the first time since the Helios era. To better enable investigations of SIRs and CIRs within the inner heliosphere, we have developed a living catalog of SIR and CIR observations by Parker Solar Probe with corresponding observations by STEREO-A as well as ACE and Wind at 1 au. The methodology used for the identification of events and the generation of this catalog, the initial catalog of PSP observations spanning orbits one through five along with corresponding 1 au observations, and information on accessing the living catalog for future studies is described. This list of SIR and CIR events from PSP and corresponding observations from other heliophysics missions will enable case studies utilizing unique orbital arrangements, as well as aid in future statistical studies to further understand the properties and evolution of these structures.
Versions
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BibTeX
@misc{allen2026living,
title = {{A living catalog of stream interaction regions in the Parker Solar Probe era}},
author = {R. C. Allen and G. C. Ho and L. K. Jian and S. K. Vines and S. D. Bale and A. W. Case and M. E. Hill and C. J. Joyce and J. C. Kasper and K. E. Korreck and D. M. Malaspina and D. J. McComas and R. McNutt and C. Möstl and D. Odstrcil and N. Raouafi and N. A. Schwadron and M. L. Stevens},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.35506},
eprint = {2610.35506},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.35506},
}
RIS
TY - UNPB
TI - A living catalog of stream interaction regions in the Parker Solar Probe era
AU - R. C. Allen
AU - G. C. Ho
AU - L. K. Jian
AU - S. K. Vines
AU - S. D. Bale
AU - A. W. Case
AU - M. E. Hill
AU - C. J. Joyce
AU - J. C. Kasper
AU - K. E. Korreck
AU - D. M. Malaspina
AU - D. J. McComas
AU - R. McNutt
AU - C. Möstl
AU - D. Odstrcil
AU - N. Raouafi
AU - N. A. Schwadron
AU - M. L. Stevens
PY - 2026
DA - 2026/10/26
PB - arXiv
DO - 10.48550/arxiv.2610.35506
UR - https://arxiv.org/abs/2610.35506
AB - Stream interaction regions (SIRs) and corotating interaction regions (CIRs) are important phenomena in heliospheric physics. These large-scale structures vary temporally and spatially, both in latitude and with radial distance. The additions of Parker Solar Probe (PSP) and Solar Orbiter have allowed for investigations into the radial evolution of these structures over a wide range of heliocentric distances for the first time since the Helios era. To better enable investigations of SIRs and CIRs within the inner heliosphere, we have developed a living catalog of SIR and CIR observations by Parker Solar Probe with corresponding observations by STEREO-A as well as ACE and Wind at 1 au. The methodology used for the identification of events and the generation of this catalog, the initial catalog of PSP observations spanning orbits one through five along with corresponding 1 au observations, and information on accessing the living catalog for future studies is described. This list of SIR and CIR events from PSP and corresponding observations from other heliophysics missions will enable case studies utilizing unique orbital arrangements, as well as aid in future statistical studies to further understand the properties and evolution of these structures.
ER -