The Streamer Blowout Origin of a Flux Rope and Energetic Particle Event Observed by Parker Solar Probe at 0.5 au

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dc.contributor.authorLario, D.
dc.contributor.authorBalmaceda, L.
dc.contributor.authorAlzate, N.
dc.contributor.authorMays, M. L.
dc.contributor.authorRichardson, I. G.
dc.contributor.authorAllen, R. C.
dc.contributor.authorFlorido-Llinas, M.
dc.contributor.authorNieves-Chinchilla, T.
dc.contributor.authorKoval, A.
dc.contributor.authorLugaz, N.
dc.contributor.authorJian, L. K.
dc.contributor.authorArge, C. N.
dc.contributor.authorMacneice, P. J.
dc.contributor.authorOdstrcil, D.
dc.contributor.authorMorgan, H.
dc.contributor.authorSzabo, A.
dc.contributor.authorDesai, M. I.
dc.contributor.authorWhittlesey, P. L.
dc.contributor.authorStevens, M. L.
dc.contributor.authorHo, G. C.
dc.contributor.authorLuhmann, J. G.
dc.date.accessioned2020-08-06T20:37:24Z
dc.date.available2020-08-06T20:37:24Z
dc.date.issued2020-07-10
dc.description.abstractThe distribution of spacecraft in the inner heliosphere during 2019 March enabled comprehensive observations of an interplanetary coronal mass ejection (ICME) that encountered Parker Solar Probe (PSP) at 0.547 au from the Sun. This ICME originated as a slow (~311 km s⁻¹) streamer blowout (SBO) on the Sun as measured by the white-light coronagraphs on board the Solar TErrestrial RElations Observatory-A and the Solar and Heliospheric Observatory. Despite its low initial speed, the passage of the ICME at PSP was preceded by an anisotropic, energetic (lesssim100 keV/n) ion enhancement and by two interplanetary shocks. The ICME was embedded between slow (~300 km s⁻¹) solar wind and a following, relatively high-speed (~500 km s⁻¹), stream that most likely was responsible for the unexpectedly short (based on the SBO speed) ICME transit time of less than ~56 hr between the Sun and PSP, and for the formation of the preceding shocks. By assuming a graduated cylindrical shell (GCS) model for the SBO that expands self-similarly with time, we estimate the propagation direction and morphology of the SBO near the Sun. We reconstruct the flux-rope structure of the in situ ICME assuming an elliptic-cylindrical topology and compare it with the portion of the 3D flux-rope GCS morphology intercepted by PSP. ADAPT-WSA-ENLIL-Cone magnetohydrodynamic simulations are used to illustrate the ICME propagation in a structured background solar wind and estimate the time when PSP established magnetic connection with the compressed region that formed in front of the ICME. This time is consistent with the arrival at PSP of energetic particles accelerated upstream of the ICME.en_US
dc.description.sponsorshipWe acknowledge the NASA Parker Solar Probe mission team and the SWEAP team led by J. C. Kasper, the ISeIS team led by D. J. McComas, and the FIELDS team led by S. D. Bale, for the use of PSP data. The data used in this paper can be downloaded from spdf.gsfc.nasa.gov, www.srl.caltech.edu/ACE/ASC/, and stereo.gsfc.nasa.gov. Parker Solar Probe was designed, built, and is now operated by the Johns Hopkins Applied Physics Laboratory as part of NASA’s Living with a Star (LWS) program (contract NNN06AA01C). Support from the LWS management and technical team has played a critical role in the success of the Parker Solar Probe mission. Simulation results have been provided by the Community Coordinated Modeling Center at Goddard Space Flight Center through their public Runs on Request system (ccmc.gsfc.nasa. gov; run david_lario_012820_SH_1). The ENLIL-Cone Model was developed by D. Odstrcil of George Mason University. We thank the STEREO/SECCHI, STEREO/IMPACT, STEREO/ PLASTIC, SOHO/LASCO, and SDO/AIA teams and Predictive Science Inc. for providing the data used in this study. The STEREO SECCHI data are produced by a consortium of RAL (UK), NRL (USA), LMSAL (USA), GSFC (USA), MPS (Germany), CSL (Belgium), IOTA (France), and IAS (France). SOHO is a mission of international cooperation between ESA and NASA. The SDO/AIA data are provided by the Joint Science Operations Center (JSOC) Science Data Processing (SDP). We acknowledge all of the science instrument teams for making their data used in this paper available. This work utilizes data produced collaboratively between the Air Force Research Laboratory (AFRL) and the National Solar Observatory (NSO). The ADAPT model development is supported by AFRL. We appreciate the reviewer’s comprehensive reading of the article. This work was partially supported under NASA contract NNN06AA01C. D.L. was also supported by NASA-HGI grant NNX16AF73G and NASA/LWS grant NNX15AD03G. L.J. acknowledges support from the NASA Program NNH16ZDA001N-HSR and NNH17ZDA001-HSR. D.L., L.B., and I.R. acknowledge the support from the NASA Program NNH17ZDA001N-LWS.en_US
dc.description.urihttps://iopscience.iop.org/article/10.3847/1538-4357/ab9942en_US
dc.format.extent23 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2zm2b-uiqs
dc.identifier.citationLario, D.; Balmaceda, L.; Alzate, N.; Mays, M. L.; Richardson, I. G.; Allen, R. C.; Florido-Llinas, M.; Nieves-Chinchilla, T.; Koval, A.; Lugaz, N.; Jian, L. K.; Arge, C. N.; Macneice, P. J.; Odstrcil, D.; Morgan, H.; Szabo, A.; Desai, M. I.; Whittlesey, P. L.; Stevens, M. L.; Ho, G. C.; Luhmann, J. G.; The Streamer Blowout Origin of a Flux Rope and Energetic Particle Event Observed by Parker Solar Probe at 0.5 au; The Astrophysical Journal, Volume 897, Number 2 (2020); https://iopscience.iop.org/article/10.3847/1538-4357/ab9942en_US
dc.identifier.urihttps://doi.org/10.3847/1538-4357/ab9942
dc.identifier.urihttp://hdl.handle.net/11603/19370
dc.language.isoen_USen_US
dc.publisherThe American Astronomical Societyen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Goddard Planetary Heliophysics Institute (GPHI)
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.rightsPublic Domain Mark 1.0*
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.titleThe Streamer Blowout Origin of a Flux Rope and Energetic Particle Event Observed by Parker Solar Probe at 0.5 auen_US
dc.typeTexten_US

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