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dc.date.accessioned2020-05-11T18:48:50Z
dc.date.available2020-05-11T18:48:50Z
dc.date.created2020-01-13T11:10:10Z
dc.date.issued2019
dc.identifier.citationPanesar, Navdeep K. Sterling, Alphonse C. Moore, Ronald L. Winebarger, Amy R. Tiwari, Sanjiv K. Savage, Sabrina L. Golub, Leon E. Rachmeler, Laurel A. Kobayashi, Ken Brooks, David H. Cirtain, Jonathan W. De Pontieu, Bart Walter McKenzie, David E. Morton, Richard J. Peter, Hardi Testa, Paola Walsh, Robert W. Warren, Harry P. . Hi-C 2.1 Observations of Jetlet-like Events at Edges of Solar Magnetic Network Lanes. Astrophysical Journal Letters. 2019, 887(1)
dc.identifier.urihttp://hdl.handle.net/10852/75426
dc.description.abstractWe present high-resolution, high-cadence observations of six, fine-scale, on-disk jet-like events observed by the High-resolution Coronal Imager 2.1 (Hi-C 2.1) during its sounding-rocket flight. We combine the Hi-C 2.1 images with images from the Solar Dynamics Observatory (SDO)/Atmospheric Imaging Assembly (AIA) and the Interface Region Imaging Spectrograph (IRIS), and investigate each event's magnetic setting with co-aligned line-of-sight magnetograms from the SDO/Helioseismic and Magnetic Imager (HMI). We find that (i) all six events are jetlet-like (having apparent properties of jetlets), (ii) all six are rooted at edges of magnetic network lanes, (iii) four of the jetlet-like events stem from sites of flux cancelation between majority-polarity network flux and merging minority-polarity flux, and (iv) four of the jetlet-like events show brightenings at their bases reminiscent of the base brightenings in coronal jets. The average spire length of the six jetlet-like events (9000 ± 3000 km) is three times shorter than that for IRIS jetlets (27,000 ± 8000 km). While not ruling out other generation mechanisms, the observations suggest that at least four of these events may be miniature versions of both larger-scale coronal jets that are driven by minifilament eruptions and still-larger-scale solar eruptions that are driven by filament eruptions. Therefore, we propose that our Hi-C events are driven by the eruption of a tiny sheared-field flux rope, and that the flux rope field is built and triggered to erupt by flux cancelation.
dc.languageEN
dc.publisherInstitute of Physics Publishing Ltd.
dc.titleHi-C 2.1 Observations of Jetlet-like Events at Edges of Solar Magnetic Network Lanes
dc.typeJournal article
dc.creator.authorPanesar, Navdeep K.
dc.creator.authorSterling, Alphonse C.
dc.creator.authorMoore, Ronald L.
dc.creator.authorWinebarger, Amy R.
dc.creator.authorTiwari, Sanjiv K.
dc.creator.authorSavage, Sabrina L.
dc.creator.authorGolub, Leon E.
dc.creator.authorRachmeler, Laurel A.
dc.creator.authorKobayashi, Ken
dc.creator.authorBrooks, David H.
dc.creator.authorCirtain, Jonathan W.
dc.creator.authorDe Pontieu, Bart Walter
dc.creator.authorMcKenzie, David E.
dc.creator.authorMorton, Richard J.
dc.creator.authorPeter, Hardi
dc.creator.authorTesta, Paola
dc.creator.authorWalsh, Robert W.
dc.creator.authorWarren, Harry P.
cristin.unitcode185,15,3,40
cristin.unitnameRosseland senter for solfysikk
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2
dc.identifier.cristin1771227
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Astrophysical Journal Letters&rft.volume=887&rft.spage=&rft.date=2019
dc.identifier.jtitleAstrophysical Journal Letters
dc.identifier.volume887
dc.identifier.issue1
dc.identifier.pagecount9
dc.identifier.doihttps://doi.org/10.3847/2041-8213/ab594a
dc.identifier.urnURN:NBN:no-78576
dc.type.documentTidsskriftartikkel
dc.type.peerreviewedPeer reviewed
dc.source.issn2041-8205
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/75426/1/Panesar_2019_ApJL_887_L8.pdf
dc.type.versionPublishedVersion
cristin.articleidL8
dc.relation.projectNFR/262622


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